fio-3.18-r0 do_compile

DEBUG: Executing shell function do_compile
NOTE: make -j 32 -l 48.0 CC=arm-yoe-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon -mfloat-abi=hard -fstack-protector-strong  -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot LDFLAGS=-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -fstack-protector-strong -Wl,-z,relro,-z,now
FIO_VERSION = fio-3.18-dirty
    CC crc/crc32.o
    CC crc/crc32c-intel.o
    CC crc/crc32c-arm64.o
    CC crc/crc16.o
    CC crc/crc64.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32.h:21,
                 from crc/crc32.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c-intel.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC crc/crc7.o
    CC crc/crc32c.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c-arm64.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC crc/fnv.o
    CC crc/murmur3.o
    CC crc/md5.o
    CC crc/sha1.o
    CC crc/sha256.o
    CC crc/sha3.o
    CC crc/test.o
    CC crc/xxhash.o
    CC crc/sha512.o
    CC lib/ieee754.o
    CC lib/bloom.o
    CC lib/getrusage.o
    CC lib/hweight.o
    CC lib/gauss.o
    CC lib/axmap.o
    CC lib/flist_sort.o
    CC lib/lfsr.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/xxhash.h:66,
                 from crc/xxhash.c:65:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from lib/getrusage.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from lib/bloom.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/murmur3.h:4,
                 from crc/murmur3.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/fnv.h:4,
                 from crc/fnv.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha3.c:15:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/hweight.h:4,
                 from lib/hweight.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/memalign.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/ieee754.h:4,
                 from lib/ieee754.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha256.c:19:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/mountcheck.o
    CC lib/memcpy.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c.c:33:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from lib/gauss.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/lfsr.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha1.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/md5.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/output_buffer.o
    CC lib/num2str.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/axmap.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/memcpy.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/prio_tree.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/flist_sort.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/test.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha512.c:14:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/rand.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/mountcheck.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/pattern.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/output_buffer.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/memalign.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/num2str.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/rand.c:36:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/rbtree.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/prio_tree.c:14:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/strntol.o
    CC lib/zipf.o
    CC gettime.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from lib/rbtree.h:97,
                 from lib/rbtree.c:23:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/pattern.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC init.o
    CC ioengines.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from lib/zipf.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/strntol.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from gettime.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC stat.o
    CC log.o
    CC time.o
    CC filesetup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from init.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC eta.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from stat.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC verify.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/time.h:25,
                 from time.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC memory.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from ioengines.c:12:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from filesetup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC io_u.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from eta.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from verify.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from log.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC fio_sem.o
    CC parse.o
    CC rwlock.o
    CC pshared.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/fcntl.h:25,
                 from memory.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from io_u.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from parse.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC options.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from rwlock.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from pshared.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from fio_sem.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC smalloc.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from options.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/cpu.o
    CC profile.o
    CC engines/mmap.o
    CC debug.o
    CC filehash.o
    CC engines/sync.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/mman.h:22,
                 from smalloc.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from profile.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/mmap.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from engines/../fio.h:4,
                 from engines/cpu.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from debug.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/null.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from filehash.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/net.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/sync.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/ftruncate.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/net.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/null.c:16:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/filecreate.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from engines/ftruncate.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC server.o
    CC engines/filestat.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from server.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/filecreate.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/filestat.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC client.o
    CC iolog.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from client.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC backend.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from iolog.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from backend.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC libfio.o
    CC flow.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from libfio.c:25:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC gettime-thread.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from flow.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC helpers.o
    CC cconv.o
    CC json.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from helpers.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/time.h:21,
                 from gettime-thread.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC idletime.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from json.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from cconv.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC td_error.o
    CC profiles/tiobench.o
    CC profiles/act.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from idletime.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from td_error.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from profiles/../fio.h:4,
                 from profiles/tiobench.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from profiles/../fio.h:4,
                 from profiles/act.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC filelock.o
    CC workqueue.o
    CC io_u_queue.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from filelock.c:6:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC rate-submit.o
    CC optgroup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from rate-submit.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from workqueue.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from io_u_queue.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC helper_thread.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from optgroup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC zone-dist.o
    CC steadystate.o
    CC engines/libaio.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/signal.h:25,
                 from helper_thread.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from zone-dist.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from steadystate.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/libaio.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/posixaio.o
    CC engines/splice.o
    CC engines/falloc.o
    CC engines/e4defrag.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/posixaio.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/asprintf.o
    CC oslib/strlcat.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/falloc.c:11:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/splice.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from oslib/asprintf.c:2:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from engines/e4defrag.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/mtd.o
    CC oslib/libmtd.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/mtd.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from oslib/strlcat.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/libmtd_legacy.o
    CC zbd.o
    CC diskutil.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/limits.h:26,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:194,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/syslimits.h:7,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:34,
                 from oslib/libmtd.c:26:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/limits.h:26,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:194,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/syslimits.h:7,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:34,
                 from oslib/libmtd_legacy.c:28:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC fifo.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from diskutil.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from zbd.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC blktrace.o
    CC cgroup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from fifo.c:22:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from cgroup.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from blktrace.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC trim.o
    CC engines/sg.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from trim.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/linux-dev-lookup.o
    CC engines/io_uring.o
    CC fio.o
    CC t/log.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/sg.c:52:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from oslib/linux-dev-lookup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/io_uring.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/genzipf.o
    CC oslib/strcasestr.o
    CC oslib/strndup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from fio.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/dedupe.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/genzipf.c:15:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/log.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/btrace2fio.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/fcntl.h:25,
                 from t/dedupe.c:6:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/debug.o
    CC t/arch.o
    CC t/verify-state.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/btrace2fio.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/debug.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from t/../arch/../lib/ffz.h:4,
                 from t/../arch/arch.h:69,
                 from t/arch.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from t/verify-state.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/stest.o
    CC t/ieee754.o
    CC t/axmap.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/stest.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/lfsr-test.o
    CC t/gen-rand.o
    CC t/memlock.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/ieee754.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/read-to-pipe-async.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/axmap.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/lfsr-test.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/io_uring.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from t/gen-rand.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/read-to-pipe-async.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/memlock.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/io_uring.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
  LINK t/ieee754
  LINK t/fio-genzipf
t/io_uring.c: In function 'io_uring_register_buffers':
t/io_uring.c:103:17: error: '__NR_sys_io_uring_register' undeclared (first use in this function); did you mean 'SYS_io_uring_register'?
  103 |  return syscall(__NR_sys_io_uring_register, s->ring_fd,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_register
t/io_uring.c:103:17: note: each undeclared identifier is reported only once for each function it appears in
t/io_uring.c: In function 'io_uring_register_files':
t/io_uring.c:120:17: error: '__NR_sys_io_uring_register' undeclared (first use in this function); did you mean 'SYS_io_uring_register'?
  120 |  return syscall(__NR_sys_io_uring_register, s->ring_fd,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_register
t/io_uring.c: In function 'io_uring_setup':
t/io_uring.c:126:17: error: '__NR_sys_io_uring_setup' undeclared (first use in this function); did you mean 'SYS_io_uring_setup'?
  126 |  return syscall(__NR_sys_io_uring_setup, entries, p);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_setup
t/io_uring.c: In function 'io_uring_enter':
t/io_uring.c:132:17: error: '__NR_sys_io_uring_enter' undeclared (first use in this function); did you mean 'SYS_io_uring_enter'?
  132 |  return syscall(__NR_sys_io_uring_enter, s->ring_fd, to_submit,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_enter
  LINK t/stest
t/io_uring.c: In function 'io_uring_register_buffers':
t/io_uring.c:105:1: warning: control reaches end of non-void function [-Wreturn-type]
  105 | }
      | ^
t/io_uring.c: In function 'io_uring_register_files':
t/io_uring.c:122:1: warning: control reaches end of non-void function [-Wreturn-type]
  122 | }
      | ^
t/io_uring.c: In function 'io_uring_setup':
t/io_uring.c:127:1: warning: control reaches end of non-void function [-Wreturn-type]
  127 | }
      | ^
t/io_uring.c: In function 'io_uring_enter':
t/io_uring.c:134:1: warning: control reaches end of non-void function [-Wreturn-type]
  134 | }
      | ^
Makefile:386: recipe for target 't/io_uring.o' failed
make: *** [t/io_uring.o] Error 1
make: *** Waiting for unfinished jobs....
ERROR: oe_runmake failed
WARNING: TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/temp/run.do_compile.21986:1 exit 1 from 'exit 1'
ERROR: Execution of 'TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/temp/run.do_compile.21986' failed with exit code 1:
FIO_VERSION = fio-3.18-dirty
    CC crc/crc32.o
    CC crc/crc32c-intel.o
    CC crc/crc32c-arm64.o
    CC crc/crc16.o
    CC crc/crc64.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32.h:21,
                 from crc/crc32.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c-intel.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC crc/crc7.o
    CC crc/crc32c.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c-arm64.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC crc/fnv.o
    CC crc/murmur3.o
    CC crc/md5.o
    CC crc/sha1.o
    CC crc/sha256.o
    CC crc/sha3.o
    CC crc/test.o
    CC crc/xxhash.o
    CC crc/sha512.o
    CC lib/ieee754.o
    CC lib/bloom.o
    CC lib/getrusage.o
    CC lib/hweight.o
    CC lib/gauss.o
    CC lib/axmap.o
    CC lib/flist_sort.o
    CC lib/lfsr.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/xxhash.h:66,
                 from crc/xxhash.c:65:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from lib/getrusage.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from lib/bloom.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/murmur3.h:4,
                 from crc/murmur3.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/fnv.h:4,
                 from crc/fnv.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha3.c:15:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/hweight.h:4,
                 from lib/hweight.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/memalign.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/ieee754.h:4,
                 from lib/ieee754.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha256.c:19:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/mountcheck.o
    CC lib/memcpy.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/crc32c.h:21,
                 from crc/crc32c.c:33:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from lib/gauss.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/lfsr.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha1.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/md5.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/output_buffer.o
    CC lib/num2str.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/axmap.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from lib/memcpy.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/prio_tree.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/flist_sort.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from crc/test.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from crc/sha512.c:14:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/rand.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/mountcheck.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/pattern.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/output_buffer.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/memalign.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/num2str.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/rand.c:36:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/rbtree.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from lib/prio_tree.c:14:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC lib/strntol.o
    CC lib/zipf.o
    CC gettime.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from lib/rbtree.h:97,
                 from lib/rbtree.c:23:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from lib/pattern.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC init.o
    CC ioengines.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from lib/zipf.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from lib/strntol.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from gettime.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC stat.o
    CC log.o
    CC time.o
    CC filesetup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from init.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC eta.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from stat.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC verify.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/time.h:25,
                 from time.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC memory.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from ioengines.c:12:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from filesetup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC io_u.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from eta.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from verify.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from log.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC fio_sem.o
    CC parse.o
    CC rwlock.o
    CC pshared.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/fcntl.h:25,
                 from memory.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from io_u.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from parse.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC options.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from rwlock.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from pshared.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from fio_sem.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC smalloc.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from options.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/cpu.o
    CC profile.o
    CC engines/mmap.o
    CC debug.o
    CC filehash.o
    CC engines/sync.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/mman.h:22,
                 from smalloc.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from profile.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/mmap.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from engines/../fio.h:4,
                 from engines/cpu.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/assert.h:35,
                 from debug.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/null.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from filehash.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/net.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/sync.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/ftruncate.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/net.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/null.c:16:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/filecreate.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from engines/ftruncate.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC server.o
    CC engines/filestat.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from server.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/filecreate.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/filestat.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC client.o
    CC iolog.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from client.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC backend.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from iolog.c:5:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from backend.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC libfio.o
    CC flow.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from libfio.c:25:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC gettime-thread.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from flow.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC helpers.o
    CC cconv.o
    CC json.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from helpers.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/time.h:21,
                 from gettime-thread.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC idletime.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from json.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from cconv.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC td_error.o
    CC profiles/tiobench.o
    CC profiles/act.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from idletime.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from td_error.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from profiles/../fio.h:4,
                 from profiles/tiobench.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from profiles/../fio.h:4,
                 from profiles/act.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC filelock.o
    CC workqueue.o
    CC io_u_queue.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from filelock.c:6:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC rate-submit.o
    CC optgroup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from rate-submit.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/unistd.h:25,
                 from workqueue.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from io_u_queue.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC helper_thread.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from optgroup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC zone-dist.o
    CC steadystate.o
    CC engines/libaio.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/signal.h:25,
                 from helper_thread.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from zone-dist.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from steadystate.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/libaio.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/posixaio.o
    CC engines/splice.o
    CC engines/falloc.o
    CC engines/e4defrag.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/posixaio.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/asprintf.o
    CC oslib/strlcat.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/falloc.c:11:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/splice.c:8:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from oslib/asprintf.c:2:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from engines/e4defrag.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC engines/mtd.o
    CC oslib/libmtd.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/mtd.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from oslib/strlcat.c:18:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/libmtd_legacy.o
    CC zbd.o
    CC diskutil.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/limits.h:26,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:194,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/syslimits.h:7,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:34,
                 from oslib/libmtd.c:26:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/limits.h:26,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:194,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/syslimits.h:7,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot-native/usr/lib/arm-yoe-linux-gnueabi/gcc/arm-yoe-linux-gnueabi/9.2.0/include-fixed/limits.h:34,
                 from oslib/libmtd_legacy.c:28:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC fifo.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from diskutil.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/errno.h:25,
                 from zbd.c:7:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC blktrace.o
    CC cgroup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from fifo.c:22:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from cgroup.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from blktrace.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC trim.o
    CC engines/sg.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/string.h:26,
                 from trim.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC oslib/linux-dev-lookup.o
    CC engines/io_uring.o
    CC fio.o
    CC t/log.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from engines/sg.c:52:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from oslib/linux-dev-lookup.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdlib.h:25,
                 from engines/io_uring.c:9:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/genzipf.o
    CC oslib/strcasestr.o
    CC oslib/strndup.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sched.h:22,
                 from fio.h:4,
                 from fio.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/dedupe.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/genzipf.c:15:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/log.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/btrace2fio.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/fcntl.h:25,
                 from t/dedupe.c:6:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/debug.o
    CC t/arch.o
    CC t/verify-state.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/btrace2fio.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/debug.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/inttypes.h:25,
                 from t/../arch/../lib/ffz.h:4,
                 from t/../arch/arch.h:69,
                 from t/arch.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/sys/types.h:25,
                 from t/verify-state.c:4:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/stest.o
    CC t/ieee754.o
    CC t/axmap.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/stest.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/lfsr-test.o
    CC t/gen-rand.o
    CC t/memlock.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/ieee754.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/read-to-pipe-async.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/axmap.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/lfsr-test.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
    CC t/io_uring.o
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/math.h:27,
                 from t/gen-rand.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/read-to-pipe-async.c:24:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/memlock.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
In file included from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/bits/libc-header-start.h:33,
                 from TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/stdio.h:27,
                 from t/io_uring.c:1:
TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/recipe-sysroot/usr/include/features.h:397:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
  397 | #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
      |    ^~~~~~~
  LINK t/ieee754
  LINK t/fio-genzipf
t/io_uring.c: In function 'io_uring_register_buffers':
t/io_uring.c:103:17: error: '__NR_sys_io_uring_register' undeclared (first use in this function); did you mean 'SYS_io_uring_register'?
  103 |  return syscall(__NR_sys_io_uring_register, s->ring_fd,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_register
t/io_uring.c:103:17: note: each undeclared identifier is reported only once for each function it appears in
t/io_uring.c: In function 'io_uring_register_files':
t/io_uring.c:120:17: error: '__NR_sys_io_uring_register' undeclared (first use in this function); did you mean 'SYS_io_uring_register'?
  120 |  return syscall(__NR_sys_io_uring_register, s->ring_fd,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_register
t/io_uring.c: In function 'io_uring_setup':
t/io_uring.c:126:17: error: '__NR_sys_io_uring_setup' undeclared (first use in this function); did you mean 'SYS_io_uring_setup'?
  126 |  return syscall(__NR_sys_io_uring_setup, entries, p);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_setup
t/io_uring.c: In function 'io_uring_enter':
t/io_uring.c:132:17: error: '__NR_sys_io_uring_enter' undeclared (first use in this function); did you mean 'SYS_io_uring_enter'?
  132 |  return syscall(__NR_sys_io_uring_enter, s->ring_fd, to_submit,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
      |                 SYS_io_uring_enter
  LINK t/stest
t/io_uring.c: In function 'io_uring_register_buffers':
t/io_uring.c:105:1: warning: control reaches end of non-void function [-Wreturn-type]
  105 | }
      | ^
t/io_uring.c: In function 'io_uring_register_files':
t/io_uring.c:122:1: warning: control reaches end of non-void function [-Wreturn-type]
  122 | }
      | ^
t/io_uring.c: In function 'io_uring_setup':
t/io_uring.c:127:1: warning: control reaches end of non-void function [-Wreturn-type]
  127 | }
      | ^
t/io_uring.c: In function 'io_uring_enter':
t/io_uring.c:134:1: warning: control reaches end of non-void function [-Wreturn-type]
  134 | }
      | ^
Makefile:386: recipe for target 't/io_uring.o' failed
make: *** [t/io_uring.o] Error 1
make: *** Waiting for unfinished jobs....
WARNING: TOPDIR/build/tmp/work/armv7vet2hf-neon-yoe-linux-gnueabi/fio/3.18-r0/temp/run.do_compile.21986:1 exit 1 from 'exit 1'