>>> fio 3.19 Extracting
gzip -d -c /home/rclinux/rc-buildroot-test/scripts/instance-0/dl/fio/fio-3.19.tar.gz | /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/tar --strip-components=1 -C /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19   -xf -
>>> fio 3.19 Patching

Applying 0001-t-io_uring-don-t-use-rand48_r-variants.patch using patch: 
patching file t/io_uring.c
>>> fio 3.19 Configuring
(cd /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19; PATH="/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" ./configure --cc="/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/sh4-linux-gcc" --extra-cflags="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  ")
Operating system              Linux
CPU                           x86_64
Big endian                    no
Compiler                      /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/sh4-linux-gcc
Cross compile                 yes

Static build                  no
Wordsize                      32
zlib                          yes
Linux AIO support             yes
Linux AIO over io_uring       no
POSIX AIO support             no
POSIX AIO support needs -lrt  no
POSIX AIO fsync               no
POSIX pshared support         yes
pthread_condattr_setclock()   yes
pthread_sigmask()             yes
Solaris AIO support           no
__sync_fetch_and_add          no
__sync_synchronize            yes
__sync_val_compare_and_swap   yes
libverbs                      no
rdmacm                        no
asprintf()                    yes
vasprintf()                   no
Linux fallocate               yes
POSIX fadvise                 yes
POSIX fallocate               yes
sched_setaffinity(3 arg)      yes
sched_setaffinity(2 arg)      no
clock_gettime                 yes
CLOCK_MONOTONIC               yes
CLOCK_MONOTONIC_RAW           yes
CLOCK_MONOTONIC_PRECISE       no
clockid_t                     yes
gettimeofday                  yes
fdatasync                     yes
pipe()                        yes
pipe2()                       yes
pread()                       yes
sync_file_range               yes
EXT4 move extent              yes
Linux splice(2)               yes
GUASI                         no
libnuma                       no
strsep                        yes
strcasestr                    yes
strlcat                       yes
getopt_long_only()            yes
inet_aton                     yes
socklen_t                     yes
__thread                      yes
RUSAGE_THREAD                 no
SCHED_IDLE                    yes
TCP_NODELAY                   yes
Net engine window_size        yes
TCP_MAXSEG                    yes
RLIMIT_MEMLOCK                yes
pwritev/preadv                yes
pwritev2/preadv2              no
IPv6 helpers                  yes
http engine                   no
Rados engine                  no
Rados Block Device engine     no
setvbuf                       yes
Gluster API engine            no
s390_z196_facilities          no
HDFS engine                   no
MTD                           yes
libpmem                       no
libpmemblk                    no
PMDK pmemblk engine           no
PMDK dev-dax engine           no
PMDK libpmem engine           no
DDN's Infinite Memory Engine  no
iscsi engine                  no
NBD engine                    no
lex/yacc for arithmetic       no
getmntent                     yes
getmntinfo                    no
Static Assert                 yes
bool                          yes
strndup                       yes
Valgrind headers              no
Zoned block device support    yes
march_armv8_a_crc_crypto      no
cuda                          no
Build march=native            no
CUnit                         no
__kernel_rwf_t                yes
-Wimplicit-fallthrough        yes
MADV_HUGEPAGE                 yes
gettid                        no
statx(2)/libc                 no
statx(2)/syscall              yes
TCMalloc support              no
>>> fio 3.19 Building
PATH="/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" /usr/bin/make -j6 -C /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19
make[1]: Entering directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19'
FIO_VERSION = fio-3.19
    CC crc/crc16.o
    CC crc/crc32.o
    CC crc/crc32c-arm64.o
    CC crc/crc32c-intel.o
    CC crc/crc32c.o
    CC crc/crc64.o
    CC crc/crc7.o
    CC crc/fnv.o
    CC crc/md5.o
    CC crc/murmur3.o
    CC crc/sha1.o
    CC crc/sha256.o
    CC crc/sha3.o
    CC crc/sha512.o
    CC crc/test.o
    CC crc/xxhash.o
    CC lib/axmap.o
    CC lib/bloom.o
    CC lib/flist_sort.o
    CC lib/gauss.o
    CC lib/getrusage.o
    CC lib/hweight.o
    CC lib/ieee754.o
    CC lib/lfsr.o
    CC lib/memalign.o
    CC lib/memcpy.o
    CC lib/mountcheck.o
    CC lib/num2str.o
    CC lib/output_buffer.o
    CC lib/pattern.o
    CC lib/prio_tree.o
    CC lib/rand.o
    CC lib/rbtree.o
    CC lib/strntol.o
    CC lib/zipf.o
    CC gettime.o
    CC ioengines.o
    CC init.o
    CC stat.o
    CC log.o
    CC time.o
    CC filesetup.o
    CC eta.o
    CC verify.o
    CC memory.o
    CC io_u.o
    CC parse.o
    CC fio_sem.o
    CC rwlock.o
    CC pshared.o
    CC options.o
    CC smalloc.o
    CC filehash.o
    CC profile.o
    CC debug.o
    CC engines/cpu.o
    CC engines/mmap.o
    CC engines/sync.o
    CC engines/null.o
    CC engines/net.o
    CC engines/ftruncate.o
    CC engines/filecreate.o
    CC engines/filestat.o
    CC server.o
    CC client.o
    CC iolog.o
    CC backend.o
    CC libfio.o
    CC flow.o
    CC cconv.o
    CC gettime-thread.o
    CC helpers.o
    CC json.o
    CC idletime.o
    CC td_error.o
    CC profiles/tiobench.o
    CC profiles/act.o
    CC io_u_queue.o
    CC filelock.o
    CC workqueue.o
    CC rate-submit.o
    CC optgroup.o
    CC helper_thread.o
    CC steadystate.o
    CC zone-dist.o
    CC engines/libaio.o
    CC engines/falloc.o
    CC engines/e4defrag.o
    CC engines/splice.o
    CC oslib/asprintf.o
    CC oslib/statx.o
    CC engines/mtd.o
    CC oslib/libmtd.o
    CC oslib/libmtd_legacy.o
    CC zbd.o
    CC diskutil.o
    CC fifo.o
    CC blktrace.o
    CC cgroup.o
    CC trim.o
    CC engines/sg.o
    CC oslib/linux-dev-lookup.o
    CC engines/io_uring.o
    CC fio.o
    CC t/log.o
    CC t/genzipf.o
    CC oslib/strcasestr.o
    CC oslib/strndup.o
    CC t/btrace2fio.o
    CC t/dedupe.o
    CC t/debug.o
    CC t/arch.o
    CC t/verify-state.o
    CC t/stest.o
    CC t/ieee754.o
    CC t/axmap.o
    CC t/lfsr-test.o
    CC t/gen-rand.o
    CC t/memlock.o
    CC t/read-to-pipe-async.o
    CC t/io_uring.o
  LINK fio
  LINK t/fio-genzipf
  LINK t/fio-dedupe
  LINK t/fio-verify-state
  LINK t/stest
  LINK t/ieee754
  LINK t/axmap
  LINK t/lfsr-test
  LINK t/gen-rand
  LINK t/memlock
  LINK t/read-to-pipe-async
  LINK t/fio-btrace2fio
  LINK t/io_uring
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/sh4-buildroot-linux-uclibc/8.3.0/../../../../sh4-buildroot-linux-uclibc/bin/ld: t/io_uring.o: in function `submitter_fn':
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19/t/io_uring.c:317: undefined reference to `arch_flags'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:464: t/io_uring] Error 1
make[1]: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19'
make: *** [package/pkg-generic.mk:269: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/build/fio-3.19/.stamp_built] Error 2
make: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-0/buildroot'