from build.log
...
gcc test-wmemcmp.c -c -std=gnu11 -fgnu89-inline  -O3 -Wall -Werror -Wundef -Wwrite-strings -fasynchronous-unwind-tables -fmerge-all-constants -fno-asynchronous-unwind-tables -frounding-math -g -Wstrict-prototypes -Wold-style-definition -mlong-double-128          -I../include -I/builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux/wcsmbs  -I/builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux  -I../sysdeps/unix/sysv/linux/s390/s390-32  -I../sysdeps/unix/sysv/linux/s390/fpu  -I../sysdeps/s390/fpu  -I../sysdeps/unix/sysv/linux/s390  -I../sysdeps/s390/nptl  -I../sysdeps/ieee754/ldbl-64-128  -I../sysdeps/ieee754/ldbl-opt  -I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux  -I../sysdeps/nptl  -I../sysdeps/pthread  -I../sysdeps/gnu  -I../sysdeps/unix/inet  -I../sysdeps/unix/sysv  -I../sysdeps/unix  -I../sysdeps/posix  -I../sysdeps/s390/s390-32/multiarch  -I../sysdeps/s390/s390-32  -I../sysdeps/wordsize-32  -I../sysdeps/s390/multiarch  -I../sysdeps/s390  -I../sysdeps/ieee754/ldbl-128  -I../sysdeps/ieee754/dbl-64  -I../sysdeps/ieee754/flt-32  -I../sysdeps/ieee754  -I../sysdeps/generic  -I.. -I../libio -I. -nostdinc -isystem /usr/lib/gcc/s390-redhat-linux/5.1.1/include -isystem /usr/include  -D_LIBC_REENTRANT -include /builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux/libc-modules.h -DMODULE_NAME=nonlib -include ../include/libc-symbols.h       -D_IO_MTSAFE_IO -o /builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux/wcsmbs/test-wmemcmp.o -MD -MP -MF /builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux/wcsmbs/test-wmemcmp.o.dt -MT /builddir/build/BUILD/glibc-2.22-491-gaf1b2fd/build-s390-redhat-linux/wcsmbs/test-wmemcmp.o
In file included from ../string/test-memcmp.c:27:0,
                 from test-wmemcmp.c:2:
../string/test-memcmp.c: In function 'check1':
../string/test-string.h:135:19: error: array subscript is above array bounds [-Werror=array-bounds]
      if (func_list[f].usable)     \
                   ^
../string/test-memcmp.c:446:7: note: in expansion of macro 'FOR_EACH_IMPL'
       FOR_EACH_IMPL (impl, 0)
       ^
../string/test-string.h:137:22: error: array subscript is above array bounds [-Werror=array-bounds]
   a->name = func_list[f].name;    \
                      ^
../string/test-memcmp.c:446:7: note: in expansion of macro 'FOR_EACH_IMPL'
       FOR_EACH_IMPL (impl, 0)
       ^
../string/test-string.h:138:20: error: array subscript is above array bounds [-Werror=array-bounds]
   a->fn = func_list[f].fn;    \
                    ^
../string/test-memcmp.c:446:7: note: in expansion of macro 'FOR_EACH_IMPL'
       FOR_EACH_IMPL (impl, 0)
       ^



Version-Release number of selected component (if applicable):
glibc-2.22.90-13.fc24 (but exists since glibc-2.22.90-6.fc24 at least)


Additional info: