=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Building for afl-2.34b
[*] Checking for the ability to compile x86 code...
[+] Everything seems to be working, ready to compile.
cc -O2 -march=i586 -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -DAFL_PATH=\"/usr/pkg/lib/afl\" -DDOC_PATH=\"/usr/pkg/share/doc/afl\" -DBIN_PATH=\"/usr/pkg/bin\" afl-gcc.c -o afl-gcc -Wl,-R/usr/pkg/lib
set -e; for i in afl-g++ afl-clang afl-clang++; do ln -sf afl-gcc $i; done
cc -O2 -march=i586 -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -DAFL_PATH=\"/usr/pkg/lib/afl\" -DDOC_PATH=\"/usr/pkg/share/doc/afl\" -DBIN_PATH=\"/usr/pkg/bin\" afl-fuzz.c -o afl-fuzz -Wl,-R/usr/pkg/lib
cc -O2 -march=i586 -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -DAFL_PATH=\"/usr/pkg/lib/afl\" -DDOC_PATH=\"/usr/pkg/share/doc/afl\" -DBIN_PATH=\"/usr/pkg/bin\" afl-showmap.c -o afl-showmap -Wl,-R/usr/pkg/lib
cc -O2 -march=i586 -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -DAFL_PATH=\"/usr/pkg/lib/afl\" -DDOC_PATH=\"/usr/pkg/share/doc/afl\" -DBIN_PATH=\"/usr/pkg/bin\" afl-tmin.c -o afl-tmin -Wl,-R/usr/pkg/lib
cc -O2 -march=i586 -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -DAFL_PATH=\"/usr/pkg/lib/afl\" -DDOC_PATH=\"/usr/pkg/share/doc/afl\" -DBIN_PATH=\"/usr/pkg/bin\" afl-gotcpu.c -o afl-gotcpu -Wl,-R/usr/pkg/lib
/var/tmp/afl-gotcpu-6ab54a.o: In function `measure_preemption':
/usr/pkgsrc/work/devel/afl/work/afl-2.34b/afl-gotcpu.c:95: undefined reference to `__libc_thr_yield'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:85: recipe for target 'afl-gotcpu' failed
gmake: *** [afl-gotcpu] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /usr/pkgsrc/devel/afl
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/devel/afl