Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_ae8ff/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_ae8ff.dir/build.make CMakeFiles/cmTC_ae8ff.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_ae8ff.dir/src.c.o /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/src.c"' -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG -o CMakeFiles/cmTC_ae8ff.dir/src.c.o -c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c Linking C executable cmTC_ae8ff /home/buildroot/autobuild/run/instance-1/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_ae8ff.dir/link.txt --verbose=1 /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"$(subst /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/,,$(abspath $<))"' -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG CMakeFiles/cmTC_ae8ff.dir/src.c.o -o cmTC_ae8ff /home/buildroot/autobuild/run/instance-1/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.3.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: CMakeFiles/cmTC_ae8ff.dir/src.c.o: in function `main': src.c:(.text.startup+0x2c): undefined reference to `pthread_create' /home/buildroot/autobuild/run/instance-1/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.3.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: src.c:(.text.startup+0x34): undefined reference to `pthread_detach' /home/buildroot/autobuild/run/instance-1/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.3.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: src.c:(.text.startup+0x40): undefined reference to `pthread_join' collect2: error: ld returned 1 exit status make[2]: *** [cmTC_ae8ff] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_ae8ff/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Source file was: #include void* test_func(void* data) { return data; } int main(void) { pthread_t thread; pthread_create(&thread, NULL, test_func, NULL); pthread_detach(thread); pthread_join(thread, NULL); pthread_atfork(NULL, NULL, NULL); pthread_exit(NULL); return 0; } Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_ed3e2/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_ed3e2.dir/build.make CMakeFiles/cmTC_ed3e2.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_ed3e2.dir/CheckFunctionExists.c.o /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"/home/buildroot/autobuild/run/instance-1/output-1/host/share/cmake-3.15/Modules/CheckFunctionExists.c"' -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG -o CMakeFiles/cmTC_ed3e2.dir/CheckFunctionExists.c.o -c /home/buildroot/autobuild/run/instance-1/output-1/host/share/cmake-3.15/Modules/CheckFunctionExists.c Linking C executable cmTC_ed3e2 /home/buildroot/autobuild/run/instance-1/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_ed3e2.dir/link.txt --verbose=1 /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"$(subst /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/,,$(abspath $<))"' -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG CMakeFiles/cmTC_ed3e2.dir/CheckFunctionExists.c.o -o cmTC_ed3e2 -lpthreads /home/buildroot/autobuild/run/instance-1/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.3.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status make[2]: *** [cmTC_ed3e2] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_ed3e2/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Performing C SOURCE FILE Test HAVE_REGEX failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_e62a0/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_e62a0.dir/build.make CMakeFiles/cmTC_e62a0.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_e62a0.dir/src.c.o /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/src.c"' -DHAVE_REGEX -DNDEBUG -o CMakeFiles/cmTC_e62a0.dir/src.c.o -c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c: In function 'main': /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c:6:6: error: 'ret' undeclared (first use in this function); did you mean 'reg'? 6 | ret = regcomp(®, str, REG_EXTENDED|REG_ICASE|REG_NOSUB); | ^~~ | reg /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c:6:6: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [CMakeFiles/cmTC_e62a0.dir/src.c.o] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_e62a0/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Source file was: #include int main() { regex_t reg; const char str[] = "[a-zA-Z0-9]*"; ret = regcomp(®, str, REG_EXTENDED|REG_ICASE|REG_NOSUB); return 0; } Performing C SOURCE FILE Test HAVE_KQUEUE failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_61cd8/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_61cd8.dir/build.make CMakeFiles/cmTC_61cd8.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_61cd8.dir/src.c.o /home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-buildroot-linux-gnueabihf-gcc --sysroot=/home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-gnueabihf/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/src.c"' -DHAVE_KQUEUE -DNDEBUG -o CMakeFiles/cmTC_61cd8.dir/src.c.o -c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c /home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp/src.c:2:12: fatal error: sys/event.h: No such file or directory 2 | #include | ^~~~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_61cd8.dir/src.c.o] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_61cd8/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-1/output-1/build/monkey-f54856ce250c4e25735434dc75717a4b7fbfc45b/CMakeFiles/CMakeTmp' Source file was: #include int main() { return kqueue(); }