Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output: Change Dir: /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_98fcb/fast && make[1]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_98fcb.dir/build.make CMakeFiles/cmTC_98fcb.dir/build make[2]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_98fcb.dir/src.c.o /tmp/instance-6/output-1/per-package/gerbera/host/bin/riscv64-linux-gcc --sysroot=/tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG -o CMakeFiles/cmTC_98fcb.dir/src.c.o -c /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp/src.c Linking C executable cmTC_98fcb /tmp/instance-6/output-1/per-package/gerbera/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_98fcb.dir/link.txt --verbose=1 /tmp/instance-6/output-1/per-package/gerbera/host/bin/riscv64-linux-gcc --sysroot=/tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG -latomic CMakeFiles/cmTC_98fcb.dir/src.c.o -o cmTC_98fcb /tmp/instance-6/output-1/per-package/gerbera/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: CMakeFiles/cmTC_98fcb.dir/src.c.o: undefined reference to symbol 'pthread_detach@@GLIBC_2.27' /tmp/instance-6/output-1/per-package/gerbera/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: /tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot/lib64/libpthread.so.0: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_98fcb.dir/build.make:87: cmTC_98fcb] Error 1 make[2]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_98fcb/fast] Error 2 make[1]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/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: /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_78582/fast && make[1]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_78582.dir/build.make CMakeFiles/cmTC_78582.dir/build make[2]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_78582.dir/CheckFunctionExists.c.o /tmp/instance-6/output-1/per-package/gerbera/host/bin/riscv64-linux-gcc --sysroot=/tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG -o CMakeFiles/cmTC_78582.dir/CheckFunctionExists.c.o -c /tmp/instance-6/output-1/per-package/gerbera/host/share/cmake-3.15/Modules/CheckFunctionExists.c Linking C executable cmTC_78582 /tmp/instance-6/output-1/per-package/gerbera/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_78582.dir/link.txt --verbose=1 /tmp/instance-6/output-1/per-package/gerbera/host/bin/riscv64-linux-gcc --sysroot=/tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG -latomic CMakeFiles/cmTC_78582.dir/CheckFunctionExists.c.o -o cmTC_78582 -lpthreads /tmp/instance-6/output-1/per-package/gerbera/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_78582.dir/build.make:87: cmTC_78582] Error 1 make[2]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_78582/fast] Error 2 make[1]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' Performing C++ SOURCE FILE Test FOUND_BSD_UUID failed with the following output: Change Dir: /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_463c6/fast && make[1]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_463c6.dir/build.make CMakeFiles/cmTC_463c6.dir/build make[2]: Entering directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_463c6.dir/src.cxx.o /tmp/instance-6/output-1/per-package/gerbera/host/bin/riscv64-linux-g++ --sysroot=/tmp/instance-6/output-1/per-package/gerbera/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=1 -Wall -DFOUND_BSD_UUID -DNDEBUG -std=c++17 -o CMakeFiles/cmTC_463c6.dir/src.cxx.o -c /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp/src.cxx /tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp/src.cxx:2:13: fatal error: uuid.h: No such file or directory 2 | #include | ^~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_463c6.dir/build.make:66: CMakeFiles/cmTC_463c6.dir/src.cxx.o] Error 1 make[2]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_463c6/fast] Error 2 make[1]: Leaving directory '/tmp/instance-6/output-1/build/gerbera-1.6.4/CMakeFiles/CMakeTmp' ...and run output: Return value: 1 Source file was: #include int main(void) { uuid_t uuid; uint32_t status; uuid_create(&uuid, &status); return 0; }