Performing C SOURCE FILE Test CMAKE_HAVE_LIBC_PTHREAD failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_3540f/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_3540f.dir/build.make CMakeFiles/cmTC_3540f.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_3540f.dir/src.c.o /home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG -o CMakeFiles/cmTC_3540f.dir/src.c.o -c /home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp/src.c Linking C executable cmTC_3540f /home/buildroot/autobuild/run/instance-3/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_3540f.dir/link.txt --verbose=1 /home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCMAKE_HAVE_LIBC_PTHREAD -DNDEBUG CMakeFiles/cmTC_3540f.dir/src.c.o -o cmTC_3540f /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: CMakeFiles/cmTC_3540f.dir/src.c.o: in function `.L0 ': src.c:(.text.startup+0x1c): undefined reference to `pthread_create' /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: src.c:(.text.startup+0x24): undefined reference to `pthread_detach' /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/10.2.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: src.c:(.text.startup+0x30): undefined reference to `pthread_join' collect2: error: ld returned 1 exit status make[2]: *** [cmTC_3540f] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_3540f/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/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-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_2d798/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_2d798.dir/build.make CMakeFiles/cmTC_2d798.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_2d798.dir/CheckFunctionExists.c.o /home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG -o CMakeFiles/cmTC_2d798.dir/CheckFunctionExists.c.o -c /home/buildroot/autobuild/run/instance-3/output-1/host/share/cmake-3.15/Modules/CheckFunctionExists.c Linking C executable cmTC_2d798 /home/buildroot/autobuild/run/instance-3/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_2d798.dir/link.txt --verbose=1 /home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-gcc --sysroot=/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG CMakeFiles/cmTC_2d798.dir/CheckFunctionExists.c.o -o cmTC_2d798 -lpthreads /home/buildroot/autobuild/run/instance-3/output-1/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]: *** [cmTC_2d798] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_2d798/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' Performing C++ SOURCE FILE Test FOUND_BSD_UUID failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_f558f/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_f558f.dir/build.make CMakeFiles/cmTC_f558f.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_f558f.dir/src.cxx.o /home/buildroot/autobuild/run/instance-3/output-1/host/bin/riscv64-linux-g++ --sysroot=/home/buildroot/autobuild/run/instance-3/output-1/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -latomic -DFOUND_BSD_UUID -DNDEBUG -std=c++17 -o CMakeFiles/cmTC_f558f.dir/src.cxx.o -c /home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp/src.cxx /home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp/src.cxx:2:13: fatal error: uuid.h: No such file or directory 2 | #include | ^~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_f558f.dir/src.cxx.o] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_f558f/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-3/output-1/build/gerbera-1.8.0/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; }