Determining if the pthread_create exist failed with the following output: Change Dir: /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_78e33/fast" make[1]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_78e33.dir/build.make CMakeFiles/cmTC_78e33.dir/build make[2]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_78e33.dir/CheckSymbolExists.c.o /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-gcc --sysroot=/home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DNDEBUG -o CMakeFiles/cmTC_78e33.dir/CheckSymbolExists.c.o -c /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_78e33 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_78e33.dir/link.txt --verbose=1 /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-gcc --sysroot=/home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DNDEBUG CMakeFiles/cmTC_78e33.dir/CheckSymbolExists.c.o -o cmTC_78e33 /home/mark/buildroot-test/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/7.4.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: CMakeFiles/cmTC_78e33.dir/CheckSymbolExists.c.o: in function `main': CheckSymbolExists.c:(.text.startup+0x0): undefined reference to `pthread_create' /home/mark/buildroot-test/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/7.4.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: CheckSymbolExists.c:(.text.startup+0x4): undefined reference to `pthread_create' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_78e33.dir/build.make:87: cmTC_78e33] Error 1 make[2]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_78e33/fast] Error 2 make[1]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' File /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/CheckSymbolExists.c: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef pthread_create return ((int*)(&pthread_create))[argc]; #else (void)argc; return 0; #endif } Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_afac8/fast" make[1]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_afac8.dir/build.make CMakeFiles/cmTC_afac8.dir/build make[2]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_afac8.dir/CheckFunctionExists.c.o /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-gcc --sysroot=/home/mark/buildroot-test/instance-1/output/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_afac8.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.12/Modules/CheckFunctionExists.c Linking C executable cmTC_afac8 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_afac8.dir/link.txt --verbose=1 /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-gcc --sysroot=/home/mark/buildroot-test/instance-1/output/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_afac8.dir/CheckFunctionExists.c.o -o cmTC_afac8 -lpthreads /home/mark/buildroot-test/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/7.4.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_afac8.dir/build.make:87: cmTC_afac8] Error 1 make[2]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_afac8/fast] Error 2 make[1]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Performing C++ SOURCE FILE Test ICONV_SECOND_ARGUMENT_IS_CONST failed with the following output: Change Dir: /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_f0263/fast" make[1]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_f0263.dir/build.make CMakeFiles/cmTC_f0263.dir/build make[2]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_f0263.dir/src.cxx.o /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-g++ --sysroot=/home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -latomic -Wall -DICONV_SECOND_ARGUMENT_IS_CONST -DNDEBUG -std=c++1z -o CMakeFiles/cmTC_f0263.dir/src.cxx.o -c /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx: In function 'int main()': /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:9:17: error: invalid conversion from 'const char**' to 'char**' [-fpermissive] iconv(conv, &in, &ilen, &out, &olen); ^~~ In file included from /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:2:0: /home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot/usr/include/iconv.h:42:15: note: initializing argument 2 of 'size_t iconv(iconv_t, char**, size_t*, char**, size_t*)' extern size_t iconv (iconv_t __cd, char **__restrict __inbuf, ^~~~~ make[2]: *** [CMakeFiles/cmTC_f0263.dir/build.make:66: CMakeFiles/cmTC_f0263.dir/src.cxx.o] Error 1 make[2]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_f0263/fast] Error 2 make[1]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Source file was: #include int main(){ iconv_t conv = 0; const char* in = 0; size_t ilen = 0; char* out = 0; size_t olen = 0; iconv(conv, &in, &ilen, &out, &olen); return 0; } Performing C++ SOURCE FILE Test FOUND_BSD_UUID failed with the following output: Change Dir: /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_7e527/fast" make[1]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_7e527.dir/build.make CMakeFiles/cmTC_7e527.dir/build make[2]: Entering directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_7e527.dir/src.cxx.o /home/mark/buildroot-test/instance-1/output/host/bin/riscv64-linux-g++ --sysroot=/home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -latomic -Wall -DFOUND_BSD_UUID -DNDEBUG -std=c++1z -o CMakeFiles/cmTC_7e527.dir/src.cxx.o -c /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx /home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:2:13: fatal error: uuid.h: No such file or directory #include ^~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_7e527.dir/build.make:66: CMakeFiles/cmTC_7e527.dir/src.cxx.o] Error 1 make[2]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_7e527/fast] Error 2 make[1]: Leaving directory '/home/mark/buildroot-test/instance-1/output/build/gerbera-1.3.2/CMakeFiles/CMakeTmp' Return value: 1 Source file was: #include int main(void) { uuid_t uuid; uint32_t status; uuid_create(&uuid, &status); return 0; }