Determining if the pthread_create exist failed with the following output: Change Dir: /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_bb158/fast" make[1]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_bb158.dir/build.make CMakeFiles/cmTC_bb158.dir/build make[2]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_bb158.dir/CheckSymbolExists.c.o /tmp/instance-3/output-1/host/bin/riscv32-linux-gcc --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DNDEBUG -o CMakeFiles/cmTC_bb158.dir/CheckSymbolExists.c.o -c /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_bb158 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_bb158.dir/link.txt --verbose=1 /tmp/instance-3/output-1/host/bin/riscv32-linux-gcc --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DNDEBUG CMakeFiles/cmTC_bb158.dir/CheckSymbolExists.c.o -o cmTC_bb158 /tmp/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv32-buildroot-linux-gnu/8.3.0/../../../../riscv32-buildroot-linux-gnu/bin/ld: CMakeFiles/cmTC_bb158.dir/CheckSymbolExists.c.o: in function `main': CheckSymbolExists.c:(.text.startup+0x0): undefined reference to `pthread_create' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_bb158.dir/build.make:87: cmTC_bb158] Error 1 make[2]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_bb158/fast] Error 2 make[1]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' File /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/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: /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_78af9/fast" make[1]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_78af9.dir/build.make CMakeFiles/cmTC_78af9.dir/build make[2]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_78af9.dir/CheckFunctionExists.c.o /tmp/instance-3/output-1/host/bin/riscv32-linux-gcc --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG -o CMakeFiles/cmTC_78af9.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.13/Modules/CheckFunctionExists.c Linking C executable cmTC_78af9 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_78af9.dir/link.txt --verbose=1 /tmp/instance-3/output-1/host/bin/riscv32-linux-gcc --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DCHECK_FUNCTION_EXISTS=pthread_create -DNDEBUG CMakeFiles/cmTC_78af9.dir/CheckFunctionExists.c.o -o cmTC_78af9 -lpthreads /tmp/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/riscv32-buildroot-linux-gnu/8.3.0/../../../../riscv32-buildroot-linux-gnu/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_78af9.dir/build.make:87: cmTC_78af9] Error 1 make[2]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_78af9/fast] Error 2 make[1]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Performing C++ SOURCE FILE Test HAVE_MACH_ABSOLUTE_TIME failed with the following output: Change Dir: /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_24bf5/fast" make[1]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_24bf5.dir/build.make CMakeFiles/cmTC_24bf5.dir/build make[2]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_24bf5.dir/src.cxx.o /tmp/instance-3/output-1/host/bin/riscv32-linux-g++ --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DHAVE_MACH_ABSOLUTE_TIME -DNDEBUG -std=gnu++11 -o CMakeFiles/cmTC_24bf5.dir/src.cxx.o -c /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp/src.cxx /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp/src.cxx:2:14: fatal error: mach/mach_time.h: No such file or directory #include ^~~~~~~~~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_24bf5.dir/build.make:66: CMakeFiles/cmTC_24bf5.dir/src.cxx.o] Error 1 make[2]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_24bf5/fast] Error 2 make[1]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Source file was: #include int main(){ mach_timebase_info_data_t info; mach_timebase_info(&info); mach_absolute_time(); return 0; } Performing C++ SOURCE FILE Test HAVE_QUERY_PERFORMANCE_COUNTER failed with the following output: Change Dir: /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_05704/fast" make[1]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_05704.dir/build.make CMakeFiles/cmTC_05704.dir/build make[2]: Entering directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Building CXX object CMakeFiles/cmTC_05704.dir/src.cxx.o /tmp/instance-3/output-1/host/bin/riscv32-linux-g++ --sysroot=/tmp/instance-3/output-1/host/riscv32-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -D_FORTIFY_SOURCE=2 -DHAVE_QUERY_PERFORMANCE_COUNTER -DNDEBUG -std=gnu++11 -o CMakeFiles/cmTC_05704.dir/src.cxx.o -c /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp/src.cxx /tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp/src.cxx:2:14: fatal error: Windows.h: No such file or directory #include ^~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_05704.dir/build.make:66: CMakeFiles/cmTC_05704.dir/src.cxx.o] Error 1 make[2]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_05704/fast] Error 2 make[1]: Leaving directory '/tmp/instance-3/output-1/build/gr-osmosdr-0.2.0/buildroot-build/CMakeFiles/CMakeTmp' Source file was: #include int main(){ LARGE_INTEGER value; QueryPerformanceCounter(&value); QueryPerformanceFrequency(&value); return 0; }