Performing C SOURCE FILE Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY failed with the following output: Change Dir: /home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_a7afd/fast && make[1]: Entering directory '/home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_a7afd.dir/build.make CMakeFiles/cmTC_a7afd.dir/build make[2]: Entering directory '/home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_a7afd.dir/src.c.o /home/buildroot/autobuild/instance-1/output-1/host/bin/riscv64-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-1/output-1/host/riscv64-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCOMPILER_HAS_HIDDEN_INLINE_VISIBILITY -DNDEBUG -fvisibility-inlines-hidden -o CMakeFiles/cmTC_a7afd.dir/src.c.o -c /home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp/src.c cc1: warning: command line option '-fvisibility-inlines-hidden' is valid for C++/ObjC++ but not for C Linking C executable cmTC_a7afd /home/buildroot/autobuild/instance-1/output-1/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_a7afd.dir/link.txt --verbose=1 /home/buildroot/autobuild/instance-1/output-1/host/bin/riscv64-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-1/output-1/host/riscv64-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCOMPILER_HAS_HIDDEN_INLINE_VISIBILITY -DNDEBUG CMakeFiles/cmTC_a7afd.dir/src.c.o -o cmTC_a7afd make[2]: Leaving directory '/home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp' make[1]: Leaving directory '/home/buildroot/autobuild/instance-1/output-1/build/librtlsdr-d794155ba65796a76cd0a436f9709f4601509320/CMakeFiles/CMakeTmp' Source file was: int main(void) { return 0; }