Determining if the backtrace exist failed with the following output: Change Dir: /srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_8c178/fast && make[1]: Entering directory '/srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_8c178.dir/build.make CMakeFiles/cmTC_8c178.dir/build make[2]: Entering directory '/srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_8c178.dir/CheckSymbolExists.c.o /srv/storage/autobuild/run/instance-2/output-1/host/bin/riscv64-linux-gcc --sysroot=/srv/storage/autobuild/run/instance-2/output-1/host/riscv64-buildroot-linux-musl/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -std=gnu99 -Wall -Wextra -D__FILENAME__='"CMakeFiles/CMakeTmp/CheckSymbolExists.c"' -fPIC -DNDEBUG -o CMakeFiles/cmTC_8c178.dir/CheckSymbolExists.c.o -c /srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c /srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c:2:10: fatal error: execinfo.h: No such file or directory 2 | #include | ^~~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_8c178.dir/build.make:66: CMakeFiles/cmTC_8c178.dir/CheckSymbolExists.c.o] Error 1 make[2]: Leaving directory '/srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_8c178/fast] Error 2 make[1]: Leaving directory '/srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp' File /srv/storage/autobuild/run/instance-2/output-1/build/monkey-1.6.9/CMakeFiles/CMakeTmp/CheckSymbolExists.c: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef backtrace return ((int*)(&backtrace))[argc]; #else (void)argc; return 0; #endif }