Determining if the include file execinfo.h exists failed with the following output: Change Dir: /data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_a43d2/fast" make[1]: Entering directory '/data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_a43d2.dir/build.make CMakeFiles/cmTC_a43d2.dir/build make[2]: Entering directory '/data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_a43d2.dir/CheckIncludeFile.c.o /data/buildroot/buildroot-test/instance-0/output/host/bin/or1k-linux-gcc --sysroot=/data/buildroot/buildroot-test/instance-0/output/host/or1k-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DNDEBUG -o CMakeFiles/cmTC_a43d2.dir/CheckIncludeFile.c.o -c /data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp/CheckIncludeFile.c /data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:22: fatal error: execinfo.h: No such file or directory compilation terminated. make[2]: *** [CMakeFiles/cmTC_a43d2.dir/build.make:66: CMakeFiles/cmTC_a43d2.dir/CheckIncludeFile.c.o] Error 1 make[2]: Leaving directory '/data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:126: cmTC_a43d2/fast] Error 2 make[1]: Leaving directory '/data/buildroot/buildroot-test/instance-0/output/build/domoticz-4.10717/CMakeFiles/CMakeTmp'