Determining if the include file execinfo.h exists failed with the following output: Change Dir: /home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/make cmTC_82fa4/fast && make[1]: Entering directory `/home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_82fa4.dir/build.make CMakeFiles/cmTC_82fa4.dir/build make[2]: Entering directory `/home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_82fa4.dir/CheckIncludeFile.c.o /home/buildroot/autobuild/run/instance-0/output-1/host/bin/xtensa-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/run/instance-0/output-1/host/xtensa-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -mlongcalls -mauto-litpools -Os -DNDEBUG -o CMakeFiles/cmTC_82fa4.dir/CheckIncludeFile.c.o -c /home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp/CheckIncludeFile.c /home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: execinfo.h: No such file or directory #include ^~~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/cmTC_82fa4.dir/CheckIncludeFile.c.o] Error 1 make[2]: Leaving directory `/home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp' make[1]: *** [cmTC_82fa4/fast] Error 2 make[1]: Leaving directory `/home/buildroot/autobuild/run/instance-0/output-1/build/domoticz-0f411f781ae4fb4a82f592d38a3f40578c149533/CMakeFiles/CMakeTmp'