Determining if the include file execinfo.h exists failed with the following output: Change Dir: /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/gmake cmTC_761ae/fast && gmake[1]: Entering directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp' /usr/bin/gmake -f CMakeFiles/cmTC_761ae.dir/build.make CMakeFiles/cmTC_761ae.dir/build gmake[2]: Entering directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_761ae.dir/CheckIncludeFile.c.o /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-buildroot-linux-uclibcgnueabi-gcc --sysroot=/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabi/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g0 -DNDEBUG -o CMakeFiles/cmTC_761ae.dir/CheckIncludeFile.c.o -c /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp/CheckIncludeFile.c /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: execinfo.h: No such file or directory 1 | #include | ^~~~~~~~~~~~ compilation terminated. gmake[2]: *** [CMakeFiles/cmTC_761ae.dir/CheckIncludeFile.c.o] Error 1 gmake[2]: Leaving directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp' gmake[1]: *** [cmTC_761ae/fast] Error 2 gmake[1]: Leaving directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/rpi-userland-14b90ff9d9f031391a299e6e006965d02bfd1bb1/CMakeFiles/CMakeTmp'