Determining if files libudev.h exist failed with the following output: Change Dir: /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/gmake cmTC_91fbf/fast && gmake[1]: Entering directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp' /usr/bin/gmake -f CMakeFiles/cmTC_91fbf.dir/build.make CMakeFiles/cmTC_91fbf.dir/build gmake[2]: Entering directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_91fbf.dir/HAVE_LIBUDEV_H.c.o /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/host/bin/powerpc-buildroot-linux-uclibc-gcc --sysroot=/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/host/powerpc-buildroot-linux-uclibc/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -o CMakeFiles/cmTC_91fbf.dir/HAVE_LIBUDEV_H.c.o -c /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CheckIncludeFiles/HAVE_LIBUDEV_H.c /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CheckIncludeFiles/HAVE_LIBUDEV_H.c:2:10: fatal error: libudev.h: No such file or directory 2 | #include | ^~~~~~~~~~~ compilation terminated. gmake[2]: *** [CMakeFiles/cmTC_91fbf.dir/HAVE_LIBUDEV_H.c.o] Error 1 gmake[2]: Leaving directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp' gmake[1]: *** [cmTC_91fbf/fast] Error 2 gmake[1]: Leaving directory `/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp' Source: /* */ #include int main(void){return 0;}