Determining if files libudev.h exist failed with the following output:
Change Dir: /nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_c570e/fast && make[1]: Entering directory '/nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp'
/usr/bin/make  -f CMakeFiles/cmTC_c570e.dir/build.make CMakeFiles/cmTC_c570e.dir/build
make[2]: Entering directory '/nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_c570e.dir/HAVE_LIBUDEV_H.c.o
/nvmedata/autobuild/instance-19/output-1/host/bin/nios2-linux-gnu-gcc --sysroot=/nvmedata/autobuild/instance-19/output-1/host/nios2-buildroot-linux-gnu/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O0 -g0   -DNDEBUG -o CMakeFiles/cmTC_c570e.dir/HAVE_LIBUDEV_H.c.o -c /nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CheckIncludeFiles/HAVE_LIBUDEV_H.c
/nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CheckIncludeFiles/HAVE_LIBUDEV_H.c:2:10: fatal error: libudev.h: No such file or directory
 #include <libudev.h>
          ^~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/cmTC_c570e.dir/build.make:85: CMakeFiles/cmTC_c570e.dir/HAVE_LIBUDEV_H.c.o] Error 1
make[2]: Leaving directory '/nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp'
make[1]: *** [Makefile:140: cmTC_c570e/fast] Error 2
make[1]: Leaving directory '/nvmedata/autobuild/instance-19/output-1/build/linphone-4.4.8/CMakeFiles/CMakeTmp'


Source:
/* */
#include <libudev.h>


int main(void){return 0;}