Determining if the pthread_create exist failed with the following output:
Change Dir: /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake cmTC_4f078/fast 
gmake[1]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_4f078.dir/build.make CMakeFiles/cmTC_4f078.dir/build
gmake[2]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_4f078.dir/CheckSymbolExists.c.o
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-gcc --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DNDEBUG   -o CMakeFiles/cmTC_4f078.dir/CheckSymbolExists.c.o   -c /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_4f078
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_4f078.dir/link.txt --verbose=1
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-gcc --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DNDEBUG    CMakeFiles/cmTC_4f078.dir/CheckSymbolExists.c.o  -o cmTC_4f078 
/home/naourr/work/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/aarch64-buildroot-linux-gnu/7.4.0/../../../../aarch64-buildroot-linux-gnu/bin/ld: CMakeFiles/cmTC_4f078.dir/CheckSymbolExists.c.o: in function `main':
CheckSymbolExists.c:(.text.startup+0x0): undefined reference to `pthread_create'
/home/naourr/work/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/aarch64-buildroot-linux-gnu/7.4.0/../../../../aarch64-buildroot-linux-gnu/bin/ld: CheckSymbolExists.c:(.text.startup+0x4): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cmTC_4f078.dir/build.make:87: cmTC_4f078] Error 1
gmake[2]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:121: cmTC_4f078/fast] Error 2
gmake[1]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'

File /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <pthread.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef pthread_create
  return ((int*)(&pthread_create))[argc];
#else
  (void)argc;
  return 0;
#endif
}

Determining if the function pthread_create exists in the pthreads failed with the following output:
Change Dir: /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake cmTC_4c44c/fast 
gmake[1]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_4c44c.dir/build.make CMakeFiles/cmTC_4c44c.dir/build
gmake[2]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_4c44c.dir/CheckFunctionExists.c.o
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-gcc --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG   -o CMakeFiles/cmTC_4c44c.dir/CheckFunctionExists.c.o   -c /usr/share/cmake/Modules/CheckFunctionExists.c
Linking C executable cmTC_4c44c
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_4c44c.dir/link.txt --verbose=1
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-gcc --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG    CMakeFiles/cmTC_4c44c.dir/CheckFunctionExists.c.o  -o cmTC_4c44c -lpthreads 
/home/naourr/work/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/aarch64-buildroot-linux-gnu/7.4.0/../../../../aarch64-buildroot-linux-gnu/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/cmTC_4c44c.dir/build.make:87: cmTC_4c44c] Error 1
gmake[2]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:121: cmTC_4c44c/fast] Error 2
gmake[1]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'


Performing C++ SOURCE FILE Test ICONV_SECOND_ARGUMENT_IS_CONST failed with the following output:
Change Dir: /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake cmTC_58505/fast 
gmake[1]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_58505.dir/build.make CMakeFiles/cmTC_58505.dir/build
gmake[2]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_58505.dir/src.cxx.o
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-g++ --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot    -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2   -latomic -Wall -DICONV_SECOND_ARGUMENT_IS_CONST  -DNDEBUG   -std=c++1z -o CMakeFiles/cmTC_58505.dir/src.cxx.o -c /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx
/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx: In function 'int main()':
/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:9:17: error: invalid conversion from 'const char**' to 'char**' [-fpermissive]
     iconv(conv, &in, &ilen, &out, &olen);
                 ^~~
In file included from /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:2:0:
/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot/usr/include/iconv.h:42:15: note:   initializing argument 2 of 'size_t iconv(iconv_t, char**, size_t*, char**, size_t*)'
 extern size_t iconv (iconv_t __cd, char **__restrict __inbuf,
               ^~~~~
gmake[2]: *** [CMakeFiles/cmTC_58505.dir/build.make:66: CMakeFiles/cmTC_58505.dir/src.cxx.o] Error 1
gmake[2]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:121: cmTC_58505/fast] Error 2
gmake[1]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'

Source file was:

  #include <iconv.h>
  int main(){
    iconv_t conv = 0;
    const char* in = 0;
    size_t ilen = 0;
    char* out = 0;
    size_t olen = 0;
    iconv(conv, &in, &ilen, &out, &olen);
    return 0;
  }

Performing C++ SOURCE FILE Test FOUND_BSD_UUID failed with the following output:
Change Dir: /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake cmTC_155e8/fast 
gmake[1]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_155e8.dir/build.make CMakeFiles/cmTC_155e8.dir/build
gmake[2]: Entering directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_155e8.dir/src.cxx.o
/home/naourr/work/instance-3/output-1/host/bin/aarch64-linux-g++ --sysroot=/home/naourr/work/instance-3/output-1/host/aarch64-buildroot-linux-gnu/sysroot    -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -O2   -latomic -Wall -DFOUND_BSD_UUID  -DNDEBUG   -std=c++1z -o CMakeFiles/cmTC_155e8.dir/src.cxx.o -c /home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx
/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp/src.cxx:2:13: fatal error: uuid.h: No such file or directory
    #include <uuid.h>
             ^~~~~~~~
compilation terminated.
gmake[2]: *** [CMakeFiles/cmTC_155e8.dir/build.make:66: CMakeFiles/cmTC_155e8.dir/src.cxx.o] Error 1
gmake[2]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'
gmake[1]: *** [Makefile:121: cmTC_155e8/fast] Error 2
gmake[1]: Leaving directory '/home/naourr/work/instance-3/output-1/build/gerbera-1.3.2/CMakeFiles/CMakeTmp'

...and run output:

Return value: 1
Source file was:

			#include <uuid.h>
			int main(void) {
				 uuid_t uuid;
				 uint32_t status;
				 uuid_create(&uuid, &status);
				 return 0;
			}