Determining if the pthread_create exist failed with the following output:
Change Dir: /srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_374e0/fast"
/usr/bin/gmake -f CMakeFiles/cmTC_374e0.dir/build.make CMakeFiles/cmTC_374e0.dir/build
gmake[1]: Entering directory `/srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_374e0.dir/CheckSymbolExists.c.o
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/gcc     -o CMakeFiles/cmTC_374e0.dir/CheckSymbolExists.c.o   -c /srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_374e0
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/cmake -E cmake_link_script CMakeFiles/cmTC_374e0.dir/link.txt --verbose=1
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/gcc       CMakeFiles/cmTC_374e0.dir/CheckSymbolExists.c.o  -o cmTC_374e0 -rdynamic 
CMakeFiles/cmTC_374e0.dir/CheckSymbolExists.c.o: In function `main':
CheckSymbolExists.c:(.text+0x16): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
gmake[1]: *** [cmTC_374e0] Error 1
gmake[1]: Leaving directory `/srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp'
gmake: *** [cmTC_374e0/fast] Error 2

File /srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/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: /srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_463a6/fast"
/usr/bin/gmake -f CMakeFiles/cmTC_463a6.dir/build.make CMakeFiles/cmTC_463a6.dir/build
gmake[1]: Entering directory `/srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_463a6.dir/CheckFunctionExists.c.o
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/gcc    -DCHECK_FUNCTION_EXISTS=pthread_create   -o CMakeFiles/cmTC_463a6.dir/CheckFunctionExists.c.o   -c /srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/share/cmake-3.5/Modules/CheckFunctionExists.c
Linking C executable cmTC_463a6
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/cmake -E cmake_link_script CMakeFiles/cmTC_463a6.dir/link.txt --verbose=1
/srv/calibration_data/maus/MAUS-v3.3.0/third_party/install/bin/gcc   -DCHECK_FUNCTION_EXISTS=pthread_create    CMakeFiles/cmTC_463a6.dir/CheckFunctionExists.c.o  -o cmTC_463a6 -rdynamic -lpthreads 
/usr/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
gmake[1]: *** [cmTC_463a6] Error 1
gmake[1]: Leaving directory `/srv/calibration_data/maus/MAUS-v3.3.0/third_party/build/root_v5.34.36/CMakeFiles/CMakeTmp'
gmake: *** [cmTC_463a6/fast] Error 2