cmake HAVE_GETGRNAM examples

gammu/gammu CMakeLists.txt :124 

check_symbol_exists (getgrnam "grp.h" HAVE_GETGRNAM)

gammu/gammu smsd/CMakeLists.txt :51 

endif (HAVE_GETPWNAM OR HAVE_GETGRNAM OR HAVE_SETUID OR HAVE_SETGID)

DCMTK/dcmtk CMake/GenerateDCMTKConfigure.cmake :526 

CHECK_FUNCTION_EXISTS(getgrnam HAVE_GETGRNAM)