-# library required by simgear
-# XXX This should go in a module and only run if simgear is not shared.
-
-if(HAVE_UNISTD_H)
-set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH})
-check_cxx_source_compiles(
- "#include <unistd.h>
- #if !defined(_POSIX_TIMERS) || (0 >= _POSIX_TIMERS)
- #error clock_gettime is not supported
- #endif
-
- int main() { return 0; }
- "
- HAVE_CLOCK_GETTIME)
-endif(HAVE_UNISTD_H)
-
-set(RT_LIBRARY "")
-if(HAVE_CLOCK_GETTIME)
-check_function_exists(clock_gettime CLOCK_GETTIME_IN_LIBC)
-if(NOT CLOCK_GETTIME_IN_LIBC)
-check_library_exists(rt clock_gettime "" HAVE_RT)
-if(HAVE_RT)
-set(RT_LIBRARY rt)
-endif(HAVE_RT)
-endif(NOT CLOCK_GETTIME_IN_LIBC)
-endif(HAVE_CLOCK_GETTIME)
-
-find_package(RTI)
-if(RTI_FOUND)
- set(FG_HAVE_HLA 1)
-endif()