cmake: make sure check_* uses 2 different variables for clock_gettime
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ebc7835..4f06224 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1536,13 +1536,13 @@ elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
CheckPTHREAD()
if(SDL_CLOCK_GETTIME)
- check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
- if(FOUND_CLOCK_GETTIME)
+ check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME_LIBRT)
+ if(FOUND_CLOCK_GETTIME_LIBRT)
list(APPEND EXTRA_LIBS rt)
set(HAVE_CLOCK_GETTIME 1)
else()
- check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
- if(FOUND_CLOCK_GETTIME)
+ check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME_LIBC)
+ if(FOUND_CLOCK_GETTIME_LIBC)
set(HAVE_CLOCK_GETTIME 1)
endif()
endif()