cmake: fix detection of pthread_setname_np() on Apple platforms.
diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 76f619c..830fefc 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -1019,7 +1019,11 @@ macro(CheckPTHREAD)
check_c_source_compiles("
#include <pthread.h>
int main(int argc, char **argv) {
+ #ifdef __APPLE__
+ pthread_setname_np(pthread_self());
+ #else
pthread_setname_np(pthread_self(), \"\");
+ #endif
return 0;
}" HAVE_PTHREAD_SETNAME_NP)
if (HAVE_PTHREAD_NP_H)