Guard against _USE_MATH_DEFINES redefinition

2023-02-10 19:23:59 -10:00 · 2023-02-10 19:23:59 -10:00 · d2f3eb76f6
parent 7285f0d441
commit d2f3eb76f6
1 changed files with 3 additions and 1 deletions
--- a/include/SDL_stdinc.h
+++ b/include/SDL_stdinc.h
@ -85,7 +85,9 @@
   Visual Studio.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
   for more information.
 */
-#  define _USE_MATH_DEFINES
+#  ifndef _USE_MATH_DEFINES
+#    define _USE_MATH_DEFINES
+#  endif
 # endif
 # include <math.h>
 #endif