diff --git a/include/SDL_config_iphoneos.h b/include/SDL_config_iphoneos.h
index 928976ac9..82d6731f1 100644
--- a/include/SDL_config_iphoneos.h
+++ b/include/SDL_config_iphoneos.h
@@ -82,6 +82,18 @@ typedef unsigned long uintptr_t;
 #define HAVE_SSCANF	1
 #define HAVE_SNPRINTF	1
 #define HAVE_VSNPRINTF	1
+#define HAVE_CEIL	1
+#define HAVE_COPYSIGN	1
+#define HAVE_COS	1
+#define HAVE_COSF	1
+#define HAVE_FABS	1
+#define HAVE_FLOOR	1
+#define HAVE_LOG	1
+#define HAVE_POW	1
+#define HAVE_SCALBN	1
+#define HAVE_SIN	1
+#define HAVE_SINF	1
+#define HAVE_SQRT	1
 #define HAVE_SIGACTION	1
 #define HAVE_SETJMP	1
 #define HAVE_NANOSLEEP	1
diff --git a/include/SDL_config_macosx.h b/include/SDL_config_macosx.h
index c23274e15..1a4351652 100644
--- a/include/SDL_config_macosx.h
+++ b/include/SDL_config_macosx.h
@@ -84,6 +84,18 @@
 #define HAVE_SSCANF	1
 #define HAVE_SNPRINTF	1
 #define HAVE_VSNPRINTF	1
+#define HAVE_CEIL	1
+#define HAVE_COPYSIGN	1
+#define HAVE_COS	1
+#define HAVE_COSF	1
+#define HAVE_FABS	1
+#define HAVE_FLOOR	1
+#define HAVE_LOG	1
+#define HAVE_POW	1
+#define HAVE_SCALBN	1
+#define HAVE_SIN	1
+#define HAVE_SINF	1
+#define HAVE_SQRT	1
 #define HAVE_SIGACTION	1
 #define HAVE_SETJMP	1
 #define HAVE_NANOSLEEP	1