don't use __MSL__ unless it's defined

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35852 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/mac/carbon/dccg.cpp b/src/mac/carbon/dccg.cpp
index a91add9cef5ab487584dd6254d03fdf1c8df743b..eaaa2f179cfdb301401f576d28e515cefff7d064 100755 (executable)
--- a/src/mac/carbon/dccg.cpp
+++ b/src/mac/carbon/dccg.cpp
@@ -24,9 +24,11 @@
 #include "wx/log.h"
 
 
-#if __MSL__ >= 0x6000
-#include "math.h"
-using namespace std ;
+#ifdef __MSL__
+    #if __MSL__ >= 0x6000
+        #include "math.h"
+        using namespace std ;
+    #endif
 #endif
 
 #include "wx/mac/private.h"