OSX/Mac buildfix changes to GBALink

git-svn-id: https://svn.code.sf.net/p/vbam/code/branches/bgk-link@1149 a31d4220-a93d-0410-bf67-fe4944624d44

src/gba/GBALink.cpp

@@ -1,9 +1,15 @@
 // This file was written by denopqrihg
 // with major changes by tjm
 #include <string.h>
-#include <malloc.h>
 #include <stdio.h>
 
+// malloc.h does not seem to exist on Mac OS 10.7
+#ifdef __APPLE__
+#include <stdlib.h>
+#else
+#include <malloc.h>
+#endif
+
 #ifdef _MSC_VER
 #define snprintf _snprintf
 #endif