X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=configure.ac;h=54ccbcf1a9ed1d87bca9b4bb916d3b330c960be9;hb=9957e4195ed3c559a23007450b801ba32e9db902;hp=be44942b84cdf996b81d4cff66fb8750ed1fb59c;hpb=690ac9e5920c8d3dd0a8a14a7bd163eaf52ce689;p=supertux.git

diff --git a/configure.ac b/configure.ac
index be44942b8..54ccbcf1a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -60,6 +60,12 @@ AC_CHECK_HEADERS(unistd.h)
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_C_BIGENDIAN
+AC_CHECK_SIZEOF([void *])
+AH_BOTTOM([
+#if SIZEOF_VOID_P == 8
+#define _SQ64
+#endif
+])
 
 dnl ===========================================================================
 dnl Give advanced users some options to play with