--- ClanLib-3.0.0/configure.ac~	2013-11-05 19:52:09.000000000 +0100
+++ ClanLib-3.0.0/configure.ac	2013-11-05 20:42:25.891716845 +0100
@@ -222,6 +222,7 @@
 		AC_MSG_RESULT([enabled])
 		use_sse2=yes
 	else
+		AC_DEFINE(DISABLE_SSE2)
 		AC_DEFINE(CL_DISABLE_SSE2)
 		AC_MSG_RESULT([disabled])
 	fi
@@ -234,6 +235,7 @@
 		use_sse2=yes
 	else
 		AC_MSG_WARN( [ *** Compliler does not support SSE2 ])
+		AC_DEFINE(DISABLE_SSE2)
 		AC_DEFINE(CL_DISABLE_SSE2)
 		AC_MSG_RESULT([disabled])
 	fi
@@ -248,7 +250,7 @@
 
 	extra_CFLAGS_clanCore="$extra_CFLAGS_clanCore -msse2"
 else
-	extra_CFLAGS_clanCore="$extra_CFLAGS_clanCore -DCL_DISABLE_SSE2"
+	extra_CFLAGS_clanCore="$extra_CFLAGS_clanCore -DCL_DISABLE_SSE2 -DDISABLE_SSE2"
 fi
 extra_CFLAGS_clanCore="$extra_CFLAGS_clanCore -pthread -std=c++0x"