--- xc/lib/GL/glx/Imakefile	2006-02-20 01:14:35.000000000 +0100
+++ xc/lib/GL/glx/Imakefile-new	2006-06-11 03:21:31.564753888 +0200
@@ -149,8 +149,13 @@
 		glx_query.o \
 		glx_texture_compression.o
 
-     GLX_DEFS = GlxDefines VidModeExtensionDefines \
-	        -DDEFAULT_DRIVER_DIR=\"$(MODULEDIR)/dri\"
+#if defined(AlphaArchitecture)
+     GLX_DEFS = GlxDefines VidModeExtensionDefines -D__GLX_ALIGN64 \
+               -DDEFAULT_DRIVER_DIR=\"$(MODULEDIR)/dri\"
+#else
+      GLX_DEFS = GlxDefines VidModeExtensionDefines \
+                -DDEFAULT_DRIVER_DIR=\"$(MODULEDIR)/dri\"
+#endif
 
 #ifdef i386Architecture
       ASM_DIR = x86