ports-gcc fix for:
error: enumerator value for 'BLOCKMASK' is not an integer constant
From:
https://sourceforge.net/p/desmume/bugs/1570/

Index: src/MMU_timing.h
--- src/MMU_timing.h.orig
+++ src/MMU_timing.h
@@ -155,8 +155,8 @@ class CacheController (private)
 	enum { ASSOCIATIVITY = 1 << ASSOCIATIVESHIFT };
 	enum { BLOCKSIZE = 1 << BLOCKSIZESHIFT };
 	enum { TAGSHIFT = SIZESHIFT - ASSOCIATIVESHIFT };
-	enum { TAGMASK = (u32)(~0 << TAGSHIFT) };
-	enum { BLOCKMASK = ((u32)~0 >> (32 - TAGSHIFT)) & (u32)(~0 << BLOCKSIZESHIFT) };
+	enum { TAGMASK = (u32)(~0U << TAGSHIFT) };
+	enum { BLOCKMASK = ((u32)~0U >> (32 - TAGSHIFT)) & (u32)(~0U << BLOCKSIZESHIFT) };
 	enum { WORDSIZE = sizeof(u32) };
 	enum { WORDSPERBLOCK = (1 << BLOCKSIZESHIFT) / WORDSIZE };
 	enum { DATAPERWORD = WORDSIZE * ASSOCIATIVITY };