Index: trunk/xcache/xc_mem.h
===================================================================
--- trunk/xcache/xc_mem.h	(revision 982)
+++ trunk/xcache/xc_mem.h	(revision 1062)
@@ -25,7 +25,7 @@
 #define XC_MEM_STRNDUP(func)         char *func(xc_mem_t *mem, const char *str, xc_memsize_t len)
 #define XC_MEM_STRDUP(func)          char *func(xc_mem_t *mem, const char *str)
-#define XC_MEM_AVAIL(func)           xc_memsize_t      func(xc_mem_t *mem)
-#define XC_MEM_SIZE(func)            xc_memsize_t      func(xc_mem_t *mem)
-#define XC_MEM_FREEBLOCK_FIRST(func) const xc_block_t *func(xc_mem_t *mem)
+#define XC_MEM_AVAIL(func)           xc_memsize_t      func(const xc_mem_t *mem)
+#define XC_MEM_SIZE(func)            xc_memsize_t      func(const xc_mem_t *mem)
+#define XC_MEM_FREEBLOCK_FIRST(func) const xc_block_t *func(const xc_mem_t *mem)
 #define XC_MEM_FREEBLOCK_NEXT(func)  const xc_block_t *func(const xc_block_t *block)
 #define XC_MEM_BLOCK_SIZE(func)      xc_memsize_t      func(const xc_block_t *block)