--- asymptote-1.79-orig/prc/PRCdouble.h	2008-11-24 01:19:34.000000000 +0100
+++ asymptote-1.79/prc/PRCdouble.h	2009-07-03 17:03:48.219746775 +0200
@@ -110,7 +110,7 @@
 int stCOFDOECompare(const void*,const void*);
 
 #if defined(WORDS_BIG_ENDIAN)
-void *memrchr(const void *,int,size_t);
+const void *memrchr(const void *,int,size_t);
 #endif