add stupid prototype

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@1660 57a11ea4-9604-0410-9ed3-97b8803252fd

src/engine/util.c

@@ -30,6 +30,9 @@
 #include "messages.h"
 #include "util.h"
 
+/* hack alert -- stpcpy prototype is missing, use -DGNU */
+char * stpcpy (char *dest, const char *src);
+
 /** GLOBALS *********************************************************/
 /* 
    0 == disable all messages