cannot say isnumber

src/cmd/upas/nfs/a.h

@@ -22,11 +22,6 @@ void		mailthread(void (*fn)(void*), void*);
 
 void		warn(char*, ...);
 
-#define esmprint smprint
-#define emalloc(n) mallocz(n, 1)
-#define erealloc realloc
-#define estrdup strdup
-
 enum
 {
 	NoEncoding,
@@ -40,3 +35,12 @@ char*	tcs(char*, char*);
 char*	unrfc2047(char*);
 
 extern Imap *imap;
+
+#undef isnumber
+#define isnumber	upas_isnumber
+
+#define esmprint smprint
+#define emalloc(n) mallocz(n, 1)
+#define erealloc realloc
+#define estrdup strdup
+

src/cmd/upas/nfs/fs.c

@@ -222,7 +222,7 @@ fsattach(Req *r)
 	respond(r, nil);
 }
 
-int
+static int
 isnumber(char *s)
 {
 	int n;