kbuild: modpost build fix

scripts/mod/modpost.c: In function `check_license':
scripts/mod/modpost.c:1094: parse error before `const'
scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function)
scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once
scripts/mod/modpost.c:1095: for each function it appears in.)

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/mod/modpost.c

@@ -1084,14 +1084,15 @@ void check_license(struct module *mod)
 	struct symbol *s, *exp;
 
 	for (s = mod->unres; s; s = s->next) {
+		const char *basename;
 		if (mod->gpl_compatible == 1) {
 			/* GPL-compatible modules may use all symbols */
 			continue;
 		}
 		exp = find_symbol(s->name);
 		if (!exp || exp->module == mod)
 			continue;
-		const char *basename = strrchr(mod->name, '/');
+		basename = strrchr(mod->name, '/');
 		if (basename)
 			basename++;
 		switch (exp->export) {