scc

commit f40eebe22cd78f1256af2ea86fe9f64a4d74f00e
parent dfda6fe8550bbdbf1176c76cdbc943cc5a6dec86
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat, 26 Sep 2015 22:06:52 +0200

Mark as used parameters in macro invocations

If we don't mark them as used then any non used parameter of a macro
will generate a warning in every invocation of the macro.

Diffstat:
M
cc1/cpp.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/cc1/cpp.c b/cc1/cpp.c
@@ -67,6 +67,8 @@ nextcpp(void)
 	if (yylen + 1 > arglen)
 		error("argument overflow invoking macro \"%s\"",
 		      macroname);
+	if (yytoken == IDEN)
+		yylval.sym->flags |= ISUSED;
 	memcpy(argp, yytext, yylen);
 	argp += yylen;
 	*argp++ = ' ';