From: Matthias Kretz <kretz@kde.org>
Date: Fri, 30 Oct 2015 15:53:37 +0000 (+0100)
Subject: Pass -stdlib= only to preprocessor
X-Git-Tag: v3.2.5~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fcc18aac5751bb881926b64ae2304490a2f3049;p=thirdparty%2Fccache.git

Pass -stdlib= only to preprocessor

Clang warns about an unused -stdlib=libc++ argument if the argument is
passed to the second clang invocation. The -stdlib= argument is only
necessary on preprocessing (to set the system include paths) and on
linking (which is not cached anyway)

Signed-off-by: Matthias Kretz <kretz@kde.org>
---

diff --git a/compopt.c b/compopt.c
index e5b3e0a39..86dd416ad 100644
--- a/compopt.c
+++ b/compopt.c
@@ -78,6 +78,7 @@ static const struct compopt compopts[] = {
 	{"-nostdinc++",     AFFECTS_CPP},
 	{"-remap",          AFFECTS_CPP},
 	{"-save-temps",     TOO_HARD},
+	{"-stdlib=",        AFFECTS_CPP | TAKES_CONCAT_ARG},
 	{"-trigraphs",      AFFECTS_CPP},
 	{"-u",              TAKES_ARG},
 };