From cbd715bcc2b111875ea1a222401410dec27acf36 Mon Sep 17 00:00:00 2001
From: Orgad Shaneh <orgad.shaneh@audiocodes.com>
Date: Thu, 9 May 2013 08:37:14 +0300
Subject: [PATCH] Support -@file.opt

Some compilers (e.g. diab) use -@ notation for options file
---
 ccache.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ccache.c b/ccache.c
index ada3edfad..fd3d41d30 100644
--- a/ccache.c
+++ b/ccache.c
@@ -1686,10 +1686,13 @@ cc_process_args(struct args *args, struct args **preprocessor_args,
 		}
 
 		/* Handle "@file" argument. */
-		if (str_startswith(argv[i], "@")) {
+		if (str_startswith(argv[i], "@") || str_startswith(argv[i], "-@")) {
 			char *argpath = argv[i] + 1;
 			struct args *file_args;
 
+			if (argpath[-1] == '-') {
+				++argpath;
+			}
 			file_args = args_init_from_gcc_atfile(argpath);
 			if (!file_args) {
 				cc_log("Couldn't read arg file %s", argpath);
-- 
2.47.2