From c8408b459b88a5aa5f4325e690aef95b5da7c2eb Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mjw@redhat.com>
Date: Sun, 14 Feb 2010 21:42:06 +0100
Subject: [PATCH] PR11281 Allow negative values for -D argument.

Change regexp match to "^[a-z_][a-z_0-9]*(=-?[a-z_0-9]+)?$".

* main.cxx (main): case 'D' allow optional single minus sign after equal
  in assert_regexp_match().
---
 main.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.cxx b/main.cxx
index b5fdbc0cf..faac7f811 100644
--- a/main.cxx
+++ b/main.cxx
@@ -821,7 +821,7 @@ main (int argc, char * const argv [])
 	  break;
 
 	case 'D':
-          assert_regexp_match ("-D parameter", optarg, "^[a-z_][a-z_0-9]*(=[a-z_0-9]+)?$");
+          assert_regexp_match ("-D parameter", optarg, "^[a-z_][a-z_0-9]*(=-?[a-z_0-9]+)?$");
 	  if (client_options)
 	    client_options_disallowed += client_options_disallowed.empty () ? "-D" : ", -D";
 	  s.macros.push_back (string (optarg));
-- 
2.43.5