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View File grub2-fix-build-error-on-flex-2.5.37.patch of Package grub2 (Project openSUSE:Factory)

From b9701a5d7a60dac218d9bb309560cd4aab57b6cd Mon Sep 17 00:00:00 2001
From: Michael Chang <mchang@suse.com>
Date: Thu, 25 Oct 2012 14:18:31 +0800
Subject: [PATCH] fix build error on flex-2.5.37

Patch-Mainline: no

New flex version 2.5.37 introduces build error like this

[  420s] grub_script.yy.c: In function 'yy_scan_bytes':
[  420s] grub_script.yy.c:2296:17: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
[  420s] ./grub-core/script/yylex.l: At top level:
[  420s] grub_script.yy.c:2351:13: error: 'yy_fatal_error' defined but not used [-Werror=unused-function]
[  420s] cc1: all warnings being treated as errors

This patch ignore the two diagnostic pragmas as a temporal fix, hope
someone could dig into it and get the root cause.
---
 grub-core/script/yylex.l |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/grub-core/script/yylex.l b/grub-core/script/yylex.l
index f6a39c5..f4ff2bd 100644
--- a/grub-core/script/yylex.l
+++ b/grub-core/script/yylex.l
@@ -29,6 +29,8 @@
 #pragma GCC diagnostic ignored "-Wmissing-prototypes"
 #pragma GCC diagnostic ignored "-Wmissing-declarations"
 #pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wunused-function"
 
 #define yyfree    grub_lexer_yyfree
 #define yyalloc   grub_lexer_yyalloc
-- 
1.7.3.4