From afce89dac1a3cdb975da72020acdba16940fd679 Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Tue, 6 Aug 2019 12:46:46 +0200
Subject: configure: Allow disabling workaround for TLS bug in old ARM gcc
 versions

Some toolchains (such as sysmobts 201705 one) containing the TLS bug on
old ARM gcc versions (<7.3.0) also crash if the initial workaround found
is aplied (CFLAGS="-mtls-dialect=gnu2"). In that scenario, let's provide
a way to disable the workaround (to avoid "ld" crashing) and warn the
user about requirement to build with -O0 to avoid runtime crashes.

Related: OS#4062
Related: SYS#4628
Change-Id: I04ff8c702eabcf4f6e7b59e11aece2744267cefe
---
 configure.ac | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 3764e29e..7ad5908d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,8 +123,7 @@ AC_DEFUN([CHECK_TM_INCLUDES_TM_GMTOFF], [
 CHECK_TM_INCLUDES_TM_GMTOFF
 
 dnl Check if We need to apply workaround for TLS bug on ARM platform for GCC < 7.3.0:
-CHECK_TLS_GCC_ARM_BUG
-CFLAGS="$CFLAGS $TLS_GCC_ARM_BUG_CFLAGS"
+ARG_ENABLE_DETECT_TLS_GCC_ARM_BUG
 
 dnl Generate the output
 AC_CONFIG_HEADER(config.h)
-- 
cgit v1.2.3