From 8f23907f3e4c9e40602be0eeebce8c7ea7a9fa3d Mon Sep 17 00:00:00 2001
From: Mans Rullgard <mans@mansr.com>
Date: Fri, 5 Oct 2012 01:30:28 +0100
Subject: build: add -Mdse to PGI optimisation flags

Enable dead store elimination.  The last few releases work no worse
with this flag than without.  Older versions failed to build some
source files when using this flag.

Signed-off-by: Mans Rullgard <mans@mansr.com>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'configure')

diff --git a/configure b/configure
index 34680d4784..d4fcd1f533 100755
--- a/configure
+++ b/configure
@@ -2329,7 +2329,7 @@ probe_cc(){
     elif $_cc -V 2>&1 | grep -q Portland; then
         _type=pgi
         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
-        opt_common='-alias=ansi -Mlre -Mpre'
+        opt_common='-alias=ansi -Mdse -Mlre -Mpre'
         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
         _cflags_size="-O2 -Munroll=c:1 $opt_common"
         _cflags_noopt="-O1"
-- 
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