From 4bd149d05af56849d68d34e73230bf32209cbd80 Mon Sep 17 00:00:00 2001
From: smatz <smatz@openttd.org>
Date: Tue, 31 May 2016 19:33:33 +0000
Subject: (svn r27595) -Fix: prevent GCC 6 over-optimization

---
 config.lib | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/config.lib b/config.lib
index 0259739eb..021f95cb2 100644
--- a/config.lib
+++ b/config.lib
@@ -1401,6 +1401,12 @@ make_compiler_cflags() {
 			flags="$flags -Wno-free-nonheap-object"
 		fi
 
+		if [ $cc_version -ge 60 ]; then
+			# -flifetime-dse=2 (default since GCC 6) doesn't play
+			# well with our custom pool item allocator
+			cxxflags="$cxxflags -flifetime-dse=1"
+		fi
+
 		if [ "$enable_lto" != "0" ]; then
 			# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
 			has_lto=`$1 -dumpspecs | grep '\%{flto'`
-- 
cgit v1.2.3-54-g00ecf