From dd44008d7b4b6eec87d5d519949864916af85113 Mon Sep 17 00:00:00 2001
From: Tom Ritter <tom@mozilla.com>
Date: Tue, 6 Mar 2018 16:40:38 -0600
Subject: [PATCH] Bug 1440013 For MinGW build, pass -Wa,-mbig-obj to solve 'too
 many sections' errors r=glandium

MozReview-Commit-ID: 9ObJnrcpeKe

--HG--
extra : rebase_source : fb071396e0d34e0baa084cb9b238944f7ffe066c
---
 build/autoconf/compiler-opts.m4 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/build/autoconf/compiler-opts.m4 b/build/autoconf/compiler-opts.m4
index 3d9dc5a80032..b8ff219aa5d2 100644
--- a/build/autoconf/compiler-opts.m4
+++ b/build/autoconf/compiler-opts.m4
@@ -123,6 +123,12 @@ if test "$GNU_CC"; then
     if test -z "$DEVELOPER_OPTIONS"; then
         CFLAGS="$CFLAGS -ffunction-sections -fdata-sections"
         CXXFLAGS="$CXXFLAGS -ffunction-sections -fdata-sections"
+
+        # For MinGW, we need big-obj otherwise we create too many sections in Unified builds
+        if test "${OS_ARCH}" = "WINNT"; then
+            CFLAGS="$CFLAGS -Wa,-mbig-obj"
+            CXXFLAGS="$CXXFLAGS -Wa,-mbig-obj"
+        fi
     fi
     CFLAGS="$CFLAGS -fno-math-errno"
     CXXFLAGS="$CXXFLAGS -fno-exceptions -fno-math-errno"