From 984e2ab973b7ee7f5124c984633b86ac9f61c021 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
Date: Wed, 8 Jul 2015 12:08:50 -0400
Subject: [PATCH] workaround build issues on s390

If MOZ_DEBUG_FLAGS is empty, firefox's build will default it to "-g" which
overrides the -g1 from line above and breaks building on s390
(OOM when linking, rhbz#1238225)

Workaround mis-optimization in javascipt engine on s390 (rhbz#1219542)
---
 rhbz-1219542-s390-build.patch | 23 +++++++++++++++++++++++
 thunderbird.spec              |  8 ++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 rhbz-1219542-s390-build.patch

diff --git a/rhbz-1219542-s390-build.patch b/rhbz-1219542-s390-build.patch
new file mode 100644
index 0000000..4f38200
--- /dev/null
+++ b/rhbz-1219542-s390-build.patch
@@ -0,0 +1,23 @@
+diff -up mozilla-release/js/src/configure.in.opt mozilla-release/js/src/configure.in
+--- mozilla-release/js/src/configure.in.opt	2015-05-04 02:43:23.000000000 +0200
++++ mozilla-release/js/src/configure.in	2015-05-07 14:21:07.685405039 +0200
+@@ -1492,7 +1492,7 @@ case "$host" in
+ *-linux*|*-kfreebsd*-gnu|*-gnu*)
+     HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
+     HOST_NSPR_MDCPUCFG='\"md/_linux.cfg\"'
+-    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
++    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O1}"
+     ;;
+ 
+ *)
+@@ -1674,8 +1674,8 @@ ia64*-hpux*)
+         # while; Intel recommends against using it.
+         MOZ_OPTIMIZE_FLAGS="-O2"
+     elif test "$GNU_CC" -o "$GNU_CXX"; then
+-        MOZ_PGO_OPTIMIZE_FLAGS="-O3"
+-        MOZ_OPTIMIZE_FLAGS="-O3"
++        MOZ_PGO_OPTIMIZE_FLAGS="-O1"
++        MOZ_OPTIMIZE_FLAGS="-O1"
+         if test -z "$CLANG_CC"; then
+            MOZ_OPTIMIZE_FLAGS="-freorder-blocks $MOZ_OPTIMIZE_FLAGS"
+         fi
diff --git a/thunderbird.spec b/thunderbird.spec
index 982d01b..2bfb9d4 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -80,6 +80,7 @@ Patch9:         mozilla-build-arm.patch
 Patch100:       thunderbird-objdir.patch
 Patch101:        build-nspr-prbool.patch
 Patch102:        build-werror.patch
+Patch103:       rhbz-1219542-s390-build.patch
 
 # Linux specific
 Patch200:       thunderbird-enable-addons.patch
@@ -181,6 +182,9 @@ cd mozilla
 %patch300 -p2 -b .852698
 %patch102 -p2 -b .build-werror
 %patch101 -p1 -b .nspr-prbool
+%ifarch s390
+%patch103 -p1 -b .rhbz-1219542-s390-build
+%endif
 %patch400 -p1 -b .966424
 %patch402 -p1 -b .rhbz-1014858
 
@@ -297,6 +301,10 @@ MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-O2//')
 %endif
 %ifarch s390
 MOZ_OPT_FLAGS=$(echo "$MOZ_OPT_FLAGS" | %{__sed} -e 's/-g/-g1/')
+# If MOZ_DEBUG_FLAGS is empty, firefox's build will default it to "-g" which
+# overrides the -g1 from line above and breaks building on s390
+# (OOM when linking, rhbz#1238225)
+export MOZ_DEBUG_FLAGS=" "
 %endif
 %ifarch s390 %{arm} ppc aarch64 i686
 MOZ_LINK_FLAGS="-Wl,--no-keep-memory -Wl,--reduce-memory-overheads"