From 63e1622a2b1a54c5f5dfce5f06e63fbc738e2207 Mon Sep 17 00:00:00 2001
From: jc_gargma <jc_gargma@iserlohn-fortress.net>
Date: Mon, 18 Feb 2019 00:07:18 -0800
Subject: Swap back to using gcc | Now with lto and pgo

---
 PKGBUILD    | 23 ++++++++++++++++-------
 pgo-1.patch | 15 +++++++++++++++
 pgo-2.patch | 11 +++++++++++
 3 files changed, 42 insertions(+), 7 deletions(-)
 create mode 100644 pgo-1.patch
 create mode 100644 pgo-2.patch

diff --git a/PKGBUILD b/PKGBUILD
index 8ba5d3f..8a117e1 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -17,7 +17,7 @@
 pkgname=firefox
 pkgver=65.0.1
 bz2ver=$(echo $pkgver | sed 's/\./_/g')
-pkgrel=1
+pkgrel=2
 pkgdesc="Standalone web browser from mozilla.org"
 arch=(x86_64)
 license=(MPL GPL LGPL)
@@ -35,12 +35,16 @@ options=(!emptydirs !makeflags)
 source=($pkgname-$pkgver.tar.bz2::https://hg.mozilla.org/releases/mozilla-release/archive/FIREFOX_${bz2ver}_RELEASE.tar.bz2
         $pkgname.desktop $pkgname-symbolic.svg
         vendor.js
+        pgo-1.patch
+        pgo-2.patch
         moz.configure.diff
         package-manifest.diff)
 sha256sums=('97c4817feb5e9df065c0544d3589f4c99f7015bfa2c14dc67116f82026d843dd'
             '677e1bde4c6b3cff114345c211805c7c43085038ca0505718a11e96432e9811a'
             '9a1a572dc88014882d54ba2d3079a1cf5b28fa03c5976ed2cb763c93dabbd797'
             '1db31c55df4e45d9f0d2fafaa0a6ea8bc29bf9fb709d3937b1bb6c48b707e756'
+            'a8c15c9d54ef8b360c0932f4ccf5e74954f14e9a9c2a1ae924b6c392075b2b8c'
+            '33a91a7e8ca702ee493f483abe93bf6917881dc4192566587bdfb103da3a2422'
             'ad8a270e1b2affb098440f82517c3952207b28ebf604fef695dad3e29a5ba30e'
             '927e400d6920b98d2fe7db2b6498f195135909a76e0da49441223956364d8227')
 
@@ -48,21 +52,26 @@ prepare() {
 #   mkdir mozbuild
   cd mozilla-release-FIREFOX_${bz2ver}_RELEASE
 
+  # Apply pgo patches
+  patch -p0 $srcdir/mozilla-release-FIREFOX_${bz2ver}_RELEASE/security/sandbox/linux/moz.build $srcdir/pgo-1.patch
+  patch -p0 $srcdir/mozilla-release-FIREFOX_${bz2ver}_RELEASE/extensions/spellcheck/src/moz.build $srcdir/pgo-2.patch
+
   cat >$srcdir/mozilla-release-FIREFOX_${bz2ver}_RELEASE/.mozconfig <<END
 ac_add_options --enable-application=browser
 
 ac_add_options --prefix=/usr
 ac_add_options --enable-release
 ac_add_options --enable-hardening
-ac_add_options --enable-optimize
+ac_add_options --enable-optimize=-O3
 ac_add_options --enable-rust-simd
 ac_add_options --enable-lto
+ac_add_options --enable-linker=gold
 export MOZ_PGO=1
-export CC=clang
-export CXX=clang++
-export AR=llvm-ar
-export NM=llvm-nm
-export RANLIB=llvm-ranlib
+export CC=gcc
+export CXX=g++
+export AR=gcc-ar
+export NM=gcc-nm
+export RANLIB=gcc-ranlib
 
 # Branding
 ac_add_options --enable-official-branding
diff --git a/pgo-1.patch b/pgo-1.patch
new file mode 100644
index 0000000..9f149e8
--- /dev/null
+++ b/pgo-1.patch
@@ -0,0 +1,15 @@
+--- a/security/sandbox/linux/moz.build
++++ b/security/sandbox/linux/moz.build
+@@ -99,9 +99,8 @@ if CONFIG['CC_TYPE'] in ('clang', 'gcc')
+ # gcc lto likes to put the top level asm in syscall.cc in a different partition
+ # from the function using it which breaks the build.  Work around that by
+ # forcing there to be only one partition.
+-for f in CONFIG['OS_CXXFLAGS']:
+-    if f.startswith('-flto') and CONFIG['CC_TYPE'] != 'clang':
+-        LDFLAGS += ['--param lto-partitions=1']
++if CONFIG['CC_TYPE'] != 'clang':
++    LDFLAGS += ['--param', 'lto-partitions=1']
+
+ DEFINES['NS_NO_XPCOM'] = True
+ DisableStlWrapping()
+ 
diff --git a/pgo-2.patch b/pgo-2.patch
new file mode 100644
index 0000000..a55b635
--- /dev/null
+++ b/pgo-2.patch
@@ -0,0 +1,11 @@
+--- a/extensions/spellcheck/src/moz.build
++++ b/extensions/spellcheck/src/moz.build
+@@ -28,3 +28,8 @@ EXPORTS.mozilla += [
+
+ if CONFIG['CC_TYPE'] in ('clang', 'gcc'):
+     CXXFLAGS += ['-Wno-error=shadow']
++
++# spell checker triggers bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88561
++# in gcc 7 and 8. It will be fixed in GCC 7.5 and 8.3
++if CONFIG['CC_TYPE'] in ('gcc'):
++    CXXFLAGS += ['-fno-devirtualize']
-- 
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