#!/bin/sh

# Copyright 2008, 2009, 2010, 2011, 2012, 2013  Patrick J. Volkerding, Sebeka, Minnesota, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Thanks to the folks at the Mozilla Foundation for permission to
# distribute this, and for all the great work!  :-)

VERSION=$(basename $(ls firefox-*.tar.?z* | cut -d - -f 2 | rev | cut -f 3- -d . | rev) .source)
RELEASEVER=$(echo $VERSION | cut -f 1 -d r | cut -f 1 -d b)
# With esr releases we need to fix this
if [ "${RELEASEVER}r" = "$VERSION" ]; then
  RELEASEVER=$(echo $RELEASEVER | cut -f 1 -d e)
  RELEASEVERMAJ=$(echo $RELEASEVER | cut -f 1 -d .)
fi
BUILD=${BUILD:-1}

# Specify this variable for a localized build.
# For example, to build a version of Firefox with Italian support, run
# the build script like this:
#
# MOZLOCALIZE=it ./mozilla-firefox.SlackBuild
#
MOZLOCALIZE=${MOZLOCALIZE:-}

# Without LANG=C, building the Python environment may fail with:
# "UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 36: ordinal not in range(128)"
LANG=C

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# Use PGO?  Doubles the time and drive space requirements for the build,
# but should provide a performance increase.  How much depends on which
# benchmarks you believe, but I've typically seen around 2.5%.  I've also
# seen some which say it can be negligably (a fraction of a percent) slower
# with this enganged.  The anecdotal reports usually say there's a noticable
# improvement in overall responsiveness.  Seems like a good bet if you have
# the time and your system is able to handle it.  Set the variable to
# anything else prior to the build to compile Firefox in less time (but
# without the possible benefits of Profile-Guided Optimization).
#
# NOTE:  The 23.0 release fails to compile with a GLib assert error if PGO
# is enabled, so it is being disabled by default.  I can't say I ever noticed
# a lot of difference with this anyway (other than a much, much longer compile
# time.  But pass PGO=yes to the SlackBuild if you want to try it.
#if [ "$ARCH" = "x86_64" ]; then
#  PGO=${PGO:-yes}
#else
#  # 32-bit systems have problems compiling with PGO, as the per-process
#  # memory requirements are too large.  Possibly compiling with a 64-bit
#  # kernel could be a workaround for this, but for now we will default to
#  # using PGO only for x86_64.
#PGO=${PGO:-no}
#fi
#

# PGO is disabled by default:
PGO=${PGO:-yes}
LTO=${LTO:-no}

# Try to be gentle to the compiler, no optimizations:
if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=native"
  LIBDIRSUFFIX=""
  # On IA32, use gold since GNU ld runs out of memory linking libxul.so:
  PATH="$(pwd)/gold:$PATH"
  export CC="gcc -B$(pwd)/gold"
  export CXX="g++ -B$(pwd)/gold"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  # -fuse-linker-plugin
#  SLKCFLAGS="-g0 -O3 -march=amdfam10 -fPIC -mmemcpy-strategy=unrolled_loop:480:noalign,rep_8byte:886:noalign,libcall:1727:noalign,vector_loop:-1:noalign -mmemset-strategy=loop:110:noalign,vector_loop:953:noalign,libcall:8070:noalign,rep_8byte:-1:noalign"
  #SLKCFLAGS="-g0 -O3 -march=native -fPIC -flto=8"
  #SLKCFLAGS="-O3 -march=amdfam10 -fPIC -mmemcpy-strategy=loop:16:noalign,rep_8byte:512:noalign,libcall:-1:noalign -mmemset-strategy=unrolled_loop:128:noalign,libcall:-1:noalign"
#  SLKCFLAGS="-O3 -march=amdfam10 -fPIC -mmemcpy-strategy=loop:8:noalign,rep_8byte:512:noalign,libcall:1024:noalign,vector_loop:-1:noalign -mmemset-strategy=loop:40:noalign,unrolled_loop:1536:noalign,rep_4byte:2048:noalign,rep_8byte:-1:noalign"
#SLKCFLAGS="-O3 -march=amdfam10 -fPIC -mmemcpy-strategy=loop:32:noalign,rep_8byte:512:noalign,libcall:-1:noalign -mmemset-strategy=loop:48:noalign,rep_8byte:1024:noalign,libcall:-1:noalign"

#SLKCFLAGS="-O3 -march=amdfam10 -fPIC -mmemcpy-strategy=unrolled_loop:16:noalign,loop:64:noalign,rep_8byte:512:noalign,libcall:-1:noalign -mmemset-strategy=unrolled_loop:24:noalign,loop:128:noalign,rep_8byte:1024:noalign,libcall:-1:noalign"
#SLKCFLAGS="-O3 -march=amdfam10 -fPIC -mmemcpy-strategy=loop:64:noalign,rep_8byte:512:noalign,libcall:-1:noalign -mmemset-strategy=loop:96:noalign,rep_8byte:768:noalign,libcall:-1:noalign"
#SLKCFLAGS="-g0 -Os -march=amdfam10 -fPIC -fprefetch-loop-arrays --param prefetch-latency=112 --param simultaneous-prefetches=2 -mmemcpy-strategy=loop:96:noalign,unrolled_loop:960:noalign,libcall:-1:noalign -mmemset-strategy=loop:112:noalign,unrolled_loop:1024:noalign,rep_8byte:-1:noalign"
#-fvisibility=hidden
LTOFLAGS=" -flto=5 -fno-fat-lto-objects -fuse-linker-plugin -flto-compression-level=0"
PFGEN=" -fprofile-generate"
EXTLD=" -Wl,-z,norelro "

#-fprefetch-loop-arrays --param prefetch-latency=288 --param simultaneous-prefetches=4 -ftree-parallelize-loops=4
#--param gcse-unrestricted-cost=0
#--param max-gcse-insertion-ratio=10
#--param max-gcse-memory=268435456
#--param ipcp-unit-growth=5
#--param max-inline-insns-single=1
#--param max-inline-insns-auto=1
#--param inline-min-speedup=30
#--param large-unit-insns=24576
#--param inline-unit-growth=5
#--param max-pending-list-length=64
#--param max-modulo-backtrack-attempts=80
#-finline-functions
#--param max-inline-insns-recursive=1
#--param max-inline-insns-recursive-auto=1
#--param max-inline-recursive-depth=12
#--param max-inline-recursive-depth-auto=12
#--param min-inline-recursive-probability=20
#-fvisibility=hidden  -fno-tree-vectorize
#-mmemcpy-strategy=loop:96:noalign,rep_8byte:1024:noalign,libcall:-1:noalign -mmemset-strategy=loop:112:noalign,vector_loop:896:noalign,libcall:-1:noalign \
#--param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=1024
#-fprefetch-loop-arrays --param prefetch-latency=250 --param simultaneous-prefetches=12 \

SLKCFLAGS="\
-O1 -march=native -fPIC -pipe \
-fgcse --param gcse-unrestricted-cost=0 -ftree-vectorize -fvect-cost-model=unlimited -fno-prefetch-loop-arrays \
-fgcse-after-reload --param max-gcse-insertion-ratio=16 --param max-gcse-memory=268435456 \
--param ipcp-unit-growth=0 --param max-inline-insns-single=0 --param max-inline-insns-auto=0 --param inline-min-speedup=24 --param large-unit-insns=15000 \
--param inline-unit-growth=24 --param max-pending-list-length=32 --param max-modulo-backtrack-attempts=16 --param max-iterations-to-track=600 \
--param max-inline-insns-recursive=0 --param max-inline-insns-recursive-auto=0 --param max-inline-recursive-depth=0 --param max-iterations-computation-cost=16 \
--param max-inline-recursive-depth-auto=0 --param min-inline-recursive-probability=49 --param max-unroll-times=0 --param max-unswitch-insns=0 \
--param max-unrolled-insns=0 --param max-average-unrolled-insns=0 --param max-peeled-insns=0 --param max-completely-peeled-insns=0 --param max-once-peeled-insns=0 \
-mmemcpy-strategy=loop:128:noalign,libcall:-1:noalign -mmemset-strategy=loop:256:noalign,libcall:-1:noalign \
-fauto-inc-dec -fbranch-count-reg -fcombine-stack-adjustments -fcompare-elim -fcprop-registers -fdce -fdefer-pop -fdse -fschedule-fusion \
-fforward-propagate -fguess-branch-probability --param predictable-branch-outcome=5 -fif-conversion2 -fif-conversion -finline-functions-called-once \
-finline-small-functions -fipa-pure-const -fipa-profile -fipa-reference -fmerge-constants -fmove-loop-invariants \
-finline-functions -fshrink-wrap -ftree-bit-ccp -ftree-ccp -ftree-ch -ftree-coalesce-vars -ftree-copy-prop \
-ftree-dce -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre -ftree-phiprop -ftree-sink -ftree-slsr -ftree-sra -ftree-pta \
-ftree-ter -funit-at-a-time -fomit-frame-pointer -fno-align-functions -fno-align-jumps -fno-align-loops -fno-align-labels -fthread-jumps \
-fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fexpensive-optimizations -fhoist-adjacent-loads \
-fipa-cp -fipa-cp-alignment -fipa-sra -fipa-icf -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen \
-fpeephole2 -frerun-cse-after-loop -fsched-interblock -fsched-spec -fschedule-insns -fschedule-insns2 -fstrict-aliasing -fstrict-overflow \
-ftree-builtin-call-dce -ftree-switch-conversion -ftree-tail-merge -ftree-pre -ftree-vrp -fipa-ra -freorder-blocks \
-freorder-blocks-and-partition -freorder-functions -free -fira-region=one -fira-hoist-pressure -fira-loop-pressure -fpredictive-commoning"

SLKCFLAGS="-O3 -march=znver1 -fPIC -pipe"

#-fsplit-wide-types
#-fno-toplevel-reorder
#SLKCFLAGS="-O1 -march=native -fPIC"

#SLKCFLAGS="-Os -march=amdfam10 -fPIC -funit-at-a-time -mmemcpy-strategy=loop:128:noalign,libcall:-1:noalign -mmemset-strategy=loop:128:noalign,libcall:-1:noalign "

#SLKCFLAGS="-O3 -march=amdfam10 -fPIC -minline-all-stringops -fprefetch-loop-arrays --param prefetch-latency=112"
# -flto=8 -ffat-lto-objects -flto-partition=none"  -fpermissive
#  SLKCFLAGS="\
#  -O3 -march=native -fPIC \
#  -fprefetch-loop-arrays \
#  --param l1-cache-line-size=64 \
#  --param l1-cache-size=64 \
#  --param l2-cache-size=512 \
#  --param prefetch-latency=256 \
#  --param simultaneous-prefetches=16 \
#  --param predictable-branch-outcome=2 \
#  --param min-insn-to-prefetch-ratio=10 \
#  --param prefetch-min-insn-to-mem-ratio=3 \
#  -fno-inline \
#  -fno-inline-small-functions \
#  -fno-indirect-inlining \
#  -fno-partial-inlining \
#  -fno-unswitch-loops \
#  -fno-inline-functions \
#  -fno-inline-functions-called-once \
#  -fno-ipa-cp-clone \
#  -fno-unroll-loops"

  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4 -mtune=xscale"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "armel" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Link using gold.  This avoids running out of memory on 32-bit systems, and
# avoids a recurring build failure with GNU ld on other systems.
PATH="$(pwd)/gold:$PATH"
export CC="gcc -B$(pwd)/gold"
export CXX="g++ -B$(pwd)/gold"


CWD=$(pwd)
TMP=${TMP:-/mnt/sdb1/scratch}
PKG=$TMP/package-mozilla-firefox

# If not specified, figure out if this is a beta, an esr
# or a release (we start assuming this last):
MOZVERS=${MOZVERS:-release}
if echo $VERSION | grep -q b ; then # we think it is a beta
  if tar tf $CWD/firefox-$VERSION.source.tar.?z* | grep -q ^mozilla-beta/ ; then
    MOZVERS=beta
  fi
elif echo $VERSION | grep -q esr ; then # we think it is an esr
  if tar tf $CWD/firefox-$VERSION.source.tar.?z* | grep -q ^mozilla-esr$RELEASEVERMAJ/ ; then
    MOZVERS=esr$RELEASEVERMAJ
  fi
fi

NUMJOBS=${NUMJOBS:-" -j17 "}

rm -rf $PKG
mkdir -p $TMP $PKG/usr/lib${LIBDIRSUFFIX}

# We need to use the incredibly ancient autoconf-2.13 for this  :/
( cd $CWD/autoconf ; ./autoconf.build )
PATH=$TMP/autoconf-tmp/usr/bin:$PATH

cd $TMP
rm -rf firefox-$VERSION
tar xvf $CWD/firefox-$VERSION.source.tar.?z* || exit 1
cd firefox-$VERSION || exit 1

# Retain GTK+ v2 scrolling behavior:
zcat $CWD/ff.ui.scrollToClick.diff.gz | patch -p1 --verbose || exit 1

# Fetch localization, if requested:
if [ ! -z $MOZLOCALIZE ]; then
  LOC_TAG="FIREFOX_$( echo $VERSION | tr \. _ )_RELEASE"
  rm -f $LOC_TAG.tar.bz2
  if echo $MOZVERS | grep -q esr ; then LOC_VERS=release ; else LOC_VERS=$MOZVERS ; fi
  wget https://hg.mozilla.org/releases/l10n/mozilla-$LOC_VERS/$MOZLOCALIZE/archive/$LOC_TAG.tar.bz2
  tar xvf $LOC_TAG.tar.bz2
  mv $MOZLOCALIZE-$LOC_TAG $MOZLOCALIZE
fi

# Fix a long standing bug that's prevented staying current on GTK+.
# Thanks to the BLFS folks.  :-)
#cat << EOF >> layout/build/Makefile.in

#ifdef MOZ_ENABLE_CANVAS
#EXTRA_DSO_LDOPTS += \$(XLDFLAGS) -lX11 -lXrender
#endif

#EOF

# Patch mimeTypes.rdf
# Uncomment this if you want to use the patch; otherwise, we overwrite the
# mimeTypes.rdf inside the package directory later
# zcat $CWD/mozilla-firefox-mimeTypes-fix.diff.gz | patch -p1 || exit 1
# zcat $CWD/sqlite-secure-delete.diff.gz | patch -p1 || exit 1
# disable ignoring CFLAGS in security code projects
#zcat $CWD/security-CODE_SIZE.diff.gz | patch -p1 || exit 1

# patch for amdfam10 in nss
#zcat $CWD/nss-amdfam10.diff.gz | patch -p1 || exit 1

# fix broken --disable-pulseaudio
#zcat $CWD/mozilla-firefox-pulseaudio-fix.diff.gz | patch -p1 || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

if gcc --version | grep -q "gcc (GCC) 4.7.0" ; then 
 # Enable compiling with gcc-4.7.0:
 sed -i '/fcntl.h/a#include <unistd.h>' \
   ipc/chromium/src/base/{file_util_linux,message_pump_libevent,process_util_posix}.cc &&
 sed -i '/sys\/time\.h/a#include <unistd.h>' ipc/chromium/src/base/time_posix.cc &&
 sed -i 's#\"PRIxPTR#\" PRIxPTR#' layout/base/tests/TestPoisonArea.cpp &&
 sed -i 's# ""##' browser/base/Makefile.in
fi

#--disable-ion \
#--disable-optimize \
#--with-system-nspr \
#--disable-elf-hack \
#--enable-system-pixman \
#--enable-system-ffi \
#--with-system-libvpx \
#--with-system-icu \
#  --with-system-bz2 \
#  --with-system-jpeg \
#  --with-system-zlib \
#  --enable-system-sqlite \
#  --with-system-libevent \
#  --enable-system-hunspell \
#  --with-system-libvpx \
#  --enable-system-ffi \
#  --enable-system-cairo \
#  --enable-system-pixman \
# --enable-gstreamer=1.0 \
# --enable-meta-components=crypto \
#  --enable-xft \



OPTIONS="\
  --enable-official-branding \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --with-ccache \
  --enable-elf-hack \
  --enable-alsa \
  --with-pthreads \
  --enable-system-sqlite \
  --disable-gconf \
  --disable-dbus \
  --disable-synth-speechd \
  --disable-dbm \
  --disable-webspeech \
  --disable-gamepad \
  --enable-application=browser \
  --enable-default-toolkit=cairo-gtk3 \
  --enable-startup-notification \
  --disable-debug-symbols \
  --disable-debug \
  --enable-strip \
  --enable-cpp-rtti \
  --disable-necko-wifi \
  --disable-accessibility \
  --disable-crashreporter \
  --disable-pulseaudio"


# Our building options, in a configure-like display ;)
#OPTIONS="\
#  --enable-official-branding \
#  --prefix=/usr \
#  --libdir=/usr/lib${LIBDIRSUFFIX} \
#  --with-default-mozilla-five-home=/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER \
#  --enable-application=browser \
#  --enable-official-branding \
#  --enable-static \
#  --disable-shared \
#  --enable-default-toolkit=cairo-gtk2 \
#  --enable-single-profile \
#  --with-pthreads \
#  --enable-webm \
#  --disable-pulseaudio \
#  --disable-crashreporter \
#  --disable-elf-hack \
#  --disable-updater"

#--disable-debug-symbols \
#--disable-debug \
#--disable-content-sandbox \
#  --enable-system-sqlite \
#  --with-system-libevent \
#  --with-system-icu \
#  --enable-system-cairo \
#  --enable-system-ffi \
#  --enable-system-pixman \
#  --with-pthreads \
#  --with-system-bz2 \
#  --with-system-jpeg \
#  --with-system-zlib \
#  --disable-pulseaudio \
#  --disable-crashreporter \
#  --disable-updater"

#  --with-system-libvpx \
#  --with-system-png \
# --disable-optimize --disable-tests
# --disable-elf-hack \
#<   --disable-necko-wifi \
#<   --disable-dbus \
#<   --disable-pulseaudio \
#<   --with-pthreads \
#<   --enable-system-sqlite \
#<   --enable-elf-hack \


# Complains about missing APNG support in Slackware's libpng:
# --with-system-png \
# This option breaks mozilla-12.0:
# --enable-system-cairo \

if [ ! -z $MOZLOCALIZE ]; then
  OPTIONS=$OPTIONS" \
  --enable-ui-locale=$MOZLOCALIZE
  --with-l10n-base=.."
  # There are no dictionaries in localized builds
  sed -i \
    -e "/@BINPATH@\/dictionaries\/\*/d" \
    -e "/@RESPATH@\/dictionaries\/\*/d" \
    browser/installer/package-manifest.in || exit 1
fi

#export HARDENING_PIE="0"
#export CC="/usr/bin/clang"
#export CXX="/usr/bin/clang++"
export MOZILLA_OFFICIAL="1"
export BUILD_OFFICIAL="1"
export MOZ_PHOENIX="1"
export MOZ_PACKAGE_JSSHELL="1"
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export LDFLAGS="$SLKCFLAGS"
export MOZ_MAKE_FLAGS="$NUMJOBS"
export TMPDIR="/mnt/sdb1/scratch/tmp"
#export PROFILE_USE_CFLAGS='\"$LTOFLAGS\"'"
#export PROFILE_GEN_CFLAGS='\"$SLKCFLAGS\"'"

#export EXTRA_DSO_LDFLAGS="-lgcov -static-libgcc"

#export AR="$(CWD)/wrappers/ar"
#export NM="$(CWD)/wrappers/nm"
#export RANLIB="$(CWD)/wrappers/ranlib"

#export EXTRA_DSO_LDFLAGS="-shared"
# These flags are necessary to get elfhack to compile
#export LDFLAGS=$SLKCFLAGS" -Wl,-z,norelro "
# This flag is necessary to link properly
#export RANLIB='ar -s --plugin /usr/local/lib/LLVMgold.so'


# Clear some variables that could break the build
unset DBUS_SESSION_BUS_ADDRESS ORBIT_SOCKETDIR SESSION_MANAGER \
  XDG_SESSION_COOKIE XAUTHORITY MAKEFLAGS

# Assemble our .mozconfig, we use this method for building, seems
# needed for PGO.
echo ". \$topsrcdir/browser/config/mozconfig" > .mozconfig

# Mozilla devs enforce using an objdir for building
# https://developer.mozilla.org/en/Configuring_Build_Options#Building_with_an_objdir
mkdir obj
echo "mk_add_options MOZ_OBJDIR=$(pwd)/obj" >> .mozconfig

if [ "$MOZLOCALIZE" ]; then
  echo "mk_add_options MOZ_CO_LOCALES=\"$MOZLOCALIZE\"" >> .mozconfig
fi

# Write in it the options above
for option in $OPTIONS; do echo "ac_add_options $option" >> .mozconfig; done

#echo "ac_add_options --enable-optimize=\"$SLKCFLAGS\"" >> .mozconfig

# https://developer.mozilla.org/en-US/docs/Building_with_Profile-Guided_Optimization
# Thanks to ArchLinux and Gentoo for the additional hints.
#if [ "$LTO" = "yes" ]; then
#  echo "ac_add_options --disable-elfhack" >> .mozconfig
#else
#  echo "ac_add_options --enable-elfhack" >> .mozconfig
#fi

#cp .mozconfig /tmp/.mozconfig-bak
#export DISPLAY=:99
#export LDFLAGS="$SLKCFLAGS $EXTLD"
#echo "ac_add_options --enable-optimize=\"$SLKCFLAGS\"\"$PFGEN\"" >> .mozconfig
#  Xvfb -nolisten tcp -extension GLX -screen 0 1920x1200x24 $DISPLAY &
#  dbus-launch --exit-with-session make -f client.mk build || exit 1
#  kill $! || true
#export LDFLAGS="$SLKCFLAGS $EXTLD"
#cp /tmp/.mozconfig-bak .mozconfig
#echo "ac_add_options --enable-optimize=\"$SLKCFLAGS\"\"$LTOFLAGS\"" >> .mozconfig
#make -f client.mk build || exit 1


# https://developer.mozilla.org/en-US/docs/Building_with_Profile-Guided_Optimization
# Thanks to ArchLinux and Gentoo for the additional hints.
if [ "$PGO" = "yes" ]; then
  # Do a PGO build, double time and disk space but worth it.
  export MOZ_PGO=1
  echo "mk_add_options PROFILE_GEN_SCRIPT='EXTRA_TEST_ARGS=10 \$(MAKE) -C \$(MOZ_OBJDIR) pgo-profile-run'" >> .mozconfig
  export DISPLAY=:99
  # Launch Xvfb to let the profile scripts run in a X session.
  # Ugly note: if the build breaks you may want to do a "killall Xvfb".
  Xvfb -nolisten tcp -extension GLX -screen 0 3840x2160x24 $DISPLAY &
  dbus-launch --exit-with-session ./mach build || exit 1
  kill $! || true
else
  # Do a normal build
  echo "ac_add_options --disable-tests" >> .mozconfig
  echo "ac_add_options --enable-optimize=\"$SLKCFLAGS\"" >> .mozconfig
  ./mach build || exit 1
fi

./mach buildsymbols || exit 1
DESTDIR=$PKG ./mach install || exit 1


# We don't need these (just symlinks anyway):
rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/firefox-devel-$RELEASEVER

# Nor these:
rm -rf $PKG/usr/include

( cd $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER
  #mv defaults/profile/mimeTypes.rdf defaults/profile/mimeTypes.rdf.orig || exit 1
  if [ -d defaults/profile ]; then
    zcat $CWD/mimeTypes.rdf > defaults/profile/mimeTypes.rdf || exit 1
  fi
  # OK, this patch is useless on 7.x.  We'll float without it and see what happens.
  # Perhaps it won't make a difference or should be worked around elsewhere.
  #zcat $CWD/firefox.moz_plugin_path.diff.gz \
  #  | sed -e "s#usr/lib#usr/lib${LIBDIRSUFFIX}#g" \
  #  | patch -p1 --verbose --backup --suffix=.orig || exit 1
  # Clean up if the above patch was successful:
  #rm -f firefox.orig
) || exit

mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/mozilla/plugins
mkdir -p $PKG/usr/share/applications
cat $CWD/mozilla-firefox.desktop > $PKG/usr/share/applications/mozilla-firefox.desktop

# These files/directories are usually created if Firefox is run as root,
# which on many systems might (and possibly should) be never.  Therefore, if we
# don't see them we'll put stubs in place to prevent startup errors.
( cd $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER
  if [ -d extensions/talkback\@mozilla.org ]; then
    if [ ! -r extensions/talkback\@mozilla.org/chrome.manifest ]; then
      echo > extensions/talkback\@mozilla.org/chrome.manifest
    fi
  fi
  if [ ! -d updates ]; then
    mkdir -p updates/0
  fi
)

# Need some default icons in the right place:
for i in 16 22 24 32 48 256; do
  install -m 0644 -D browser/branding/official/default${i}.png \
    $PKG/usr/share/icons/hicolor/${i}x${i}/apps/firefox.png
done
mkdir -p $PKG/usr/share/pixmaps
( cd $PKG/usr/share/pixmaps ; ln -sf /usr/share/icons/hicolor/256x256/apps/firefox.png . )
mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/chrome/icons/default
install -m 644 browser/branding/official/default16.png \
  $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/icons/
install -m 644 browser/branding/official/default16.png \
  $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/chrome/icons/default/

# Copy over the LICENSE
install -p -c -m 644 LICENSE $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER/

mkdir $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
if [ -z $MOZLOCALIZE ]; then
  /sbin/makepkg -l y -c n $TMP/mozilla-firefox-$VERSION-$ARCH-$BUILD.txz
else
  /sbin/makepkg -l y -c n $TMP/mozilla-firefox-$VERSION-$ARCH-${BUILD}_$MOZLOCALIZE.txz
fi