#!/bin/sh
set -e
. ./conf.sh
umask 022

# THE ONLY PURPOSE ON THIS HERESY IS TO PROVIDE SUPPORT FOR ONE OF MY SINS: GAMING
# THEN THE SOLE PURPOSE OF THIS IS THE SUPPORT OF THE REMAINING 32 BITS _CRAP_
# FROM THE STEAM CLIENT

################################################################################
# there are 2 parts, which have different requirements
#===============================================================================
#     - the steam installer/downloader:
#	  - basically, only a 32 bits glibc installation, and a good set of
#	    unix commands (64 bits ones will do)
#         - it wants /usr/bin/env
#         - it wants /bin/bash (lib pinning uses bash arrays, not POSIX SH with
#           C coded helper)
#	  - it wants /sbin/ldconfig, use an empty script
#	  - do manually the lib pinning (it should be disabled since the empty
#	    /sbin/ldconfig will return nothing)
#===============================================================================
#     - the steam client:
#         - it wants zenity (until it's fixed), use the script faking it in
#           nyanlinux files directory or you can get nasty bash pipe race
#           condition bugs
#         - it wants a dbus system daemon and a dbus session daemon 
#         - it wants a non-root user to run
#	  - proper libs pinned (see the installer/downloader)
#         - it wants the root CA certificates as /etc/ssl/ca-bundle.pem
#         - it will very probably want LIBGL_DRI3_DISABLE=1 (dota2 won't work
#           with this) without lib pinning: elf rpaths from many gfx stack lib
#           build systems destroy lib dependencies loading consistency
#         - it wants /usr/share/alsa for sound and voice support via alsa
#         - it wants /usr/share/X11 and a locale like LANG=en_US.UTF-8 for
#           "normal" key input, or you will get basic input support
################################################################################

# libtool files, *.la, do not interact well with -static-libgcc and
# -static-libstdc++ gcc options

./pkg-build x86-linux-headers
./pkg-build x86-glibc-headers-static-libgcc

# set up the full native system headers in one dir or libgcc will fail to
# configure not able to locate the linux headers (no configuration option allows
# to fix it)
cp -r $x86_prefix/devel/include-linux/include/* $x86_prefix/devel/include-glibc-static-libgcc

./pkg-build x86-cross-static-target-libgcc-binutils
./pkg-build x86-cross-static-target-libgcc-gcc-c

./pkg-build x86-glibc

################################################################################
################################################################################
# here, this is enough to run the 32 bits steam installer/downloader
################################################################################
################################################################################

# set up the full native system headers in one dir or libgcc will fail to
# configure not able to locate the linux headers (no configuration option allows
# to fix it)
cp -r $x86_prefix/devel/include-linux/include/* $x86_prefix/devel/include-glibc-linux

./pkg-build x86-cross-binutils
./pkg-build x86-cross-gcc-compilers

./pkg-build x86-llvm
./pkg-build x86-drm
./pkg-build x86-zlib
./pkg-build x86-libpthread-stubs
./pkg-build x86-libXau
# you may have to install the xcb-proto python2 module
./pkg-build x86-libxcb
./pkg-build x86-libX11
./pkg-build x86-libXext
./pkg-build x86-libXfixes
./pkg-build x86-libXdamage
./pkg-build x86-libxshmfence
./pkg-build x86-libXrender
./pkg-build x86-libXrandr
./pkg-build x86-expat
./pkg-build x86-libelf
./pkg-build x86-mesa

# the following are not required to compile mesa, but without being in sync
# with mesa, it will crash the client or the overlay
./pkg-build x86-libXScrnSaver
./pkg-build x86-libXi
./pkg-build x86-libXcomposite
./pkg-build x86-libXcursor
./pkg-build x86-libXinerama
./pkg-build x86-libXdmcp
./pkg-build x86-libXxf86vm
./pkg-build x86-libICE
./pkg-build x86-libSM
./pkg-build x86-libXt
#-------------------------------------------------------------------------------
./pkg-build x86-bzip2
./pkg-build x86-libpng
./pkg-build x86-freetype
./pkg-build x86-nyanuuid
./pkg-build x86-fontconfig
./pkg-build x86-libXft
#-------------------------------------------------------------------------------

# lighten a bit the x86 layer and remove elf rpath
cp -f $x86_cross_toolchain_dir_root/bin/$x86_target_gnu_triple-strip /tmp/strip
find $x86_prefix -type f | while read f; do if file $f | egrep 'ELF.+(shared|executable)' >/dev/null; then /tmp/strip -s $f; chrpath -d $f; fi; done
rm -f /tmp/strip
rm -Rf $x86_prefix/devel/share/doc $x86_prefix/devel/share/man