#!/bin/bash
#######################################################################
# Script : bootstrap-x11-build
# Purpose: Bootstrap Build for X.org packages
# Author : Stuart Winter <mozes@slackware.com>
#          Thanks to Mark Post (Slack390) for the initial build order.
# Version: 2.1
# Change Log
#######################################################################
# v2.1 - Feb 2021
#   * Updated to build Slackware-AArch64
# v2.0 - Jul 2016
#   * Added libvdpau dependency for mesa.
# v1.0 - Dec 2010
#   * First version
#######################################################################
#
# Only for use when there's no X packages available - eg when
# making a new port of Slackware
# You need a few basic packages including some of the basic graphics libraries
# in l/, and ap/linuxdoc-tools and d/python, d/pkgconfig, l/sdl (for xorg-server).
# d/intltool and other bits.
#
# You'll need to do a round of building X first, THEN build l/sdl, then build x
# again -- taken care of in this script.
#
# Once these bootstrap packages have been created, you can run X11.SlackBuild
# to rebuild everything a few times.
#
# You will then have to rebuild some of the l/ and ap/ packages to link
# them with X libraries -- many will build without X support, but Slackware x86's
# packages are built against X (since Slackware packages are always built on a full
# system); *then* rebuild X11 *again* a couple of times; then rebuild some of the l/
# and ap/ series.  For example, d/python in Slackware links against X libraries
# but WILL build (and we NEED python to build some X packages) without it.
# Once you've built all of l/, you should build all of Xorg once again
# to link against anything that wasn't previously present on the system:
# the "compiz" package will also be built on this (final?) pass.
#
# Building an OS from scratch is quite an iterative process.
#
# 2021 update: all of this is automated now!
#       In the r2b build list add this:
#*cd ~/ac/source/x/x11&&./bootstrap-x11-build

# Load Slackware ARM build kit:
source /usr/share/slackdev/buildkit.sh

# Keep a copy of where we were launched from:
export PORTCWD=$PWD

# We want logs since stuff *will* fail during the boot strap
# and some stuff will never build for ARM.
mkdir -vpm755 $PORTCWD/build-logs/$SLKPORTARCH

# This is a wrapper to the SlackBuild: it sets up the environment
# to use distcc across the build cluster.  It calls 'arm/build' which is
# an ARMedslack SlackBuild wrapper script that sets up the envrionment, ensures
# packages are installed.  For the rest of Slackware, you would just call
# the <pkgname>.SlackBuild from this script instead.
export DB=/usr/local/bin/dbuild

# Build X11 skeleton:
( cd ../x11-skel && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/x11-skel-*.t?z )

# Build fontconfig:
( cd ../fontconfig && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/fontconfig-*.t?z )

# Do a few iterations of this build to get everything holding hands:
(  for pass in $( seq 1 5 ); do

cat << EOF
***********************************************************
          Pass $i
***********************************************************
EOF

   # Xorg bits:
   $DB proto
   $DB xcb xcb-proto
   $DB lib libpthread-stubs

   # Build libdrm:
   ( cd ../libdrm && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/libdrm-*.t?z )

   # The x11.SlackBuild in ARMedslack is modified to upgradepkg --install-new
   # after it's created each package.
   #
   $DB util makedepend
   $DB lib xtrans
   $DB lib libXau
   $DB xcb libxcb
   $DB lib libX11
   $DB lib libXdmcp
   $DB lib libXfixes
   $DB lib libXdamage
   $DB lib libXext
   $DB lib libXxf86vm
   $DB lib libICE
   $DB lib libSM
   $DB lib libXt
   $DB lib libXmu
   $DB lib libXi

   # Build glew - needed for Mesa:
   # glew also links against Mesa, which will happen once the first pass
   # has completed.
   ( cd ../glew && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/glew-*.t?z )

   # Build libvdpau (required for mesa):
   ( cd ../libvdpau && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/libvdpau-*.t?z )

   # Build mesa:
   ( cd ../mesa && $DB && upgradepkg --reinstall --install-new $PKGSTORE/x/mesa-*.t?z )

   # Build l/sdl -- needed for xorg-server:
   ( cd $PORTCWD/../../l/sdl && $DB && upgradepkg --reinstall --install-new $PKGSTORE/l/sdl-*.t?z )

   # Now use the X11.SlackBuild to build everything:
   # which includes all of the X components above that are built
   # using $DB:
   $DB

done ) >& /dev/stdout | tee $PORTCWD/build-logs/$SLKPORTARCH/bootstrap-build.log

# Now open the "indibuild" script and uncomment the section that builds
# the fbdev driver, and build that.
# Then run through x11.SlackBuild again.