#!/bin/bash

# Setting up the Xorg Build Environment
# Source: http://linuxfromscratch.org/blfs/view/svn/x/xorg7.html
#
# $BUILD = Directory to temporarily install
# $PKGS  = Directory to store built packages
#
# DEPS
# Required:     NONE
# Recommended:  NONE
# Optional:     NONE

# Choose your installation prefix, and set the XORG_PREFIX 
# variable. /usr is the default. Alternative: /opt/X11
export XORG_PREFIX="/usr"

# Set the following configure switches for Xorg  packages
export XORG_CONFIG="--prefix=$XORG_PREFIX --sysconfdir=/etc \
	    --localstatedir=/var --disable-static"

# Create an /etc/profile.d/xorg.sh configuration file containing 
# these variables as the root user:
cat > /etc/profile.d/xorg.sh << EOF
XORG_PREFIX="$XORG_PREFIX"
XORG_CONFIG="--prefix=\$XORG_PREFIX --sysconfdir=/etc --localstatedir=/var --disable-static"
export XORG_PREFIX XORG_CONFIG
EOF
chmod 644 /etc/profile.d/xorg.sh

# If sudo is installed, ensure that XORG_PREFIX and XORG_CONFIG 
# are available in the sudo environment. As the root user, run 
# the following command
cat > /etc/sudoers.d/xorg << EOF
Defaults env_keep += XORG_PREFIX
Defaults env_keep += XORG_CONFIG
EOF

#################################################
# If the prefix was set to /usr, skip the rest. #
#################################################

cat >> /etc/profile.d/xorg.sh << "EOF"

pathappend $XORG_PREFIX/bin             PATH
pathappend $XORG_PREFIX/lib/pkgconfig   PKG_CONFIG_PATH
pathappend $XORG_PREFIX/share/pkgconfig PKG_CONFIG_PATH

pathappend $XORG_PREFIX/lib             LIBRARY_PATH
pathappend $XORG_PREFIX/include         C_INCLUDE_PATH
pathappend $XORG_PREFIX/include         CPLUS_INCLUDE_PATH

ACLOCAL="aclocal -I $XORG_PREFIX/share/aclocal"

export PATH PKG_CONFIG_PATH ACLOCAL LIBRARY_PATH C_INCLUDE_PATH CPLUS_INCLUDE_PATH
EOF

echo "$XORG_PREFIX/lib" >> /etc/ld.so.conf
sed "s@/usr/X11R6@$XORG_PREFIX@g" -i /etc/man_db.conf
ln -svf $XORG_PREFIX/share/X11 /usr/share/X11
ln -svf $XORG_PREFIX /usr/X11R6