#!/bin/sh
###########################################################################################
# This is the script file 'build-cross.sh'.
# Its job is to build a U**x or Linux-hosted cross compiler targeting an embedded system.
#
# The script is invoked in the following manner:
# sh build-cross.sh targetname [install]
#
# This script assumes that the 'one-tree' script has already been run
# to un-pack the tar files and link them into a source directory named 'src'.
# Typical usage would be to run the script without the 'install' option to compile
# the tools, and then log in as 'root' and re-run with the 'install' option enabled
# to install the tools into the execution directories.
###########################################################################################

###########################################################################################
############################### Configuration variables. ##################################
###########################################################################################

# Define some variables which control the process.
# Modify these to suit your requirements.

# set 'prefix' to the root of the install directory on your U**X box.
# For most Linux systems this should be "/usr".
prefix=/usr

###########################################################################################
############################ End of Configuration variables. ##############################
########### You will most likely not need to change anything below this line. #############
###########################################################################################

# Stop if errors occur along the way.
set -e

# Get the target name specified on the command line, and install flag.
target=$1
action=$2

# Bail if no target given.
if [ x"$target" = x ] || [ x"$target" = xinstall ]
then
	echo "$0: no target name specified."
	echo "usage: '$0 targetname [install]',  where:"
	echo " - 'targetname' specifies the target configuration to build"
	echo " - 'install' (optional) directs the script to install the tools (in $prefix)."
	exit 1
fi

# Announce ourselves
echo "$0: started `date`"

if [ ! -d b-$target ]
then
	mkdir b-$target
fi

cd b-$target
if [ ! -f configure.done ]
then
	echo "$0: configure for $target."
	../src/configure --target=$target --prefix=$prefix -v
	touch configure.done
fi

echo "$0: compile binutils, gcc, and newlib."
make all LANGUAGES="c c++"

# Compilation done, install if asked to do so.
if [ x"$action" = xinstall ]
then
	echo "$0: installing binutils, gcc, and newlib in $prefix."
	make install LANGUAGES="c c++"
fi

# Announce that we're finished.
echo "$0: finished `date`"

exit $?