#!/bin/sh
# 
# This script builds a Xtoolchain crosscompiler package
#
# useage: build.sh processor languages gcc-version libc-version [ headers-version ]
#
# To use it you must install Darwinports-1.1 (or later)
#
# Copyright by H. N. Schaller, Jan 2006
#

XTOOL=crosstool-0.42

export HERE=$PWD

if [ "$5" = "" ]
  then HDRS=""
  else HDRS="-hdrs-$5"
fi

export TARGET=$1

export GCC_LANGUAGES="$2"
export GCC_VERSION="$3"
export GLIBC_VERSION="$4"

export BUILD_GDIR="gcc-$GCC_VERSION-glibc-$GLIBC_VERSION"
export BUILD_CONF="$BUILD_GDIR$HDRS"
export RESULT_TOP="/opt/local/crosstool"
export RESULT_TARGET=$RESULT_TOP/$BUILD_GDIR/$TARGET

export TARBALLS_DIR="$HERE/downloads"

echo Building $XBUILD_NAME.
date

set -e

export PATH=$HERE/gnutools:/opt/local/bin:$RESULT_TOP/tools:$PATH	# make us find wget etc.

# allow to fetch files from the online-repositories

[ -r /opt/local/bin/wget ] || sudo /opt/local/bin/port install wget || exit 1

mkdir -p $HERE/gnutools $TARBALLS_DIR

sudo mkdir -p $RESULT_TOP
sudo chown $USER $RESULT_TOP


# install GNU tools and override through $PATH

[ -r gnutools/awk ] || ( sudo /opt/local/bin/port install gawk && ln -s /opt/local/bin/gawk gnutools/awk )
[ -r gnutools/sed ] || ( sudo /opt/local/bin/port install gsed && ln -s /opt/local/bin/gnused gnutools/sed )
[ -r gnutools/make ] || ( sudo /opt/local/bin/port install gmake && ln -s /opt/local/bin/gmake gnutools/make ) # /usr/bin/make has builtin-rule for .m.c: which conflicts with the sources of gprof
[ -r /opt/local/bin/msgfmt ] || sudo /opt/local/bin/port install gettext
[ -r gnutools/install ] || ( sudo /opt/local/bin/port install coreutils && ln -s /opt/local/bin/ginstall gnutools/install )

echo awk is: $(which awk)
echo sed is: $(which sed)
echo make is: $(which make)

# wrap Xcode as & ld so that they pretend to be the minimum required binutils
echo '[ "$1" = -v ] && echo GNU assembler 2.15 || /usr/bin/as $*' >gnutools/as
echo '[ "$1" = --version ] && echo GNU ld 2.15 || /usr/bin/ld $*' >gnutools/ld
chmod a+x gnutools/as
chmod a+x gnutools/ld

[ -r $TARBALLS_DIR/$XTOOL.tar.gz ] || wget -P $TARBALLS_DIR http://kegel.com/crosstool/$XTOOL.tar.gz
[ -r $XTOOL ] || tar -xzvf $TARBALLS_DIR/$XTOOL.tar.gz

# Local hack for buillding a armv5b target
brokentarg="armv5b-softfloat-linux"
[ $TARGET == $brokentarg -a ! -r $XTOOL/$brokentarg.dat ] \
    && mv $XTOOL/armv5b-softfloat.dat $XTOOL/$brokentarg.dat || true

(
    cd $XTOOL

    # Build the toolchain.  Takes a couple hours and a couple gigabytes - no not really that long and large.
    eval `cat $TARGET.dat $BUILD_CONF.dat` sh all.sh --notest

    file $RESULT_TARGET/tmp/*

    printf '#include <stdio.h>\nint main() { printf("Hello World! %lf", 3.0*5.0); }\n' >test.c
    $RESULT_TARGET/$TARGET/bin/gcc test.c
    ls -l a.out
    file a.out

    printf '#include <iostream>\nusing namespace std; int main() { cout << "Hello World!\\n"; return 0; }\n' >test.cpp
    $RESULT_TARGET/$TARGET/bin/gcc test.cpp -lstdc++
    ls -l a.out
    file a.out
)