#! /bin/sh
#:! line starting with #:! are removed from this melt-cc-script.proto 
#:! -*- bash -*-
#    Copyright (C) 2008 Free Software Foundation, Inc.
#    Contributed by Basile Starynkevitch <basile@starynkevitch.net>
# 
# This file :MELT_SCRIPT: is part of GCC.
# 
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
# 
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.   If not see
# <http://www.gnu.org/licenses/>. 

#:! :MELT_CC: & :MELT_CFLAGS: &:MELT_HEADERDIR:  are substituted in the first 30 lines

melt_cc=":MELT_CC:"
melt_cflags=":MELT_CFLAGS:"
melt_headerdir=":MELT_HEADERDIR:"

if [ -n "$MELT_CC" ]; then
    melt_cc=$MELT_CC
fi

if [ -n "$MELT_EXTRACFLAGS" ]; then
    melt_cflags="$melt_cflags $MELT_EXTRACFLAGS"
fi

#set -x
## script invoked by cc1 with two arguments : the generated C source to compile
## and the naked (without suffix) dynamically-loadable stuff to generate

## for commodity, we pass -D -U -I to gcc, and -F to set the cflags,
## -C to set the compiler, and -x & -v for debugging and -n to omit
## line info, -d for dynamic object structures
while getopts "D:I:U:F:C:xvnd" flag ; do
    : the $flag 
    case "$flag" in
	D) melt_cflags="$melt_cflags -D$OPTARG";;
	U) melt_cflags="$melt_cflags -U$OPTARG";;
	I) melt_cflags="$melt_cflags -U$OPTARG";;
	F) melt_cflags="$melt_cflags $OPTARG";;
	C) melt_cc="$OPTARG";;
	n)  melt_cflags="$melt_cflags -DMELTGCC_NOLINENUMBERING";;
	d) melt_cflags="$melt_cflags -DMELTGCC_DYNAMIC_OBJSTRUCT";;
	x) set -x;;
	v) set -v;;
	*) echo unrecognized flag $flag;;
    esac
done
shift `expr $OPTIND - 1`

csource=$1
dynstuff=$2

case $dynstuff in
    *.so) nakedynstuff=`basename $dynstuff .so`;;
    *.sl) nakedynstuff=`basename $dynstuff .sl`;;
    *.la) nakedynstuff=`basename $dynstuff .la`;;
    *.lo) nakedynstuff=`basename $dynstuff .lo`;;
    *.shlib) nakedynstuff=`basename $dynstuff .shlib`;;
    *.dylib) nakedynstuff=`basename $dynstuff .dylib`;;
    *) nakedynstuff=`echo $dynstuff | sed 's/\.[a-z]*$//'`;;
esac

: ${TMPDIR=/tmp}

if which tempfile > /dev/null; then
    datf=`tempfile  -p bdat`
elif which mktemp > /dev/null; then
    datf=`mktemp -t bdat.XXXXXXXX`
else
    datf=$TMPDIR/bdat$$-$RANDOM
fi

rm -f $datf $datf.c $datf.*

pwd
echo melt_cc= $melt_cc melt_cflags= $melt_cflags melt_headerdir= $melt_headerdir  csource= $csource nakedynstuff= $nakedynstuff datf= $datf

# generate the temporary timestamp & md5s file
md5src=`md5sum $csource`     

trap "rm -f $datf.* $datf" EXIT

date "+const char basilys_compiled_timestamp[]=\"%c $csource\";" > $datf.c
echo "const char basilys_md5[]=\"$md5src\";" >> $datf.c

head $datf.c

case `uname` in
Linux|SunOS|Solaris) 
# we have temporarily a build of foo-n.so from foo.c without linenumbering
#	echo Compiling $csource without line numbering
#	time $melt_cc -Wall -fPIC -shared $melt_cflags -DMELTGCC_NOLINENUMBERING  -I "$melt_headerdir" $csource $datf.c -o $nakedynstuff-n.so
#	echo
	echo
	echo Compiling $csource with $melt_cflags
	time $melt_cc -Wall -fPIC -shared $melt_cflags -I "$melt_headerdir" $csource $datf.c -o $nakedynstuff.so
	echo
	echo
	ls -lt    $nakedynstuff.so  $csource
	;;
*) 
	libtool --mode=compile -prefer-pic $melt_cc $melt_cflags $csource  -I "$melt_headerdir" -o $nakedynstuff.lo;
	libtool --mode=compile -prefer-pic $melt_cc $melt_cflags $datf.c -o $datf.lo
	libtool --mode=link -module $melt_cc  $makedynstuff.lo $datf.lo -o  $nakedynstuff.la
	rm -f $datf.*
	;;
esac

echo done $0 $* '@@@@'
echo