#!/bin/bash
ulimit -s unlimited
shopt -s extglob

# p2c.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <mozes@slackware.com>
# 15-Jul-2004
#
# Copyright 2008, 2009, 2010  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xvvf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-*/ || failextract
slackhousekeeping

find . -name "*.orig" | xargs rm --verbose

# Fix library paths:
sed -i -e "s#/lib #/lib${LIBDIRSUFFIX} #g" \
       -e "s#/lib\$#/lib${LIBDIRSUFFIX}#g" \
       -e "s#/lib/#/lib${LIBDIRSUFFIX}/#g" \
        $( grep -lr '/lib' * )

cd src

# Add includes to get rid of some warnings:
sed -e '/^#include <stdio.h>/ a #include <stdlib.h>' -i 'makeproto.c'
# expose conflicting declarations:
sed -e '/^#include "trans.h"/ i #include <unistd.h>' -i 'trans.c'
# Switch to built in link,unlink declarations:
sed -e '/^int u*n*link / s:^.*$:/* & */:g' -i 'trans.h'

# Switch from private to public build:
sed -e '/private version/,/^$/ s:^[A-Z]:#&:g' \
    -e '/public version/,/^$/ s:^#\([A-Z]\):\1:g' \
    -i 'Makefile'

make OPT="$SLKCFLAGS" || exit 1
make p2cc || exit 1

# Create package framework:
mkdir -p $PKG/usr/{include/p2c,bin,lib${LIBDIRSUFFIX}/p2c,man/man1}

# Install binaries:
install -m755 p2c p2cc $PKG/usr/bin

# Install libaries:
install -m644 libp2c.a $PKG/usr/lib${LIBDIRSUFFIX}/
install -m644 sys.p2crc loc.p2crc system.imp system.m2 turbo.imp string.pas \
              $PKG/usr/lib${LIBDIRSUFFIX}/p2c/

# Headers:
install -m644 p2c.h $PKG/usr/include/p2c/

# Install man pages:
install -m644 p2c.man  $PKG/usr/man/man1/p2c.1
install -m644 p2cc.man $PKG/usr/man/man1/p2cc.1

cd ..

# Copy documentation:
mkdir -p $PKG/usr/doc/$PKGNAM-${VERSION}
cp -a \
  README ftp.README \
  $PKG/usr/doc/$PKGNAM-${VERSION}
( cd src
  for file in HISTORY NOTES COPYING INSTALL ; do
    cp -fav $file $PKG/usr/doc/$PKGNAM-${VERSION}
  done )
cp -a src/README $PKG/usr/doc/$PKGNAM-${VERSION}/README.src
mkdir -vpm755 $PKG/usr/doc/p2c-${VERSION}/examples
( cd examples
  cp -fav Makefile README basic.doc basic.p cref.p e.p fact.p p2crc self.p $PKG/usr/doc/p2c-${VERSION}/examples )
# Fix examples Makefile:
sed -i "s#usr/lib#usr/lib${LIBDIRSUFFIX}#g" $PKG/usr/doc/$PKGNAM-${VERSION}/examples/Makefile
sed -i "s#../p2c#p2c#g" $PKG/usr/doc/$PKGNAM-${VERSION}/examples/Makefile
sed -i "s#../home/libp2c.a#/usr/lib${LIBDIRSUFFIX}/libp2c.a#g" $PKG/usr/doc/$PKGNAM-${VERSION}/examples/Makefile
sed -i "s#../home#/usr/include/p2c#g" $PKG/usr/doc/$PKGNAM-${VERSION}/examples/Makefile

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slack_delete_lafiles # delete usr/lib{,64}/*.la
#slackstriprpaths     # strip rpaths
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links