#!/bin/busybox sh
#
# Copyright (c) 2019 David Demelier <markand@malikania.fr>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#

PKGNAME=bzip2
PKGVERSION=1.0.6
PKGREVISION=1
PKGLICENSE="BSD"
PKGSUMMARY="data compression program and library"
PKGDOWNLOAD="https://downloads.sourceforge.net/$PKGNAME/$PKGNAME-$PKGVERSION.tar.gz"

: ${CC:=clang}
: ${CFLAGS:=-O2}

if [ "$(uname -m)" = "x86_64" ]; then
	CFLAGS="-fPIC $CFLAGS"
fi

build()
{
	rm -rf $PKGNAME-$PKGVERSION
	tar xvf $PKGNAME-$PKGVERSION.tar.gz
	cd $PKGNAME-$PKGVERSION

	patch -p1 < ../patch-CVE-2016-3189.patch
	patch -p0 < ../patch-fhs.patch
	sed -i -e 's/$(PREFIX)/$(DESTDIR)$(PREFIX)/g' Makefile
	make CC="$CC" CFLAGS="$CFLAGS" all
	make CC="$CC" CFLAGS="$CFLAGS" -f Makefile-libbz2_so all
	make install DESTDIR=$DESTDIR PREFIX=/
	install -D libbz2.so.$PKGVERSION $DESTDIR/lib/libbz2.so.$PKGVERSION
	ln -s libbz2.so.$PKGVERSION $DESTDIR/lib/libbz2.so
	ln -s libbz2.so.$PKGVERSION $DESTDIR/lib/libbz2.so.${PKGVERSION%.*}
	ln -s libbz2.so.$PKGVERSION $DESTDIR/lib/libbz2.so.${PKGVERSION%%.*}

	cd ..
	rm -rf $PKGNAME-$PKGVERSION
}