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# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/media-gfx/optipng/optipng-0.4.5.ebuild,v 1.9 2004/12/29 15:22:54 slarti Exp $
inherit eutils flag-o-matic
DESCRIPTION="Find the optimal compression settings for your png files"
SRC_URI="http://www.cs.toronto.edu/~cosmin/pngtech/optipng/${P}.tar.gz"
HOMEPAGE="http://www.cs.toronto.edu/~cosmin/pngtech/optipng/"
LICENSE="as-is"
SLOT="0"
KEYWORDS="x86 ~ppc alpha ~amd64"
IUSE="ext-png ext-zlib mmx"
DEPEND="ext-png? ( media-libs/libpng )
ext-zlib? ( sys-libs/zlib )
virtual/libc"
src_unpack() {
unpack ${A}
# optionally use the system binaries, rather than the bundled
# patched versions (some archs/configurations require patches
# not included here)
cd ${S}/src; epatch ${FILESDIR}/${PF}-more-makefile-options.diff
}
src_compile() {
cd ${S}/src
append-ldflags -lm
# use libpng's mmx makefile if requested
if use mmx; then
# do amd64/ia64 support mmx?
use x86 || ewarn "mmx flag set, but not on x86?"
usemmx=1
else
usemmx=0
fi
# only defined in bundled zlib
if use ext-zlib || use ext-png; then
append-flags -DZ_RLE=3
fi
export usemmx LDFLAGS
# some logic to decide which version to build...
if ! use ext-png; then
if ! use ext-zlib; then
# use the included patched zlib/libpng
einfo "Building ${PN} with bundled libraries..."
emake -f scripts/Makefile.gcc optipng
else
# use the system zlib.
einfo "Building ${PN} with bundled libpng..."
emake -f scripts/Makefile.gcc optipng-extzlib
fi
else
if use ext-zlib; then
# use the system zlib and libpng.
einfo "Building ${PN} without bundled libraries..."
emake -f scripts/Makefile.gcc optipng-allext
else
# use the system libpng.
einfo "Building ${PN} with bundled zlib..."
emake -f scripts/Makefile.gcc optipng-extpng
fi
fi
# some feedback everything went ok...
echo; ls -l optipng; size optipng
}
src_install() {
dobin ${S}/src/optipng
dodoc ${S}/doc/{CAVEAT,DESIGN,FEATURES,HISTORY,LICENSE,README,TODO,USAGE}
dohtml ${S}/doc/index.html
}
pkg_postinst() {
if use ext-zlib || use ext-png; then
ewarn "the ext-zlib and ext-png USE flags are designed for users"
ewarn "that require special modifications to libpng or zlib."
ewarn
ewarn "the bundled libraries are highly optimised specifically"
ewarn "for use with compressing png files, and should be used if"
ewarn "possible."
ewarn
ewarn "if you set these flags in error, please unset them and"
ewarn "re-merge ${PN}."
fi
}
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