gentoo-overlay/media-libs/libwebp/libwebp-0.4.2.ebuild

# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI=5
inherit eutils libtool multilib-minimal

DESCRIPTION="A lossy image compression format"
HOMEPAGE="https://developers.google.com/speed/webp/download"
SRC_URI="http://downloads.webmproject.org/releases/webp/${P}.tar.gz"

LICENSE="BSD"
SLOT="0/5" # subslot = libwebp soname version
KEYWORDS="~alpha amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sparc x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~x64-macos ~m68k-mint"
IUSE="experimental gif +jpeg opengl +png static-libs swap-16bit-csp tiff"

# TODO: dev-lang/swig bindings in swig/ subdirectory
RDEPEND="gif? ( media-libs/giflib:= )
	jpeg? ( virtual/jpeg:0= )
	opengl? (
		media-libs/freeglut
		virtual/opengl
		)
	png? ( media-libs/libpng:0= )
	tiff? ( media-libs/tiff:0= )"
DEPEND="${RDEPEND}"

ECONF_SOURCE=${S}

src_prepare() {
	# This is conflicting with `usex` later on, upstream is using ac_cv_ wrong
	# If modifying configure.ac, eautoreconf is required because of "Maintainer mode"
	sed -i -e '/unset ac_cv_header_GL_glut_h/d' configure || die

	# Fix libtool relinking, bug 499270.
	elibtoolize
}

multilib_src_configure() {
	# Only used for gif2webp binary wrt #486646
	local build_gif2webp=$(usex gif)
	multilib_is_native_abi || build_gif2webp=no

	ac_cv_header_gif_lib_h=${build_gif2webp} \
	ac_cv_header_jpeglib_h=$(usex jpeg) \
	ac_cv_header_png_h=$(usex png) \
	ac_cv_header_GL_glut_h=$(usex opengl) \
	ac_cv_header_tiffio_h=$(usex tiff) \
		econf \
			$(use_enable static-libs static) \
			$(use_enable swap-16bit-csp) \
			$(use_enable experimental) \
			--enable-libwebpmux \
			--enable-libwebpdemux \
			--enable-libwebpdecoder
}

multilib_src_install() {
	emake DESTDIR="${D}" install
}

multilib_src_install_all() {
	prune_libtool_files
	dodoc AUTHORS ChangeLog doc/*.txt NEWS README{,.mux}
}