exact-image-0.8.1-r3.ebuild

# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit eutils multilib toolchain-funcs

DESCRIPTION="A fast, modern and generic image processing library"
HOMEPAGE="http://www.exactcode.de/site/open_source/exactimage/"
SRC_URI="http://dl.exactcode.de/oss/${PN}/${P}.tar.bz2"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="expat jpeg lua openexr php perl png ruby swig tiff truetype X"

RDEPEND="x11-libs/agg[truetype]
	sys-libs/zlib
	expat? ( dev-libs/expat )
	jpeg? ( virtual/jpeg )
	lua? ( dev-lang/lua:0= )
	openexr? ( media-libs/openexr )
	php? ( dev-lang/php:* )
	perl? ( dev-lang/perl )
	png? ( >=media-libs/libpng-1.2.43 )
	ruby? ( dev-lang/ruby:* )
	tiff? ( media-libs/tiff )
	truetype? ( >=media-libs/freetype-2 )
	X? (
		x11-libs/libXext
		x11-libs/libXt
		x11-libs/libICE
		x11-libs/libSM
	)"
DEPEND="${RDEPEND}
	virtual/pkgconfig
	swig? ( dev-lang/swig )"

PATCHES=(
	"${FILESDIR}"/${PN}-0.7.5-libpng14.patch
	"${FILESDIR}"/${P}-libpng15.patch
	"${FILESDIR}"/${P}-gcc6.patch
)

src_prepare() {
	default

	# Respect user CFLAGS/CXXFLAGS.
	sed -i \
		-e '/C\(XX\)\?FLAGS =/s/-O2//' \
		-e "\$aCFLAGS += ${CFLAGS}\nCXXFLAGS += ${CXXFLAGS}" \
		Makefile || die

	# Show commands.  Use qualified CC/CXX.
	sed -i \
		-e '/^Q =/d' \
		-e '/^\t@echo /d' \
		-e "\$aCC:=$(tc-getCC)\nCXX:=$(tc-getCXX)" \
		build/bottom.make || die

	# The copied string fits exactly.  Use memcpy to reflect that a null
	# terminator is not needed.
	sed -i \
		-e 's/strcpy(\([^,]*\)\(,["a-zA-Z -]*\))/memcpy(\1\2, sizeof(\1))/' \
		codecs/tga.cc || die
}

src_configure() {
	# evas -> enlightenment overlay
	# bardecode -> protected by custom license
	# libungif -> not supported anymore
	# python -> allegedly not python3, but python2 only

	./configure \
		--prefix=/usr \
		--libdir=/usr/$(get_libdir) \
		$(use_with X x11) \
		$(use_with truetype freetype) \
		--without-evas \
		$(use_with jpeg libjpeg) \
		$(use_with tiff libtiff) \
		$(use_with png libpng) \
		--without-libungif \
		--without-jasper \
		$(use_with openexr) \
		$(use_with expat) \
		--without-lcms \
		--without-bardecode \
		$(use_with lua) \
		$(use_with swig) \
		$(use_with perl) \
		--without-python \
		$(use_with php) \
		$(use_with ruby) || die
}