gnustep-base/gnustep-base: add libressl support

Upstream recommends gnutls over openssl/libressl, the ebuild reflects that

Package-Manager: portage-2.2.24

gnustep-base/gnustep-base/gnustep-base-1.24.8-r1.ebuild

@@ -0,0 +1,88 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+inherit eutils gnustep-base
+
+DESCRIPTION="A library of general-purpose, non-graphical Objective C objects"
+HOMEPAGE="http://www.gnustep.org"
+SRC_URI="ftp://ftp.gnustep.org/pub/gnustep/core/${P}.tar.gz"
+
+LICENSE="GPL-2 LGPL-2.1"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~sparc-solaris ~x86-solaris"
+IUSE="+gnutls +icu +libffi libressl +ssl zeroconf"
+
+RDEPEND="${GNUSTEP_CORE_DEPEND}
+	>=gnustep-base/gnustep-make-2.6.0
+	ssl? (
+		gnutls? ( net-libs/gnutls )
+		!gnutls? (
+			!libressl? ( dev-libs/openssl:0= )
+			libressl? ( dev-libs/libressl:= )
+		)
+	)
+	>=dev-libs/openssl-0.9.7:=
+	icu? ( >=dev-libs/icu-4.0:= )
+	!libffi? ( dev-libs/ffcall
+		gnustep-base/gnustep-make[-native-exceptions] )
+	libffi? ( virtual/libffi )
+	>=dev-libs/libxml2-2.6
+	>=dev-libs/libxslt-1.1
+	>=dev-libs/gmp-4.1:=
+	>=sys-libs/zlib-1.2
+	zeroconf? ( net-dns/avahi )"
+DEPEND="${RDEPEND}
+	virtual/pkgconfig"
+
+pkg_pretend() {
+	if use ssl && use gnutls && use libressl ; then
+		ewarn "You have enabled both gnutls and libressl, but only"
+		ewarn "one provider can be active. Using gnutls!"
+	fi
+}
+
+src_configure() {
+	egnustep_env
+
+	local myconf
+	if use libffi ; then
+		myconf="--enable-libffi --disable-ffcall --with-ffi-include=$(pkg-config --variable=includedir libffi)"
+	else
+		myconf="--disable-libffi --enable-ffcall"
+	fi
+
+	if use ssl ; then
+		if use gnutls ; then
+			myconf="$myconf --enable-tls --disable-openssl"
+		else
+			myconf="$myconf --disable-tls --enable-openssl"
+		fi
+	else
+		myconf="$myconf --disable-tls --disable-openssl"
+	fi
+	myconf="$myconf $(use_enable icu)"
+	myconf="$myconf $(use_enable zeroconf)"
+	myconf="$myconf --with-xml-prefix=${EPREFIX}/usr"
+	myconf="$myconf --with-gmp-include=${EPREFIX}/usr/include --with-gmp-library=${EPREFIX}/usr/lib"
+	myconf="$myconf --with-default-config=${EPREFIX}/etc/GNUstep/GNUstep.conf"
+
+	econf $myconf
+}
+
+src_install() {
+	# We need to set LD_LIBRARY_PATH because the doc generation program
+	# uses the gnustep-base libraries.  Since egnustep_env "cleans the
+	# environment" including our LD_LIBRARY_PATH, we're left no choice
+	# but doing it like this.
+
+	egnustep_env
+	egnustep_install
+
+	if use doc ; then
+		export LD_LIBRARY_PATH="${S}/Source/obj:${LD_LIBRARY_PATH}"
+		egnustep_doc
+	fi
+	egnustep_install_config
+}