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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-libs/nss/nss-3.12.10.ebuild,v 1.2 2011/07/31 14:29:19 anarchy Exp $

EAPI=3
inherit eutils flag-o-matic multilib toolchain-funcs

NSPR_VER="4.8.8"
RTM_NAME="NSS_${PV//./_}_RTM"
DESCRIPTION="Mozilla's Network Security Services library that implements PKI support"
HOMEPAGE="http://www.mozilla.org/projects/security/pki/nss/"
SRC_URI="ftp://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/${RTM_NAME}/src/${P}.tar.gz"

LICENSE="|| ( MPL-1.1 GPL-2 LGPL-2.1 )"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~x86-macos ~sparc-solaris ~x64-solaris ~x86-solaris"
IUSE="utils"

DEPEND="dev-util/pkgconfig"
RDEPEND=">=dev-libs/nspr-${NSPR_VER}
	>=dev-db/sqlite-3.5"

src_prepare() {
	# Custom changes for gentoo
	epatch "${FILESDIR}/${PN}-3.12.5-gentoo-fixups.diff"
	epatch "${FILESDIR}/${PN}-3.12.6-gentoo-fixup-warnings.patch"

	cd "${S}"/mozilla/security/coreconf
	# hack nspr paths
	echo 'INCLUDES += -I'"${EPREFIX}"'/usr/include/nspr -I$(DIST)/include/dbm' \
		>> headers.mk || die "failed to append include"

	# modify install path
	sed -e 's:SOURCE_PREFIX = $(CORE_DEPTH)/\.\./dist:SOURCE_PREFIX = $(CORE_DEPTH)/dist:' \
		-i source.mk

	# Respect LDFLAGS
	sed -i -e 's/\$(MKSHLIB) -o/\$(MKSHLIB) \$(LDFLAGS) -o/g' rules.mk

	# Ensure we stay multilib aware
	sed -i -e "s:gentoo\/nss:$(get_libdir):" "${S}"/mozilla/security/nss/config/Makefile || die "Failed to fix for multilib"

	# Fix pkgconfig file for Prefix
	sed -i -e "/^PREFIX =/s:= /usr:= ${EPREFIX}/usr:" \
		"${S}"/mozilla/security/nss/config/Makefile

	epatch "${FILESDIR}"/${PN}-3.12.4-solaris-gcc.patch  # breaks non-gnu tools
	# dirty hack
	cd "${S}"/mozilla/security/nss
	sed -i -e "/CRYPTOLIB/s:\$(SOFTOKEN_LIB_DIR):../freebl/\$(OBJDIR):" \
		lib/ssl/config.mk || die
	sed -i -e "/CRYPTOLIB/s:\$(SOFTOKEN_LIB_DIR):../../lib/freebl/\$(OBJDIR):" \
		cmd/platlibs.mk || die

	# Support Linux 3.0, bug #372001
	cd  "${S}"/mozilla/security/coreconf/
	ln -sf Linux2.6.mk Linux3.0.mk || die "failed to symlink Linux2.6.mk"
}

src_compile() {
	strip-flags

	echo > "${T}"/test.c
	$(tc-getCC) ${CFLAGS} -c "${T}"/test.c -o "${T}"/test.o
	case $(file "${T}"/test.o) in
	*64-bit*|*ppc64*|*x86_64*) export USE_64=1;;
	*32-bit*|*ppc*|*i386*) ;;
	*) die "Failed to detect whether your arch is 64bits or 32bits, disable distcc if you're using it, please";;
	esac

	export NSPR_INCLUDE_DIR=`nspr-config --includedir`
	export NSPR_LIB_DIR=`nspr-config --libdir`
	export BUILD_OPT=1
	export NSS_USE_SYSTEM_SQLITE=1
	export NSDISTMODE=copy
	export NSS_ENABLE_ECC=1
	export XCFLAGS="${CFLAGS}"
	export FREEBL_NO_DEPEND=1

	cd "${S}"/mozilla/security/coreconf
	emake -j1 CC="$(tc-getCC)" || die "coreconf make failed"
	cd "${S}"/mozilla/security/dbm
	emake -j1 CC="$(tc-getCC)" || die "dbm make failed"
	cd "${S}"/mozilla/security/nss
	emake -j1 CC="$(tc-getCC)" || die "nss make failed"
}

# Altering these 3 libraries breaks the CHK verification.
# All of the following cause it to break:
# - stripping
# - prelink
# - ELF signing
# http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn6.html
# Either we have to NOT strip them, or we have to forcibly resign after
# stripping.
#local_libdir="$(get_libdir)"
#export STRIP_MASK="
#	*/${local_libdir}/libfreebl3.so*
#	*/${local_libdir}/libnssdbm3.so*
#	*/${local_libdir}/libsoftokn3.so*"

export NSS_CHK_SIGN_LIBS="freebl3 nssdbm3 softokn3"

generate_chk() {
	local shlibsign="$1"
	local libdir="$2"
	einfo "Resigning core NSS libraries for FIPS validation"
	shift 2
	for i in ${NSS_CHK_SIGN_LIBS} ; do
		local libname=lib${i}.so
		local chkname=lib${i}.chk
		"${shlibsign}" \
			-i "${libdir}"/${libname} \
			-o "${libdir}"/${chkname}.tmp \
		&& mv -f \
			"${libdir}"/${chkname}.tmp \
			"${libdir}"/${chkname} \
		|| die "Failed to sign ${libname}"
	done
}

cleanup_chk() {
	local libdir="$1"
	shift 1
	for i in ${NSS_CHK_SIGN_LIBS} ; do
		local libfname="${libdir}/lib${i}.so"
		# If the major version has changed, then we have old chk files.
		[ ! -f "${libfname}" -a -f "${libfname}.chk" ] \
			&& rm -f "${libfname}.chk"
	done
}

src_install () {
	MINOR_VERSION=12
	cd "${S}"/mozilla/security/dist

	dodir /usr/$(get_libdir)
	cp -L */lib/*$(get_libname) "${ED}"/usr/$(get_libdir) || die "copying shared libs failed"
	# We generate these after stripping the libraries, else they don't match.
	#cp -L */lib/*.chk "${ED}"/usr/$(get_libdir) || die "copying chk files failed"
	cp -L */lib/libcrmf.a "${ED}"/usr/$(get_libdir) || die "copying libs failed"

	# Install nss-config and pkgconfig file
	dodir /usr/bin
	cp -L */bin/nss-config "${ED}"/usr/bin
	dodir /usr/$(get_libdir)/pkgconfig
	cp -L */lib/pkgconfig/nss.pc "${ED}"/usr/$(get_libdir)/pkgconfig

	# all the include files
	insinto /usr/include/nss
	doins public/nss/*.h
	cd "${ED}"/usr/$(get_libdir)
	local n=
	for file in *$(get_libname); do
		n=${file%$(get_libname)}$(get_libname ${MINOR_VERSION})
		mv ${file} ${n}
		ln -s ${n} ${file}
		if [[ ${CHOST} == *-darwin* ]]; then
			install_name_tool -id "${EPREFIX}/usr/$(get_libdir)/${n}" ${n} || die
		fi
	done

	local nssutils
	# Always enabled because we need it for chk generation.
	nssutils="shlibsign"
	if use utils; then
		# The tests we do not need to install.
		#nssutils_test="bltest crmftest dbtest dertimetest
		#fipstest remtest sdrtest"
		nssutils="addbuiltin atob baddbdir btoa certcgi certutil checkcert
		cmsutil conflict crlutil derdump digest makepqg mangle modutil multinit
		nonspr10 ocspclnt oidcalc p7content p7env p7sign p7verify pk11mode
		pk12util pp rsaperf selfserv shlibsign signtool signver ssltap strsclnt
		symkeyutil tstclnt vfychain vfyserv"
	fi
	cd "${S}"/mozilla/security/dist/*/bin/
	for f in $nssutils; do
		dobin ${f}
	done

	# Prelink breaks the CHK files. We don't have any reliable way to run
	# shlibsign after prelink.
	declare -a libs
	for l in ${NSS_CHK_SIGN_LIBS} ; do
		libs+=("${EPREFIX}/usr/$(get_libdir)/lib${l}.so")
	done
	OLD_IFS="${IFS}" IFS=":" ; liblist="${libs[*]}" ; IFS="${OLD_IFS}"
	echo -e "PRELINK_PATH_MASK=${liblist}" >"${T}/90nss"
	unset libs liblist
	doenvd "${T}/90nss"
}

pkg_postinst() {
	elog "We have reverted back to using upstreams soname."
	elog "Please run revdep-rebuild --library libnss3.so.12 , this"
	elog "will correct most issues. If you find a binary that does"
	elog "not run please re-emerge package to ensure it properly"
	elog " links after upgrade."
	elog
	# We must re-sign the libraries AFTER they are stripped.
	generate_chk "${EROOT}"/usr/bin/shlibsign "${EROOT}"/usr/$(get_libdir)
}

pkg_postrm() {
	cleanup_chk "${EROOT}"/usr/$(get_libdir)
}