diff --git a/dev-libs/nspr/nspr-4.7.4.ebuild b/dev-libs/nspr/nspr-4.7.4.ebuild
new file mode 100644
--- /dev/null
+++ b/dev-libs/nspr/nspr-4.7.4.ebuild
@@ -0,0 +1,89 @@
+# Copyright 1999-2009 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-libs/nspr/nspr-4.7.4.ebuild,v 1.7 2009/05/01 14:03:12 maekke Exp $
+
+inherit eutils multilib toolchain-funcs
+
+DESCRIPTION="Netscape Portable Runtime"
+HOMEPAGE="http://www.mozilla.org/projects/nspr/"
+SRC_URI="ftp://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v${PV}/src/${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"
+IUSE="ipv6 debug"
+
+DEPEND=">=dev-db/sqlite-3.5"
+RDEPEND="${DEPEND}"
+
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+	mkdir build inst
+	epatch "${FILESDIR}"/${PN}-4.6.1-config.patch
+	epatch "${FILESDIR}"/${PN}-4.6.1-config-1.patch
+	epatch "${FILESDIR}"/${PN}-4.6.1-lang.patch
+	epatch "${FILESDIR}"/${PN}-4.7.0-prtime.patch
+
+	# Respect LDFLAGS
+	sed -i -e 's/\$(MKSHLIB) \$(OBJS)/\$(MKSHLIB) \$(LDFLAGS) \$(OBJS)/g' \
+		mozilla/nsprpub/config/rules.mk
+}
+
+src_compile() {
+	cd "${S}"/build
+
+	echo > "${T}"/test.c
+	$(tc-getCC) -c "${T}"/test.c -o "${T}"/test.o
+	case $(file "${T}"/test.o) in
+		*64-bit*) myconf="${myconf} --enable-64bit";;
+		*32-bit*) ;;
+		*) die "Failed to detect whether your arch is 64bits or 32bits, disable distcc if you're using it, please";;
+	esac
+
+	if use ipv6; then
+		myconf="${myconf} --enable-ipv6"
+	fi
+
+	myconf="${myconf} --libdir=/usr/$(get_libdir)/nspr \
+		--enable-system-sqlite"
+
+	ECONF_SOURCE="../mozilla/nsprpub" econf \
+		$(use_enable debug) \
+		${myconf} || die "econf failed"
+	make CC="$(tc-getCC)" CXX="$(tc-getCXX)" || die
+}
+
+src_install () {
+	# Their build system is royally fucked, as usual
+	MINOR_VERSION=7
+	cd "${S}"/build
+	emake DESTDIR="${D}" install || die "emake install failed"
+
+	cd "${D}"/usr/$(get_libdir)/nspr
+	for file in *.so; do
+		mv ${file} ${file}.${MINOR_VERSION}
+		ln -s ${file}.${MINOR_VERSION} ${file}
+	done
+	# cope with libraries being in /usr/lib/nspr
+	dodir /etc/env.d
+	echo "LDPATH=/usr/$(get_libdir)/nspr" > "${D}/etc/env.d/08nspr"
+
+	# install nspr-config
+	dobin "${S}"/build/config/nspr-config
+
+	# create pkg-config file
+	insinto /usr/$(get_libdir)/pkgconfig/
+	doins "${S}"/build/config/nspr.pc
+
+	# Remove stupid files in /usr/bin
+	rm "${D}"/usr/bin/{prerr.properties,nspr.pc}
+}
+
+pkg_preinst() {
+	preserve_old_lib /usr/$(get_libdir)/nspr/lib{nspr,plc,plds}4.so.6
+}
+
+pkg_postinst() {
+	preserve_old_lib_notify /usr/$(get_libdir)/nspr/lib{nspr,plc,plds}4.so.6
+}