dev-python/psycopg: Bump to 2.7.4

Also fixes/works-around parallel Sphinx doc building issue.(Bug 646928)

Bug: https://bugs.gentoo.org/646928
Package-Manager: Portage-2.3.24, Repoman-2.3.6

dev-python/psycopg/Manifest

@@ -4,3 +4,4 @@ DIST psycopg2-2.6.2.tar.gz 376348 BLAKE2B 279f2fb905c3e3034d89535a8c1de3114ef87c
 DIST psycopg2-2.7.3.1.tar.gz 425069 BLAKE2B 4d34859c63217bad08374b0a8d03dbcba7711c1e8034eb106ba27211e85af148f51902e2d1b294e4c0ba4e798f4a64903d9d735605d09bbcb1d291ad23cfb4e0 SHA512 206d4cf62a091927daf4b734e0b3597399fc588cb738366711674fc06c39d68a682981bc4756c356d37c41caba49b5df2b915beace8670c190d7d41e374f1eb5
 DIST psycopg2-2.7.3.2.tar.gz 425107 BLAKE2B 47fe652d5e2e62c765150941d565b9ee896e221ae565e51745645f2723a0070481daf2f0d0d1a1fbd741b5b536c12cdf892becb4d5d4283a26cd324cd02c47c6 SHA512 38460369e339b16e433328e9bd6ccdbb4b03e41d40b9fb453a54513af4ec43f0a72dc795de6eb13d9618e1d5636991d3de7f619459b3f21d070798d497b2776f
 DIST psycopg2-2.7.3.tar.gz 425004 BLAKE2B df405ca5b5f5887fbd166523cafd5686a9148b313b7c30a85dbfc5dec42aff426505993f42a18d6d60569deb17a5748a858737a139d74943e66bce8bdd12beb3 SHA512 9e673f47190b12ab31e783a3d2b464231b933cc6ad4f12742c457020aab5db36b83829d84b4e63f793f5567e689081fd9479bfc4634b7bb08c7d873a3f42efc9
+DIST psycopg2-2.7.4.tar.gz 425331 BLAKE2B 9d256ea340e4bace53981596d9d42863ddc9c8c079579b0621d8043af34daade05b9cec5465c6b3990f537a4350d9cf60a43062a0aa34db1f39b336296b32d3f SHA512 e78db528a4d3b897e0d8d38755179082dacddfb2d10bda963fc3836548991eaa0d4c1b8f81b329b15f4e685046c39e6f2a352b6c47b1da42af3a262094233034

dev-python/psycopg/psycopg-2.7.4.ebuild

@@ -0,0 +1,68 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 python3_{4,5,6} )
+
+inherit distutils-r1 flag-o-matic
+
+MY_PN="${PN}2"
+MY_P="${MY_PN}-${PV}"
+
+DESCRIPTION="PostgreSQL database adapter for Python"
+HOMEPAGE="http://initd.org/psycopg/ https://pypi.org/project/psycopg2/"
+SRC_URI="mirror://pypi/${MY_PN:0:1}/${MY_PN}/${MY_P}.tar.gz"
+
+LICENSE="LGPL-3+"
+SLOT="2"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x86-solaris"
+IUSE="debug doc examples"
+
+RDEPEND=">=dev-db/postgresql-8.1:*"
+DEPEND="${RDEPEND}
+	doc? (
+		>=dev-python/pygments-2.2[${PYTHON_USEDEP}]
+		>=dev-python/sphinx-1.6[${PYTHON_USEDEP}]
+	)"
+
+RESTRICT="test"
+
+# Avoid using mxdatetime: https://bugs.gentoo.org/452028
+PATCHES=( "${FILESDIR}"/psycopg-2.7.3-avoid-mxdatetime.patch )
+
+S="${WORKDIR}/${MY_P}"
+
+python_compile() {
+	local CFLAGS=${CFLAGS} CXXFLAGS=${CXXFLAGS}
+
+	! python_is_python3 && append-flags -fno-strict-aliasing
+
+	distutils-r1_python_compile
+}
+
+python_prepare_all() {
+	if use debug; then
+		sed -i 's/^\(define=\)/\1PSYCOPG_DEBUG,/' setup.cfg || die
+	fi
+
+	distutils-r1_python_prepare_all
+}
+
+python_compile_all() {
+	use doc && emake -C doc/src -j1 html text
+}
+
+python_install_all() {
+	if use doc; then
+		dodoc -r doc/src/_build/html
+		dodoc doc/src/_build/text/*
+	fi
+
+	if use examples ; then
+	   dodoc -r examples
+	   docompress -x /usr/share/doc/${PF}/examples
+	fi
+
+	distutils-r1_python_install_all
+}