sci-libs/p4est: add 2.3.6

This partially reverts commit 406d3fc821c6be208814445bc2ad98bed3c2e9b4
and bumps 2.3.3 to 2.3.6.

In turns out that libsc/p4est-2.8.5 has a massive performance regression
which necessitates to use the "stable" version 2.3.6. Thus, bring it
back into the tree.

Signed-off-by: Matthias Maier <tamiko@gentoo.org>

5 files changed, 150 insertions, 0 deletions

diff --git a/sci-libs/p4est/Manifest b/sci-libs/p4est/Manifest
index 0af4a2590156..9bd9ae0dc0a1 100644
--- a/sci-libs/p4est/Manifest
+++ b/sci-libs/p4est/Manifest
@@ -1,2 +1,4 @@
+DIST libsc-2.3.6.tar.gz 346618 BLAKE2B 6da88f1eec572a5d30ebef5e17554874e3d88d124fbbb7582092bd43a85a547f130a5406ffd40f86d564c95a3e600b2eb854ee0378b8e0c2d755a7d45d55ff1e SHA512 9037ebeebcf84d1dc3026172ee3fd3182729fbdbdadb478e8c05670b17bd3e2f3b192bac9a509bd99312c5f944a10fb7eb0636e8c7bd133b30677eb5ead6d117
+DIST p4est-2.3.6.tar.gz 2645384 BLAKE2B f6763e6a5b8b371eeead8a9d6481ea63e01ec5f13ea0dd9748aeaaec5551d39ac5d73f75f92275bfe61370e578ba1b1d0940c569e48fbd83997eaad4ab65b088 SHA512 99df91ee9d351cc889a532764096428e3f575c5f71199fca9f217c3dac5030a263308aa9c698476e7a12774d0751409f27e70ac2e9cd27847b2345b3f909b195
 DIST p4est-2.8.5.tar.gz 2721258 BLAKE2B 07fd70f5b7ce0d2dcdc0d913cd9ae7920272a0e459c7db7f9d180b592570a5232c7d2bd03547eec3333dcdc6fdc83adcce30c71eb9c44ab6e6b9b9a314707471 SHA512 22b5a9bbfb51e972f4b93a90f5fa0f9557770ccbe357044b5bb97b31d02783affef188cde38c86bb4ece31ba23ce47e4eb95a6e7c5f02d11549cf986e85f68a0
 DIST p4est-2.8.tar.gz 2655761 BLAKE2B 0637045bca3525d5d737010865c06d1273c6ecf848ab5ca55d1f19156550b7d7676c4f8d7c7a71b1fc70381dc7912cdca1e5405bb0af948180f75da1a3b1f343 SHA512 599faad177ce21f917e4ddfd969d6ef8c1f08b1e701cbdb9d4a1aa6dfd927176468afe757d018b9b7ded6a9ce165cd6fe78e0688b22cf6b9975cbd85d6f45d3c
diff --git a/sci-libs/p4est/files/p4est-2.3-fix_aclocal.patch b/sci-libs/p4est/files/p4est-2.3-fix_aclocal.patch
new file mode 100644
index 000000000000..a3209d5064fb
--- /dev/null
+++ b/sci-libs/p4est/files/p4est-2.3-fix_aclocal.patch
@@ -0,0 +1,12 @@
+diff --git a/Makefile.am b/Makefile.am
+index e8b7e67..1817e37 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -2,7 +2,6 @@
+ # This file is part of p4est.
+ # Makefile.am in toplevel directory
+ 
+-ACLOCAL_AMFLAGS = -I config @P4EST_SC_AMFLAGS@
+ if P4EST_SC_MK_USE
+ @P4EST_SC_MK_INCLUDE@
+ endif
diff --git a/sci-libs/p4est/files/p4est-2.3.6-override_soname.patch b/sci-libs/p4est/files/p4est-2.3.6-override_soname.patch
new file mode 100644
index 000000000000..40f032c109b7
--- /dev/null
+++ b/sci-libs/p4est/files/p4est-2.3.6-override_soname.patch
@@ -0,0 +1,13 @@
+diff --git a/src/Makefile.am b/src/Makefile.am
+index b30f0e3..2c636f9 100644
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -82,7 +82,7 @@ src_libp4est_la_SOURCES = \
+ src_libp4est_la_CPPFLAGS = $(AM_CPPFLAGS) $(P4EST_CPPFLAGS)
+ ## This is the official API versioning scheme of libtool.  Please see:
+ ## Read https://www.gnu.org/software/libtool/manual/libtool.html#Versioning
+-src_libp4est_la_LDFLAGS = -version-info 1:0:0
++src_libp4est_la_LDFLAGS = -release $(VERSION)
+ src_libp4est_la_LIBADD = @P4EST_SC_LDADD@
+ LDADD += src/libp4est.la @P4EST_SC_LDADD@
+ EXTRA_src_libp4est_la_DEPENDENCIES = @P4EST_SC_LDADD@
diff --git a/sci-libs/p4est/metadata.xml b/sci-libs/p4est/metadata.xml
index f29f22e517cb..c58dd131de04 100644
--- a/sci-libs/p4est/metadata.xml
+++ b/sci-libs/p4est/metadata.xml
@@ -17,6 +17,7 @@ processor cores.
 	</longdescription>
 	<use>
 		<flag name="vtk-binary">Enable binary vtk output. If disabled vtk files will be written in ASCII text format.</flag>
+		<flag name="romio">Build with support for the ROMIO MPI-IO component</flag>
 	</use>
 	<upstream>
 		<remote-id type="github">cburstedde/libsc</remote-id>
diff --git a/sci-libs/p4est/p4est-2.3.6.ebuild b/sci-libs/p4est/p4est-2.3.6.ebuild
new file mode 100644
index 000000000000..27b596c41c15
--- /dev/null
+++ b/sci-libs/p4est/p4est-2.3.6.ebuild
@@ -0,0 +1,122 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LUA_COMPAT=( lua5-{1..3} )
+
+inherit autotools flag-o-matic lua-single toolchain-funcs
+
+DESCRIPTION="Scalable Algorithms for Parallel Adaptive Mesh Refinement on Forests of Octrees"
+HOMEPAGE="http://www.p4est.org/"
+
+if [[ ${PV} = *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/cburstedde/${PN}.git"
+	EGIT_BRANCH="develop"
+	SRC_URI=""
+else
+	SRC_URI="
+		https://github.com/cburstedde/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz
+		https://github.com/cburstedde/libsc/archive/v${PV}.tar.gz -> libsc-${PV}.tar.gz"
+	KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="GPL-2+"
+SLOT="0"
+
+# TODO petsc
+IUSE="debug doc examples mpi openmp romio threads +vtk-binary"
+REQUIRED_USE="${LUA_REQUIRED_USE}
+	romio? ( mpi )"
+
+RDEPEND="${LUA_DEPS}
+	~sci-libs/libsc-${PV}[${LUA_SINGLE_USEDEP},mpi=,openmp=,romio=,threads=]
+	sys-apps/util-linux
+	virtual/blas
+	virtual/lapack
+	mpi? ( virtual/mpi[romio=] )"
+DEPEND="${RDEPEND}"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.3-fix_aclocal.patch
+	"${FILESDIR}"/${PN}-2.3.6-override_soname.patch
+)
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+	lua-single_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# Inject libsc to get  all parts of the build system...
+	if ! [[ ${PV} = *9999* ]]; then
+		rmdir "${S}/sc" || die "rmdir failed"
+		mv "${WORKDIR}/libsc-${PV}" "${S}/sc" || die "mv failed"
+	fi
+
+	# Inject a version number into the build system
+	echo "${PV}" > "${S}"/.tarball-version
+
+	AT_M4DIR="${WORKDIR}/${P}/config ${WORKDIR}/${P}/sc/config"
+	eautoreconf
+
+	sed -i \
+		"s/P4EST_SC_DIR\/etc/P4EST_SC_DIR\/share\/libsc/" \
+		"${S}"/configure || die "sed failed"
+
+	sed -i \
+		"s#lib/libsc\.la#$(get_libdir)/libsc\.so#" \
+		"${S}"/configure || die "sed failed"
+}
+
+src_configure() {
+	# avoid underlinkage
+	append-libs -lsc
+
+	local myeconfargs=(
+		--disable-static
+		$(use_enable debug)
+		$(use_enable mpi)
+		$(use_enable openmp)
+		$(use_enable romio mpiio)
+		$(use_enable threads pthread)
+		$(use_enable vtk-binary)
+		--with-blas="$($(tc-getPKG_CONFIG) --libs blas)"
+		--with-lapack="$($(tc-getPKG_CONFIG) --libs lapack)"
+		--with-sc="${ESYSROOT}/usr"
+	)
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	default
+
+	use doc && dodoc -r doc/*
+
+	if use examples
+	then
+		docinto examples
+		dodoc -r example/*
+		docompress -x /usr/share/doc/${PF}/examples
+	else
+		# Remove compiled example binaries in case of -examples:
+		rm -r "${ED}"/usr/bin || die "rm failed"
+	fi
+
+	# Fix wrong installation paths:
+	dodir /usr/share/p4est
+	mv "${ED}"/usr/share/data "${ED}"/usr/share/p4est/data || die "mv failed"
+	mv "${ED}"/etc/* "${ED}"/usr/share/p4est || die "mv failed"
+	rmdir "${ED}"/etc/ || die "rmdir failed"
+
+	# no static archives
+	find "${ED}" -name '*.la' -delete || die
+}