sci-libs/hdf5: add unsupported useflag

  this will allow unsupported combinations of useflags such as MPI +
  CXX.

  link mpi when using mpi.

Closes: https://bugs.gentoo.org/710986
Closes: https://github.com/gentoo/gentoo/pull/14821
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>

2 files changed, 107 insertions, 0 deletions

diff --git a/sci-libs/hdf5/hdf5-1.10.5-r1.ebuild b/sci-libs/hdf5/hdf5-1.10.5-r1.ebuild
new file mode 100644
index 000000000000..ef906aa6eefc
--- /dev/null
+++ b/sci-libs/hdf5/hdf5-1.10.5-r1.ebuild
@@ -0,0 +1,106 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+
+FORTRAN_NEEDED="fortran"
+
+inherit autotools eutils fortran-2 flag-o-matic toolchain-funcs multilib prefix
+
+MY_P="${PN}-${PV/_p/-patch}"
+MAJOR_P="${PN}-$(ver_cut 1-2)"
+
+DESCRIPTION="General purpose library and file format for storing scientific data"
+HOMEPAGE="http://www.hdfgroup.org/HDF5/"
+SRC_URI="http://www.hdfgroup.org/ftp/HDF5/releases/${MAJOR_P}/${MY_P}/src/${MY_P}.tar.bz2"
+
+LICENSE="NCSA-HDF"
+SLOT="0/${PV%%_p*}"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="cxx debug examples fortran +hl mpi szip threads unsupported zlib"
+
+REQUIRED_USE="
+	!unsupported? (
+			?? ( cxx mpi )
+			threads? ( !cxx !mpi !fortran !hl )
+	)"
+RDEPEND="
+	mpi? ( virtual/mpi[romio] )
+	szip? ( virtual/szip )
+	zlib? ( sys-libs/zlib:0= )
+"
+DEPEND="${RDEPEND}
+	sys-devel/libtool:2
+	>=sys-devel/autoconf-2.69
+"
+S="${WORKDIR}/${MY_P}"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-1.8.9-static_libgfortran.patch"
+	"${FILESDIR}/${PN}-1.8.9-mpicxx.patch"
+	"${FILESDIR}/${PN}-1.8.13-no-messing-ldpath.patch"
+)
+
+pkg_setup() {
+	tc-export CXX CC AR # workaround for bug 285148
+	use fortran && fortran-2_pkg_setup
+
+	if use mpi; then
+		if has_version 'sci-libs/hdf5[-mpi]'; then
+			ewarn "Installing hdf5 with mpi enabled with a previous hdf5 with mpi disabled may fail."
+			ewarn "Try to uninstall the current hdf5 prior to enabling mpi support."
+		fi
+		export CC="mpicc"
+		use fortran && export FC="mpif90"
+		append-ldflags -lmpi
+	elif has_version 'sci-libs/hdf5[mpi]'; then
+		ewarn "Installing hdf5 with mpi disabled while having hdf5 installed with mpi enabled may fail."
+		ewarn "Try to uninstall the current hdf5 prior to disabling mpi support."
+	fi
+}
+
+src_prepare() {
+	# respect gentoo examples directory
+	sed \
+		-e "s:hdf5_examples:doc/${PF}/examples:g" \
+		-i $(find . -name Makefile.am) $(find . -name "run*.sh.in") || die
+	sed \
+		-e '/docdir/d' \
+		-i config/commence.am || die
+	if ! use examples; then
+		sed -e '/^install:/ s/install-examples//' \
+			-i Makefile.am || die #409091
+	fi
+	# enable shared libs by default for h5cc config utility
+	sed -i -e "s/SHLIB:-no/SHLIB:-yes/g" tools/src/misc/h5cc.in || die
+	hprefixify m4/libtool.m4
+
+	default
+	eautomake
+}
+
+src_configure() {
+	local myconf=(
+		--disable-static
+		--enable-deprecated-symbols
+		--enable-build-mode=$(usex debug debug production)
+		$(use_enable cxx)
+		$(use_enable debug codestack)
+		$(use_enable fortran)
+		$(use_enable hl)
+		$(use_enable mpi parallel)
+		$(use_enable threads threadsafe)
+		$(use_enable unsupported)
+		$(use_with szip szlib)
+		$(use_with threads pthread)
+		$(use_with zlib)
+	)
+	econf "${myconf[@]}"
+}
+
+src_install() {
+	default
+
+	# no static archives
+	find "${D}" -name '*.la' -delete || die
+}
diff --git a/sci-libs/hdf5/metadata.xml b/sci-libs/hdf5/metadata.xml
index 040542a30ae7..2fa4f45de1bb 100644
--- a/sci-libs/hdf5/metadata.xml
+++ b/sci-libs/hdf5/metadata.xml
@@ -13,5 +13,6 @@
 </longdescription>
   <use>
     <flag name="hl">Enable high level API (https://support.hdfgroup.org/HDF5/doc/HL/index.html)</flag>
+    <flag name="unsupported">Enable unsupported combinations of configuration options</flag>
   </use>
 </pkgmetadata>