sci-libs/hdf5: update EAPI 7 -> 8; drop back to autotools

Bug: https://github.com/HDFGroup/hdf5/issues/1814
Closes: https://bugs.gentoo.org/665378
Signed-off-by: Sam James <sam@gentoo.org>

3 files changed, 144 insertions, 0 deletions

diff --git a/sci-libs/hdf5/files/hdf5-1.12.2-no-messing-ldpath.patch b/sci-libs/hdf5/files/hdf5-1.12.2-no-messing-ldpath.patch
new file mode 100644
index 000000000000..b8585fc647f6
--- /dev/null
+++ b/sci-libs/hdf5/files/hdf5-1.12.2-no-messing-ldpath.patch
@@ -0,0 +1,20 @@
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -159,8 +159,6 @@ settings_DATA=libhdf5.settings
+ # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
+ # is set to ignore the error.
+ H5Tinit.c: H5detect$(EXEEXT)
+-	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
+-		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
+ 	$(RUNSERIAL) ./H5detect$(EXEEXT)  $@  ||                               \
+ 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
+ 	    ($(RM) $@ ; exit 1)
+@@ -171,8 +169,6 @@ H5Tinit.c: H5detect$(EXEEXT)
+ # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
+ # is set to ignore the error.
+ H5lib_settings.c: H5make_libsettings$(EXEEXT) libhdf5.settings
+-	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
+-		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
+ 	$(RUNSERIAL) ./H5make_libsettings$(EXEEXT)  $@  ||                               \
+ 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
+ 	    ($(RM) $@ ; exit 1)
diff --git a/sci-libs/hdf5/files/hdf5-1.12.2-no-strip-symbols.patch b/sci-libs/hdf5/files/hdf5-1.12.2-no-strip-symbols.patch
new file mode 100644
index 000000000000..0f3bf3981fa7
--- /dev/null
+++ b/sci-libs/hdf5/files/hdf5-1.12.2-no-strip-symbols.patch
@@ -0,0 +1,16 @@
+https://bugs.gentoo.org/665378
+--- a/configure.ac
++++ b/configure.ac
+@@ -2368,9 +2368,9 @@ case "X-$SYMBOLS" in
+     AC_MSG_RESULT([yes])
+     ;;
+   X-no)
+-    H5_CFLAGS="$H5_CFLAGS $NO_SYMBOLS_CFLAGS"
+-    H5_CXXFLAGS="$H5_CXXFLAGS $NO_SYMBOLS_CXXFLAGS"
+-    H5_FCFLAGS="$H5_FCFLAGS $NO_SYMBOLS_FCFLAGS"
++    H5_CFLAGS="$H5_CFLAGS"
++    H5_CXXFLAGS="$H5_CXXFLAGS"
++    H5_FCFLAGS="$H5_FCFLAGS"
+     AC_MSG_RESULT([no])
+     ;;
+   *)
diff --git a/sci-libs/hdf5/hdf5-1.12.2-r3.ebuild b/sci-libs/hdf5/hdf5-1.12.2-r3.ebuild
new file mode 100644
index 000000000000..1a00c0b61e8b
--- /dev/null
+++ b/sci-libs/hdf5/hdf5-1.12.2-r3.ebuild
@@ -0,0 +1,108 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+FORTRAN_NEEDED=fortran
+
+# We've reverted *back* to autotools from CMake because of
+# https://github.com/HDFGroup/hdf5/issues/1814.
+inherit autotools fortran-2 flag-o-matic toolchain-funcs 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="https://www.hdfgroup.org/HDF5/"
+SRC_URI="https://www.hdfgroup.org/ftp/HDF5/releases/${MAJOR_P}/${MY_P}/src/${MY_P}.tar.bz2"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="NCSA-HDF"
+SLOT="0/${PV%%_p*}"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="cxx debug examples fortran +hl mpi szip threads zlib"
+REQUIRED_USE="
+	cxx? ( !mpi ) mpi? ( !cxx )
+	threads? ( !cxx !mpi !fortran !hl )"
+
+RDEPEND="
+	mpi? ( virtual/mpi[romio] )
+	szip? ( virtual/szip )
+	zlib? ( sys-libs/zlib:0= )"
+DEPEND="${RDEPEND}"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.8.9-static_libgfortran.patch
+	"${FILESDIR}"/${PN}-1.12.2-no-messing-ldpath.patch
+	"${FILESDIR}"/${PN}-1.12.2-no-strip-symbols.patch
+)
+
+pkg_setup() {
+	# Workaround for bug 285148
+	tc-export CXX CC AR
+
+	use fortran && fortran-2_pkg_setup
+
+	if use mpi; then
+		if has_version 'sci-libs/hdf5[-mpi]'; then
+			ewarn "Installing hdf5 with mpi enabled with a previous hdf5 with mpi disabled may fail."
+			ewarn "Try to uninstall the current hdf5 prior to enabling mpi support."
+		fi
+
+		export CC=mpicc
+		use fortran && export FC=mpif90
+	elif has_version 'sci-libs/hdf5[mpi]'; then
+		ewarn "Installing hdf5 with mpi disabled while having hdf5 installed with mpi enabled may fail."
+		ewarn "Try to uninstall the current hdf5 prior to disabling mpi support."
+	fi
+}
+
+src_prepare() {
+	default
+
+	# Respect Gentoo examples directory
+	sed \
+		-e "s:hdf5_examples:doc/${PF}/examples:g" \
+		-i $(find . -name Makefile.am) $(find . -name "run*.sh.in") || die
+	sed \
+		-e '/docdir/d' \
+		-i config/commence.am || die
+
+	if ! use examples; then
+		# bug #409091
+		sed -e '/^install:/ s/install-examples//' \
+			-i Makefile.am || die
+	fi
+
+	# Enable shared libs by default for h5cc config utility
+	sed -i -e "s/SHLIB:-no/SHLIB:-yes/g" bin/h5cc.in || die
+	hprefixify m4/libtool.m4
+
+	eautoreconf
+}
+
+src_configure() {
+	# bug #686620
+	use sparc && tc-is-gcc && append-flags -fno-tree-ccp
+
+	econf \
+		--disable-static \
+		--enable-deprecated-symbols \
+		--enable-build-mode=$(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_with szip szlib) \
+		$(use_with threads pthread) \
+		$(use_with zlib)
+}
+
+src_install() {
+	emake DESTDIR="${D}" EPREFIX="${EPREFIX}" install
+
+	# No static archives
+	find "${ED}" -name '*.la' -delete || die
+}