gentoo resync : 07.05.2021

21 files changed, 1065 insertions, 22 deletions

diff --git a/sci-libs/Manifest.gz b/sci-libs/Manifest.gz
index 71384d36696d..a5b0c8a0d985 100644
--- a/sci-libs/Manifest.gz
+++ b/sci-libs/Manifest.gz
diff --git a/sci-libs/gdal/Manifest b/sci-libs/gdal/Manifest
index f88dbb3a7ea1..512611200bdd 100644
--- a/sci-libs/gdal/Manifest
+++ b/sci-libs/gdal/Manifest
@@ -3,6 +3,8 @@ AUX gdal-2.3.0-curl.patch 323 BLAKE2B 19a89ac9ffed5716fe2c26234233045022a3bc262d
 AUX gdal-3.2.1-libdir.patch 20206 BLAKE2B 1b8c737246b25e8ea56855ec8cd41dc8bcc3ee575b02a6f13bd18dc062037e8f63848763fcb9a065c83d26ed510e341ee5ac9315d9b4c78ca3bb3a76f0098539 SHA512 da49eb9b42cd298b870afce6312e46ea81a41ffea7598b4cae579c846301b0179a7236ee6677fa7a2ff3c2da28eeb519d634667de973cf001f3ea8a08d4cebad
 DIST gdal-3.2.1.tar.gz 18953600 BLAKE2B b47994849bcf6bc2b2f53daabb85ef99cdc9ce2a06134bc591652bf7e5304d503701d2b07cae520ca71ad6238dd0b073d2034743e59b072fc5eb50c13bc143e6 SHA512 152dd97464a8242ea1da7a3a215b1d3326bab5aa4b0884fcab6880da460577c80075f87ea7b9513d796e899e98b40701c0b6a63f1e5275607905480ec547e688
 DIST gdal-3.2.2.tar.gz 18959415 BLAKE2B 001347ee12c72fe4d9cfa27adb427624f80e5b16eeca01510166e3d74c36eb00da72c27d8582ccda124151143561c29b8e59dc3dd800c474b77991417b33acd1 SHA512 d7ff8773d3f1cb894fce89f56a3d4355769f1113eefb1367a3a543ced750e2c42618a4a1deef3a338ddd4d33b7332ae962b2d793f8c0b97e31ed4b84cb2df2d5
+DIST gdal-3.2.3.tar.gz 18970990 BLAKE2B 9f2ac15b7e9d2df0393d15734030ec4777579aa01fcf2700958228b24fd50d574f3bd438c03e767549614a699c362b31f38cbb0f32ceb8056c9b55fab11ecfec SHA512 985a058a53f676f7d49a96d1a48d4f93c5da8548012bf81345afde03d8044022b210484290bca70c3d7a1ef3b0087d9e17c636b5badd1e0816c1f59b1bf21ee8
 EBUILD gdal-3.2.1-r1.ebuild 7498 BLAKE2B 9b79a2d74a5bfec4c52c655ab1dc1778add39a315855b6507f3d11ae43056c5530735cc56dc23b65f24fd591291f446f56ad78932691356637832194013b8204 SHA512 aa7ec568bd7c061cfc0e37030912b5ac2e4121ecb331953f03bd58c135d10dcc7bf24ecaa0a77c4597a1813e1feb0ed589657eab22363d04ca15bd0009921612
 EBUILD gdal-3.2.2.ebuild 7723 BLAKE2B 1223e7a57447dc0e948abe14863417b3dc4fbd3154b8e6b34e1eb9fa1a0adc3f2e5cd26e60f0333a19a456907f270baeab5b5c971d47b3be63626c55fa1122dd SHA512 502b3419bd6b3046733036cbe23d5b6aa277c32539c2a8819cb6b6b8a907cffa91eff81cdb75dfe7dfb5465871be4b49db8c7e631520689677c351933bf2b606
+EBUILD gdal-3.2.3.ebuild 7728 BLAKE2B 781ae5b6c49720232778e17c4f8e814961d4d14d3694cef31f19ab2d2b775fe376459aadc5e2dbb0bafda3ab31e99d667ee2805401ca28af03cdc610c477ad59 SHA512 d615affabf2762783d899264863297b5bae4e10956bdbb297f4aa0102298babbae0ab9400c0cecae1fd017f36787ce29b70d357e8ee3d6b471216291fb60a904
 MISC metadata.xml 1495 BLAKE2B 3d9f0cc3e5169eab7ff2c59b61d9fa5b4f8edf683f6e1447c40b1b0e8d81834e2d9fc13c68979c51a710f5aca5c9cd9a1f45a13c4e4ad0ded7a0fcdc1751d54b SHA512 cd0820bd5df06ccfb6315ab4586e49f72396115d08f318038dc3af2380a1896128ccf0ba46de0cc370546f7313907844907d6d75cc705a74bf4c78d0121afc3d
diff --git a/sci-libs/gdal/gdal-3.2.3.ebuild b/sci-libs/gdal/gdal-3.2.3.ebuild
new file mode 100644
index 000000000000..8f640dc7591f
--- /dev/null
+++ b/sci-libs/gdal/gdal-3.2.3.ebuild
@@ -0,0 +1,316 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+GENTOO_DEPEND_ON_PERL="no"
+PYTHON_COMPAT=( python3_{7,8,9} )
+DISTUTILS_OPTIONAL=1
+inherit autotools bash-completion-r1 distutils-r1 flag-o-matic java-pkg-opt-2 perl-module toolchain-funcs
+
+DESCRIPTION="Translator library for raster geospatial data formats (includes OGR support)"
+HOMEPAGE="https://gdal.org/"
+SRC_URI="https://download.osgeo.org/${PN}/${PV}/${P}.tar.gz"
+
+SLOT="0/3.2"
+LICENSE="BSD Info-ZIP MIT"
+KEYWORDS="~amd64 ~arm ~arm64 ~ia64 ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos"
+IUSE="armadillo +aux-xml curl cpu_flags_x86_avx cpu_flags_x86_sse cpu_flags_x86_ssse3 debug doc fits geos gif gml hdf5 java jpeg jpeg2k lzma mdb mysql netcdf odbc ogdi opencl oracle pdf perl png postgres python spatialite sqlite threads webp xls zstd"
+
+REQUIRED_USE="
+	mdb? ( java )
+	python? ( ${PYTHON_REQUIRED_USE} )
+	spatialite? ( sqlite )
+"
+
+BDEPEND="
+	virtual/pkgconfig
+	doc? ( app-doc/doxygen )
+	java? (
+		dev-java/ant-core
+		dev-lang/swig:0
+		>=virtual/jdk-1.8:*
+	)
+	perl? ( dev-lang/swig:0 )
+	python? (
+		dev-lang/swig:0
+		dev-python/setuptools[${PYTHON_USEDEP}]
+	)
+"
+DEPEND="
+	dev-libs/expat
+	dev-libs/json-c:=
+	dev-libs/libpcre
+	dev-libs/libxml2:2
+	dev-libs/openssl:=
+	media-libs/tiff
+	>=sci-libs/libgeotiff-1.5.1-r1:=
+	>=sci-libs/proj-6.0.0:=
+	sys-libs/zlib[minizip(+)]
+	armadillo? ( sci-libs/armadillo:=[lapack] )
+	curl? ( net-misc/curl )
+	fits? ( sci-libs/cfitsio:= )
+	geos? ( >=sci-libs/geos-3.8.0 )
+	gif? ( media-libs/giflib:= )
+	gml? ( >=dev-libs/xerces-c-3.1 )
+	hdf5? ( >=sci-libs/hdf5-1.6.4:=[szip] )
+	jpeg? ( virtual/jpeg:0= )
+	jpeg2k? ( media-libs/openjpeg:2= )
+	lzma? ( || (
+		app-arch/xz-utils
+		app-arch/lzma
+	) )
+	mdb? ( dev-java/jackcess:1 )
+	mysql? ( virtual/mysql )
+	netcdf? ( sci-libs/netcdf:= )
+	odbc? ( dev-db/unixODBC )
+	ogdi? ( sci-libs/ogdi )
+	opencl? ( virtual/opencl )
+	oracle? ( dev-db/oracle-instantclient:= )
+	pdf? ( app-text/poppler:= )
+	perl? ( dev-lang/perl:= )
+	png? ( media-libs/libpng:0= )
+	postgres? ( >=dev-db/postgresql-8.4:= )
+	python? (
+		${PYTHON_DEPS}
+		dev-python/numpy[${PYTHON_USEDEP}]
+	)
+	spatialite? ( dev-db/spatialite )
+	sqlite? ( dev-db/sqlite:3 )
+	webp? ( media-libs/libwebp:= )
+	xls? ( dev-libs/freexl )
+	zstd? ( app-arch/zstd:= )
+"
+RDEPEND="${DEPEND}
+	java? ( >=virtual/jre-1.8:* )
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-2.2.3-soname.patch"
+	"${FILESDIR}/${PN}-2.3.0-curl.patch" # bug 659840
+	"${FILESDIR}/${PN}-3.2.1-libdir.patch"
+)
+
+src_prepare() {
+	default
+
+	# Drop a --prefix hack in the upstream build system
+	# We don't want the line at all, so let's just drop it rather than
+	# trying to put in the right libdir value.
+	# bug #696106
+	sed -e '/\$ADD_PREFIX\/lib/d' \
+		-i configure.ac || die
+
+	sed -e "s: /usr/: \"${EPREFIX}\"/usr/:g" \
+		-i configure.ac || die
+
+	sed -e 's:^ar:$(AR):g' \
+		-i ogr/ogrsf_frmts/sdts/install-libs.sh || die
+
+	# SWIG: Use of the include path to find the input file is deprecated and will not work with ccache.
+	sed -e "s: gdal_array.i: ../include/gdal_array.i:" \
+		-i swig/python/GNUmakefile || die "sed python makefile failed"
+
+	# autoconf 2.70+
+	# bug #775209
+	config_rpath_update .
+
+	eautoreconf
+}
+
+src_configure() {
+	local myconf=(
+		# charls - not packaged in Gentoo ebuild repository
+		# kakadu, mrsid jp2mrsid - another jpeg2k stuff, ignore
+		# bsb - legal issues
+		# ingres - same story as oracle oci
+		# jasper - disabled because unmaintained and vulnerable; openjpeg will be used as JPEG-2000 provider instead
+		# podofo - we use poppler instead they are exclusive for each other
+		# tiff is a hard dep
+		--includedir="${EPREFIX}"/usr/include/${PN}
+		--disable-lto
+		--disable-static
+		--disable-driver-bsb
+		--disable-driver-mrf
+		--disable-pdf-plugin
+		--enable-shared
+		--enable-driver-grib
+		--with-bash-completion="$(get_bashcompdir)"
+		--with-cpp14
+		--with-crypto
+		--with-cryptopp=no
+		--with-expat
+		--with-geotiff
+		--with-gnm
+		--with-hide-internal-symbols
+		--with-libjson-c="${EPREFIX}"/usr
+		--with-libtiff
+		--with-libtool
+		--with-libz="${EPREFIX}"/usr
+		--without-charls
+		--without-dods-root
+		--without-ecw
+		--without-epsilon
+		--without-fgdb
+		--without-fme
+		--without-gta
+		--without-grass
+		--without-hdf4
+		--without-idb
+		--without-ingres
+		--without-jasper
+		--without-jp2lura
+		--without-jp2mrsid
+		--without-kakadu
+		--without-kea
+		--without-libkml
+		--without-mongocxx
+		--without-mrsid
+		--without-mrsid_lidar
+		--without-msg
+		--without-rasdaman
+		--without-rasterlite2
+		--without-pcraster
+		--without-pdfium
+		--without-perl
+		--without-podofo
+		--without-python
+		--without-qhull
+		--without-sfcgal
+		--without-sosi
+		--without-teigha
+		$(use_enable debug)
+		$(use_with armadillo)
+		$(use_with aux-xml pam)
+		$(use_with curl)
+		$(use_with cpu_flags_x86_avx avx)
+		$(use_with cpu_flags_x86_sse sse)
+		$(use_with cpu_flags_x86_ssse3 ssse3)
+		$(use_with fits cfitsio)
+		$(use_with geos)
+		$(use_with gif)
+		$(use_with gml xerces)
+		$(use_with hdf5)
+		$(use_with jpeg pcidsk) # pcidsk is internal, because there is no such library released developer by gdal
+		$(use_with jpeg)
+		$(use_with jpeg2k openjpeg)
+		$(use_with lzma liblzma)
+		$(use_with mysql mysql "${EPREFIX}"/usr/bin/mysql_config)
+		$(use_with netcdf)
+		$(use_with oracle oci)
+		$(use_with odbc)
+		$(use_with ogdi ogdi "${EPREFIX}"/usr)
+		$(use_with opencl)
+		$(use_with pdf poppler)
+		$(use_with png)
+		$(use_with postgres pg)
+		$(use_with spatialite)
+		$(use_with sqlite sqlite3 "${EPREFIX}"/usr)
+		$(use_with threads)
+		$(use_with webp)
+		$(use_with xls freexl)
+		$(use_with zstd)
+	)
+
+	tc-export AR RANLIB
+
+	if use java; then
+		myconf+=(
+			--with-java=$(java-config --jdk-home 2>/dev/null)
+			--with-jvm-lib=dlopen
+			$(use_with mdb)
+		)
+	else
+		myconf+=( --without-java --without-mdb )
+	fi
+
+	if use sqlite; then
+		append-libs -lsqlite3
+	fi
+
+	# bug #632660
+	if use ogdi; then
+		append-cflags $($(tc-getPKG_CONFIG) --cflags libtirpc)
+		append-cxxflags $($(tc-getPKG_CONFIG) --cflags libtirpc)
+	fi
+
+	ECONF_SOURCE="${S}" econf "${myconf[@]}"
+
+	# mysql-config puts this in (and boy is it a PITA to get it out)
+	if use mysql; then
+		sed -e "s: -rdynamic : :" \
+			-i GDALmake.opt || die "sed LIBS failed"
+	fi
+}
+
+src_compile() {
+	if use perl; then
+		rm "${S}"/swig/perl/*_wrap.cpp || die
+		emake -C "${S}"/swig/perl generate
+	fi
+
+	# gdal-config needed before generating Python bindings
+	default
+
+	if use java; then
+		pushd "${S}"/swig/java > /dev/null || die
+		emake
+		popd > /dev/null || die
+	fi
+
+	if use perl; then
+		pushd "${S}"/swig/perl > /dev/null || die
+		perl-module_src_configure
+		perl-module_src_compile
+		popd > /dev/null || die
+	fi
+
+	if use python; then
+		rm -f "${S}"/swig/python/*_wrap.cpp || die
+		emake -C "${S}"/swig/python generate
+		pushd "${S}"/swig/python > /dev/null || die
+		distutils-r1_src_compile
+		popd > /dev/null || die
+	fi
+
+	use doc && emake docs
+}
+
+src_install() {
+	local DOCS=( NEWS )
+	use doc && local HTML_DOCS=( html/. )
+
+	default
+
+	use java && java-pkg_dojar "${S}"/swig/java/gdal.jar
+
+	if use perl; then
+		pushd "${S}"/swig/perl > /dev/null || die
+		myinst=( DESTDIR="${D}" )
+		perl-module_src_install
+		popd > /dev/null || die
+		perl_delete_localpod
+	fi
+
+	if use python; then
+		# Don't clash with gdal's docs
+		unset DOCS HTML_DOCS
+
+		pushd "${S}"/swig/python > /dev/null || die
+		distutils-r1_src_install
+		popd > /dev/null || die
+
+		newdoc swig/python/README.rst README-python.rst
+
+		insinto /usr/share/${PN}/samples
+		doins -r swig/python/samples/.
+	fi
+
+	doman "${S}"/man/man*/*
+	find "${ED}" -name '*.la' -type f -delete || die
+}
+
+pkg_postinst() {
+	elog "Check available image and data formats after building with"
+	elog "gdalinfo and ogrinfo (using the --formats switch)."
+}
diff --git a/sci-libs/libqalculate/Manifest b/sci-libs/libqalculate/Manifest
index 3752f840291a..a12b16166638 100644
--- a/sci-libs/libqalculate/Manifest
+++ b/sci-libs/libqalculate/Manifest
@@ -1,5 +1,5 @@
-DIST libqalculate-3.16.1.tar.gz 1756176 BLAKE2B b09e06a4d89249bb3e38a47ed47acc7598bc62e966673a1eb175641b1018021199dbbcd38266301ec8b2d3c55747378adfde3db4e25e58771be162905cb493dc SHA512 3cc7ba66493252015b9d33835188c236b10afdce5f23021a5e686609609265aed81d592815ee6a172c269a0f144a3203c954435fea8ddb82637453d5c98cd05a
 DIST libqalculate-3.17.0.tar.gz 1770500 BLAKE2B 247c74db32e63437c556dd60f00f56acf53d9ba90ea1027b34b98b455215e6c03e3ee34116b6d3989fa43b449e18b6f2ebaed67f9dff36f08dd8b38c685c6586 SHA512 b204dc44b6fdb2b72d3c85840fee38482db071f0f8241420ea24093dcdcc377c66f516c571827fbede40237618a53153a75bb7afee7f3bee7a1a71aedd779a11
-EBUILD libqalculate-3.16.1.ebuild 1424 BLAKE2B dff87b194a2a34a0711c7b0b8f50d7e46f57b90869a2706d8aa7991440b56db8c92e54eb6265dfd4edf5086a058d53be87e3c0d1c553e13b9c2d27682efb707a SHA512 dc38abad377639192c9f276a1cf86847463b1ffe5fc35aef15b4d5d6e68f46af6dd6950f8127b1c091ce649dc5dd8fc6010333532ff493344727dd11e726b469
+DIST libqalculate-3.18.0.tar.gz 1788899 BLAKE2B 7701dab4d11c9d54f95454cd7be530cfa9f5a8dbe438dac6d734c294ce1eb5be1f4fdb30ef6d041d19f389df88dce4fa7dea68d555ad441992498685bfb3b919 SHA512 37d870f6fd147745747ac971758a512e85e33c42605b99ac4ba68b53ca42a6f0da7ede3869fe3ea4e47d77961e826ad999e0f0c0d87039042563f124bea1250e
 EBUILD libqalculate-3.17.0.ebuild 1424 BLAKE2B dff87b194a2a34a0711c7b0b8f50d7e46f57b90869a2706d8aa7991440b56db8c92e54eb6265dfd4edf5086a058d53be87e3c0d1c553e13b9c2d27682efb707a SHA512 dc38abad377639192c9f276a1cf86847463b1ffe5fc35aef15b4d5d6e68f46af6dd6950f8127b1c091ce649dc5dd8fc6010333532ff493344727dd11e726b469
+EBUILD libqalculate-3.18.0.ebuild 1430 BLAKE2B 5ad7454423b04634dba7f119e0626a16b0a1eb84b5652293ce60a2f42c6c89faddd599deb68ee8ccdd1efaebb49f492b960762d6b298057a94a4f30e062f06f5 SHA512 fa4967817bd224a292a93ff1b0c698180f9de41fc374c1c6f9dab2654f5705d21435d8fd49a1214cf47cc669106fa53f93b6c178846ed54e2cc2d7a393aa206f
 MISC metadata.xml 412 BLAKE2B bec97c9946830a88d871c0a27f06ff42a2ed252971f616f43f4c0cfa9617ea46565153c41c2aabea921b694c6a665a097635fdcf5dd82387dc60445e14657427 SHA512 3e011ceae845d6f233e86f7d39eb4460f561720312d8a0696b87672251cf46138228ae678ab63459280dd36fda3f9f8f302d9259e49acd6606fe2e66126bffb9
diff --git a/sci-libs/libqalculate/libqalculate-3.16.1.ebuild b/sci-libs/libqalculate/libqalculate-3.18.0.ebuild
index 35672fd3c7e3..94aa33f3f886 100644
--- a/sci-libs/libqalculate/libqalculate-3.16.1.ebuild
+++ b/sci-libs/libqalculate/libqalculate-3.18.0.ebuild
@@ -9,7 +9,7 @@ SRC_URI="https://github.com/Qalculate/${PN}/releases/download/v${PV}/${P}.tar.gz
 
 LICENSE="GPL-2"
 SLOT="0/21"
-KEYWORDS="~alpha amd64 ~arm arm64 ~hppa ~ia64 ppc ppc64 sparc x86 ~amd64-linux ~x86-linux"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux"
 IUSE="curl icu gnuplot readline"
 
 DEPEND="
diff --git a/sci-libs/matio/Manifest b/sci-libs/matio/Manifest
index c7a36d9ebac7..3f2f081eb03d 100644
--- a/sci-libs/matio/Manifest
+++ b/sci-libs/matio/Manifest
@@ -1,3 +1,5 @@
 DIST matio-1.5.19.tar.gz 10108869 BLAKE2B db641bda8d68e203af765aa83ecf661e011995e242c4f91aacb4bcc8ba2b545c36a3eec3f4954b3d7ecc286e630acd15b34ec48b372063bfb8b892259fc49ec7 SHA512 c087944a7d87d78a7de662d7e19f5f81c55858cf5bf315c28d5a0f7544555b0816045e20bb0c83752eb3d54b589d9237a27cf3de98e3ebefcc7ea0af9311740e
+DIST matio-1.5.21.tar.gz 10110430 BLAKE2B 1c43d44e69b28eacd9cc672a393df6a55c4ea0e06334eace9058b45bb0bd1582d43cafd30ad121bad33ad29dda52d5259be8c38f6cbacdb05a47da3644dfb984 SHA512 b00bcad807e6a7e10afa656eb77a0e3e9fb08d9cecc3e94ba41ef91ce60367d6686e6d387a874bbb83eb2f895d4a97caac554a70e7f5f6f5cb750052702d411c
 EBUILD matio-1.5.19.ebuild 966 BLAKE2B 7bfd290e52e38a2805caad4580b1c5400c2c7ab9df3081347e82a5e055337808a408a16f7395b88d2c7a00cdbeb7cdfaa639bc29ef6b3140c3e74aaafb2ae7c7 SHA512 047f6456e2954383b004cabdf8c4e20684188714fc65e266ca4c9cdcc4375273db6d5e1ee059660a6059752e3d48c5c035d73f0fa6c28debd272c1fe5ae28834
+EBUILD matio-1.5.21.ebuild 966 BLAKE2B 7bfd290e52e38a2805caad4580b1c5400c2c7ab9df3081347e82a5e055337808a408a16f7395b88d2c7a00cdbeb7cdfaa639bc29ef6b3140c3e74aaafb2ae7c7 SHA512 047f6456e2954383b004cabdf8c4e20684188714fc65e266ca4c9cdcc4375273db6d5e1ee059660a6059752e3d48c5c035d73f0fa6c28debd272c1fe5ae28834
 MISC metadata.xml 591 BLAKE2B f3e23baf2a3e7bd304987be8296034faf78988c95b4d9fbb9eedc7e8cc6efa0c1479a4ed48ecc10d9b0aee6c92603f4436e8d6b34811b227e86a5f822f47adf3 SHA512 d6f20bbc3bff29f3d163909acb1aa6f3cc6557c5717c3ee9771ef17fbd14fe17836f26c2b2dc4defb4223cdeb5b978ef13c4d4a294a1ac11f0559e2518d58009
diff --git a/sci-libs/matio/matio-1.5.21.ebuild b/sci-libs/matio/matio-1.5.21.ebuild
new file mode 100644
index 000000000000..adb63f7b65e3
--- /dev/null
+++ b/sci-libs/matio/matio-1.5.21.ebuild
@@ -0,0 +1,46 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+DESCRIPTION="Library for reading and writing matlab files"
+HOMEPAGE="https://sourceforge.net/projects/matio/"
+SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz"
+
+LICENSE="BSD-2"
+SLOT="0/11" # subslot = soname version
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="doc examples hdf5 sparse"
+
+RDEPEND="
+	sys-libs/zlib
+	hdf5? ( sci-libs/hdf5:= )"
+DEPEND="${RDEPEND}"
+BDEPEND="doc? ( virtual/latex-base )"
+
+src_configure() {
+	econf \
+		--disable-static \
+		$(use_enable hdf5 mat73) \
+		$(use_enable sparse extended-sparse)
+}
+
+src_compile() {
+	default
+	use doc && emake -C documentation pdf
+}
+
+src_install() {
+	default
+	use doc && dodoc documentation/matio_user_guide.pdf
+
+	if use examples; then
+		docinto examples
+		dodoc test/test*.c
+		insinto /usr/share/${PN}
+		doins share/test*
+	fi
+
+	# no static archives
+	find "${ED}" -name "*.la" -delete || die
+}
diff --git a/sci-libs/openblas/Manifest b/sci-libs/openblas/Manifest
index ad0584916b0f..f3cfdc4f20f2 100644
--- a/sci-libs/openblas/Manifest
+++ b/sci-libs/openblas/Manifest
@@ -5,7 +5,9 @@ AUX shared-blas-lapack.patch 5557 BLAKE2B 1e41b18e5a9c12eec9283c835e9b09e4ca89c6
 DIST openblas-0.3.12.tar.gz 12325103 BLAKE2B 3d6706e59e83f87dd58b287753bf697de99e83c8a4484453f120d8f8c9c69ea5b481a143db04342a1dcb1779ce548a49618cf4941d08d636e12ed481305e8fb5 SHA512 1ff5a065c41f7e460857f8428fc77900b189f051fa8129eea9ae93237f234d387cc1c6e627c2c95636164f512d4d721d4229729f04a04e8d5f655abbf5463d98
 DIST openblas-0.3.13.tar.gz 12437434 BLAKE2B d8f9d3296506c6148cd506278f0b6a2a4fe50975a7fd3f54108e98e88a13002b1035f5697322ba73df7c6397faee6d0772c1d4d46b66db8e862f17b980dbdf97 SHA512 86e7f496587cc35d7feede99cbe3cf627ef690dd7489bb03b95f7d15ed758e32baf17d79f17b1de187184394233f60a8249a64dd53c3d59a9540db92269b7ee4
 DIST openblas-0.3.14.tar.gz 12460465 BLAKE2B 9505ff6e132581ecc86159fb84192c6bbce0f2974293eaf1b4aca6b96b5da85823bfc1bced65a96930674fd4781ea3e375aed09cbdc9930cef26694c9f8e1c80 SHA512 c7d5947ada525a32bc6e97ff94272df9730fa5fb06102e06e80472baedc1a9119d82050cdaede192db15f816ae7143784d7801b61b64fab5b5cf97cdbd5e625e
+DIST openblas-0.3.15.tar.gz 12498434 BLAKE2B acf3d15e002686bcd84323616387dcf540b58d57392a4862cb556da58d873a8c40783fc4fdae45170aeb204ede3451843c44e3f5e264f76c9a7486b30b3f4cc7 SHA512 c07964ead5ffe9cf088364697bfe5cb409170663e420bdcd08a6366a028625d2a3c23ee4ddbaf0e625860a9fd08cbbb39f97eb985c366c052696d6f8598a844f
 EBUILD openblas-0.3.12-r1.ebuild 5733 BLAKE2B b272b29e82e16ba4a47e16e78d97e4049dec58fddee0cad16d963012ef6344772f3661751ae796b6f28247172edd94d5db2b1eb3d84e195ec617f447d02b1b15 SHA512 3794725cf6daedb442892fe8971303d6d6fde25f0d55aec63f2ce7c8c5ffdb2cf48640a96d6f2ca839590bd1de1321e382ec47c4545cecef8573b9030d5ed692
 EBUILD openblas-0.3.13.ebuild 5734 BLAKE2B f2d4bde48b206c4d6e97029b617f0538978144b0e3e239cf79837bf6e1525dbe398a0d3af121368299752646217e3cd3e29c4f3d1e4e549fcb9ce9c1598c5f25 SHA512 846370655b16dbc45a518374e4c1714eb135a6fab2c36059c602ee4dc236b952eba54123e536a07b484d994a68f26b94ac740ef7f645083c0ccb855492195627
 EBUILD openblas-0.3.14.ebuild 5733 BLAKE2B b272b29e82e16ba4a47e16e78d97e4049dec58fddee0cad16d963012ef6344772f3661751ae796b6f28247172edd94d5db2b1eb3d84e195ec617f447d02b1b15 SHA512 3794725cf6daedb442892fe8971303d6d6fde25f0d55aec63f2ce7c8c5ffdb2cf48640a96d6f2ca839590bd1de1321e382ec47c4545cecef8573b9030d5ed692
+EBUILD openblas-0.3.15.ebuild 5734 BLAKE2B f2d4bde48b206c4d6e97029b617f0538978144b0e3e239cf79837bf6e1525dbe398a0d3af121368299752646217e3cd3e29c4f3d1e4e549fcb9ce9c1598c5f25 SHA512 846370655b16dbc45a518374e4c1714eb135a6fab2c36059c602ee4dc236b952eba54123e536a07b484d994a68f26b94ac740ef7f645083c0ccb855492195627
 MISC metadata.xml 1560 BLAKE2B 1f49ef5d206bfe68783b2d7f235e5fc651ac750f84403eac6519a2c69c4eb35a31f784c67fd8e4c9f8e9ecdea46e5b325ed0725b45654528d56fe6d30460a829 SHA512 e3113c317b18c389e8055ec16e61426abf6f088f796e75939e78789884e2084d038bad754b2424a68e79fe1b83509d00b93bcfd72c2e3530185c780861b47f1d
diff --git a/sci-libs/openblas/openblas-0.3.15.ebuild b/sci-libs/openblas/openblas-0.3.15.ebuild
new file mode 100644
index 000000000000..4566f928af81
--- /dev/null
+++ b/sci-libs/openblas/openblas-0.3.15.ebuild
@@ -0,0 +1,198 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic fortran-2 toolchain-funcs
+
+DESCRIPTION="Optimized BLAS library based on GotoBLAS2"
+HOMEPAGE="http://xianyi.github.com/OpenBLAS/"
+SRC_URI="https://github.com/xianyi/OpenBLAS/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}"/OpenBLAS-${PV}
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~x86 ~amd64-linux ~x86-linux ~x64-macos"
+IUSE="dynamic eselect-ldso index-64bit openmp pthread relapack test"
+REQUIRED_USE="?? ( openmp pthread )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	eselect-ldso? (
+		>=app-eselect/eselect-blas-0.2
+		>=app-eselect/eselect-lapack-0.2
+	)
+"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-0.3.12-shared-blas-lapack.patch"
+	"${FILESDIR}/${PN}-0.3.10-dont-clobber-fflags.patch"
+)
+
+pkg_pretend() {
+	elog "This software has a massive number of options that"
+	elog "are configurable and it is *impossible* for all of"
+	elog "those to fit inside any manageable ebuild."
+	elog "The Gentoo provided package has enough to build"
+	elog "a fully optimized library for your targeted CPU."
+	elog "You can set the CPU target using the environment"
+	elog "variable - OPENBLAS_TARGET or it will be detected"
+	elog "automatically from the target toolchain (supports"
+	elog "cross compilation toolchains)."
+	elog "You can control the maximum number of threads"
+	elog "using OPENBLAS_NTHREAD, default=64 and number of "
+	elog "parallel calls to allow before further calls wait"
+	elog "using OPENBLAS_NPARALLEL, default=8."
+}
+
+pkg_setup() {
+	fortran-2_pkg_setup
+
+	# List of most configurable options - Makefile.rule
+
+	# https://github.com/xianyi/OpenBLAS/pull/2663
+	tc-export CC FC LD AR AS RANLIB
+
+	# HOSTCC is used for scripting
+	export HOSTCC=$(tc-getBUILD_CC)
+
+	# threading options
+	use openmp && tc-check-openmp
+	USE_THREAD=0
+	if use openmp; then
+		USE_THREAD=1; USE_OPENMP=1;
+	elif use pthread; then
+		USE_THREAD=1; USE_OPENMP=0;
+	fi
+	export USE_THREAD USE_OPENMP
+
+	# We need to filter these while building the library, and not just
+	# while building the test suite. Will hopefully get fixed upstream:
+	# https://github.com/xianyi/OpenBLAS/issues/2657
+	use test && filter-flags "-fbounds-check" "-fcheck=bounds" "-fcheck=all"
+
+	# disable submake with -j and default optimization flags
+	# in Makefile.system
+	# Makefile.rule says to not modify COMMON_OPT/FCOMMON_OPT...
+	export MAKE_NB_JOBS=-1 \
+	       COMMON_OPT=" " \
+	       FCOMMON_OPT=" "
+
+	# Target CPU ARCH options
+	# generally detected automatically from cross toolchain
+	use dynamic && \
+		export DYNAMIC_ARCH=1 \
+		       NO_AFFINITY=1 \
+		       TARGET=GENERIC
+
+	export NUM_PARALLEL=${OPENBLAS_NPARALLEL:-8} \
+	       NUM_THREADS=${OPENBLAS_NTHREAD:-64}
+
+	# setting OPENBLAS_TARGET to override auto detection
+	# in case the toolchain is not enough to detect
+	# https://github.com/xianyi/OpenBLAS/blob/develop/TargetList.txt
+	if ! use dynamic && [[ ! -z "${OPENBLAS_TARGET}" ]] ; then
+		export TARGET="${OPENBLAS_TARGET}"
+	fi
+
+	export NO_STATIC=1
+
+	BUILD_RELAPACK=1
+	if ! use relapack; then
+		BUILD_RELAPACK=0
+	fi
+
+	export PREFIX="${EPREFIX}/usr" BUILD_RELAPACK
+}
+
+src_prepare() {
+	default
+
+	# Disable tests by default
+	sed -e "/^all ::/s/tests //" -i Makefile || die
+
+	# if 64bit-index is needed, create second library
+	# with LIBPREFIX=libopenblas64
+	if use index-64bit; then
+		cp -aL "${S}" "${S}-index-64bit" || die
+	fi
+}
+
+src_compile() {
+	default
+	cd interface || die
+	emake shared-blas-lapack
+
+	if use index-64bit; then
+		emake -C"${S}-index-64bit" \
+		      INTERFACE64=1 \
+		      LIBPREFIX=libopenblas64
+	fi
+}
+
+src_test() {
+	emake tests
+}
+
+src_install() {
+	emake install DESTDIR="${D}" \
+	              OPENBLAS_INCLUDE_DIR='$(PREFIX)'/include/${PN} \
+	              OPENBLAS_LIBRARY_DIR='$(PREFIX)'/$(get_libdir)
+
+	dodoc GotoBLAS_*.txt *.md Changelog.txt
+
+	if use index-64bit; then
+		dolib.so "${S}-index-64bit"/libopenblas64*.so*
+	fi
+
+	if use eselect-ldso; then
+		insinto /usr/$(get_libdir)/blas/openblas/
+		doins interface/libblas.so.3
+		dosym libblas.so.3 usr/$(get_libdir)/blas/openblas/libblas.so
+		doins interface/libcblas.so.3
+		dosym libcblas.so.3 usr/$(get_libdir)/blas/openblas/libcblas.so
+
+		insinto /usr/$(get_libdir)/lapack/openblas/
+		doins interface/liblapack.so.3
+		dosym liblapack.so.3 usr/$(get_libdir)/lapack/openblas/liblapack.so
+		doins interface/liblapacke.so.3
+		dosym liblapacke.so.3 usr/$(get_libdir)/lapack/openblas/liblapacke.so
+	fi
+}
+
+pkg_postinst() {
+	use eselect-ldso || return
+	local libdir=$(get_libdir) me="openblas"
+
+	# check blas
+	eselect blas add ${libdir} "${EROOT}"/usr/${libdir}/blas/${me} ${me}
+	local current_blas=$(eselect blas show ${libdir} | cut -d' ' -f2)
+	if [[ ${current_blas} == "${me}" || -z ${current_blas} ]]; then
+		eselect blas set ${libdir} ${me}
+		elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
+	else
+		elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
+		elog "To use blas [${me}] implementation, you have to issue (as root):"
+		elog "\t eselect blas set ${libdir} ${me}"
+	fi
+
+	# check lapack
+	eselect lapack add ${libdir} "${EROOT}"/usr/${libdir}/lapack/${me} ${me}
+	local current_lapack=$(eselect lapack show ${libdir} | cut -d' ' -f2)
+	if [[ ${current_lapack} == "${me}" || -z ${current_lapack} ]]; then
+		eselect lapack set ${libdir} ${me}
+		elog "Current eselect: LAPACK ($libdir) -> [${current_lapack}]."
+	else
+		elog "Current eselect: LAPACK ($libdir) -> [${current_lapack}]."
+		elog "To use lapack [${me}] implementation, you have to issue (as root):"
+		elog "\t eselect lapack set ${libdir} ${me}"
+	fi
+}
+
+pkg_postrm() {
+	if use eselect-ldso; then
+		eselect blas validate
+		eselect lapack validate
+	fi
+}
diff --git a/sci-libs/opencascade/Manifest b/sci-libs/opencascade/Manifest
index cb3b1d30f995..ffd5ef735163 100644
--- a/sci-libs/opencascade/Manifest
+++ b/sci-libs/opencascade/Manifest
@@ -3,7 +3,16 @@ AUX opencascade-7.4.0-find-qt.patch 3349 BLAKE2B 6520b3242927c86c4958f81f8a94e89
 AUX opencascade-7.4.0-fix-flow-control-nesting.patch 787 BLAKE2B 929674b6c804411934adbbbf31eba4dc6cd52e15cb9959982c1770244f1edbfc7ff94c832e7e20516f18ef8548488464e15ee1b5d3de70022e9bd1213272c143 SHA512 1ba3f8ab5d62d42d17adc72c371e1a2c0f3d8e996a3f1dfaec1e1a248504592a5ccc27a651640de24f3e47402d4129f77943f3df7117215eacf98f44fa8678ba
 AUX opencascade-7.4.0-fix-install.patch 7870 BLAKE2B 4842ad5123a06a53b81ca80e4152434ee6d78a9eb5436a7a9f899651fcdb45a6f403f31bd6e4225611c1085fb91eb7a5640e5bb3fd49b71295ad0868b8e018dd SHA512 5315e82bd03a8782df8c72bbfb334d9cf739dd53f3aa22649f087c1b8b7fa5f88f7a80850c1f2e0c9dffd80a77dd99fd36e9674463535cbf48b896596c24f38e
 AUX opencascade-7.4.0-fix-issue-with-cmake-path-variables.patch 1973 BLAKE2B cac9a795d91fc55de7fc6b3c9a7f1138b8d8320e1be6879d7de4e63132a0a4e729be2dafd281e64fd52f8e05790dcb8c41bed22b8bc159b32952ad7ef79aa9da SHA512 9dfac105d41775578b6ea51fc74cbf35f9627a10bdfb35f768c09d47d7d06b11d667f231653029d297d40c82444b82d50b3bcd7d3a4520989e416d83eaaaee5e
-AUX opencascade-7.4.0.env.in 4611 BLAKE2B 3593cd4e05d33e466a975cf4641c56cd8e686310a148cc684591d3e08f8c4efd86e4df13500f11845e425b056b9c2c42f0f27a2a4d8cea524dc8fbb1c7dad703 SHA512 25f65e2b1e91fa78313334dab7d19b115bb7ff97ccefe7d18c45ab1817e12e10fdbe36babcb22e2a0d52bf7a0fbbdd2937523b773ddbb37635c1dd0d14de6253
+AUX opencascade-7.4.0.env.in 4570 BLAKE2B b8a3380e9e821a1560a9a48f566c648e43285fd7695f96e6b4b088271d6a07a4f9d3f7e259860e3b8d8f8f9af1b79ef521b3bd3b1571fd13fb8d2585b35e19ab SHA512 86180a15878e17322fc34a057d2ccb0a1c00af8b4aacc8f80aab3a8ac6b7025a8f1e125b86cc77948152eeac3b6bf786a2ee3622c37f702cd3bea62bb3d11fe6
+AUX opencascade-7.5.1-0001-allow-default-search-path-for-Qt5.patch 969 BLAKE2B 5a13b58f134e8e0670ec817308d95cc9028ac5fce3b243b8e09f191dbcdf15b1587ca8aef7a726b7d9199a708b3a949328d7fc04426e816ce6c05c74b310840e SHA512 4c22f4767ed2b81e21ce7861b6e97d3b1e13e2ebb57278c63d8a9edeae7a2b9518200d39ec30d7000d3ae3b5376a81f08150354be80848247c803208aa28c480
+AUX opencascade-7.5.1-0002-remove-unnecessary-Qt5-check.patch 764 BLAKE2B 512ebf9fd13e60acbc9d47067f158a5043623c52265ff36c216d6735e3a6df9e6355d8bf400330dd00e3ff178b24410aa547ea648ade578f9b9f0dbd6ad0eed3 SHA512 55a452c22addd31b258d078c1871537588b4b06cacabc2cb1252d01b8b9972fb416779456009ea6946935b996c12292aa0ca6d72f8b9bb33407800e5434daae1
+AUX opencascade-7.5.1-0003-add-Gentoo-configuration-type.patch 841 BLAKE2B 6189432e409f20c5181a5ab3e4febd0ec0ddaf1888183d2fe5772f29ff2bece5f499e0987226a2608572a576defa990ee0ac9827d97078a2bee99f2e7e22c053 SHA512 9a4bd753c76abf32d843220210a2f2ffaac82e4e48f359a41f42482dcfbc4d67b349821f801a7886dfb604e87ff6923a0d2fd15ebe76342f8af42b5dbc5d79d9
+AUX opencascade-7.5.1-0004-fix-installation-of-cmake-config-files.patch 2207 BLAKE2B f00d3137ff9046019f0e4dbad09d79141a65c0b68da0e5c613aa234fddfd651e2b61fb00129ae7a84f521ca3e00858d76ce46cc2f62521c22402f4b664e94274 SHA512 8a4206854a96fb4c45450ad1081cd28ede0171f32392d9f0876b7e41789a0ba2e07ca82011503bd562541367a6b39b8df15aba843f6bb6eef6c473db6ee788a4
+AUX opencascade-7.5.1-0005-fix-write-permissions-on-scripts.patch 2453 BLAKE2B 01b0ec99fb9ad032d6a90cceabb50900528abd0528b53e976484bf02f04eac9bc02b063bce5c221ae88782a126103e8077db9e90aa7f64f4f187dad00354d4d2 SHA512 fb3c374fe8aff8d2bac039a0eef754f2e823a97bfd7860bdd7e047c1b357202abfca0e37b46afc32220c7e354b5edb54805fbbbffde015bb4be2d7f4ded4a8da
+AUX opencascade-7.5.1-0006-fix-creation-of-custom.sh-script.patch 1245 BLAKE2B 1972c41e264a86761f8b3a3a649e67211776d0a4791b7e0f3adc859833e1d62e3a1d964484b2c53a516f5a33680ab2f32ad2010bf3fd531fca36373435307b68 SHA512 a2ffef88cb87acbc8215a7d1d7fe69ee17210392d39a64535d1538b2c08e43f5918c5b5e4a7540e8d636b1ba0df51670013e9d49f205bfc93a1e0d10a04388a7
+AUX opencascade-7.5.env.in 4643 BLAKE2B f3492a12e0e0fd31bed8c65e8aa7af68f84a9e752922c62ca2307c96f2d1070fdbc10e09c266114060b0f81951109bc9827853e3eba486d4f9c0eba6984c69e4 SHA512 c10151744b5656e7bafbc291729a5c0e4022e44aa5015e4fff616cb2a34409a67c4ae7433eede2563ab265fa4eb6a455d36ed99469a2579979ff374fc6588adf
 DIST opencascade-7.4.0.tar.gz 49210449 BLAKE2B c92afe7551e9a066ad0940dcf49278b556a726f0534131706b3a11cb0986ba32818e162df3982283f6815eb9d67d7e91f909485d78f2b8d638da1934ffbc2f7f SHA512 eb0d47848d48f42a159ae5d7a4144483ba1f59f634844bd2053e48e04af30a30ba7056112cd38a1730d193a8d736b898f9608dd574cbe6829dbe7257a002772a
-EBUILD opencascade-7.4.0-r4.ebuild 3947 BLAKE2B feacae0802130f77a0c39405b4c1b440723b49c5427b6405a35ceb27c2dbaaaf9fbbcc18155571b3b7e392df475c7f358c828817a3b8821e1b7a8db292fa3a9c SHA512 b7e7dc4577c07501988c24f969093e53608d8cbdaae94ea69072c9c54c13f5efaa15aa6eeda2bcd054567ad262f655fa43e92c38f90966bac128e98bb56f8025
-MISC metadata.xml 925 BLAKE2B dc225e0bdb01795642b13736c66382e40cfd2d72f5ecfe1a52920f6fbb5e1f31ce7ebb1daf9bd9c8d55c1c982bbbc2a47dd65c2e7cc64734aa954b227a8395bf SHA512 55238c390dcdf63e56c0c1461cda4f3a13b5d5066f8f06d2c7a50a38a837d00e30f8c91c9b0b70a26ac2e41c17a4c7fc442855bd71bfe60f4335b70a0f38750f
+DIST opencascade-7.5.1.tar.gz 47807222 BLAKE2B b5ef30ea7c373250db3e0863f3c7fde84256b37957a482f10a462a4c4ed1a21cffbbeb10e9fc140325022d7582efbd292ed6d1016d14cb67ccf5c84d14060d5a SHA512 ebb937254ac165041ef7e1a80df8f9d2ac1d518f01b3d4b0fd6d203fe0d80bd474b85a462cccc1c74a513bd257c0b0ab7002632573f38bf72170363c7e42ed2f
+EBUILD opencascade-7.4.0-r4.ebuild 3957 BLAKE2B 4118554fff8ff80f64ce581dd5f233211d4a77d4366ada96ae646e819ad03adebfa8561ff9c4b9f9fcfed6cc2bad65fe6db0373d434768fcf5cc8a1808fe34e6 SHA512 a7783c641793480726433be75fd5c7260d9f62e32347aa1ee4e68b97adc5e18d829984f05e84e42c120a1c027c0ad15ee73e646c708466e0eeb2a9440b9726ac
+EBUILD opencascade-7.5.1.ebuild 4415 BLAKE2B 49fe2fbcfb8933608ee516b8a1eb23e7968a922c74f7b8cb36ae25179c6a09e413f4fb2ddad16de77b9ae0bd766d3fff86cc7ff7e950d474877a462204b2fa85 SHA512 e4c18a8406a8956b4133992e94ee8a4da20f16d36221d08bdced57c3255a0a22e9352984974ae645b8ce7c8fe86576c412e8b7040e1ff1b86b264f0209fbe960
+MISC metadata.xml 1074 BLAKE2B 88bba4427a254f02a0ca70936c0931ceb72a5d752c6664502cd20dbd6cc294080222d9ef143334c147b77667a342f7912384b8af92a1b90868d243294f72215f SHA512 b42f338af31848be031702bbee6cfe105db4c6ffa5970e7229b5a63841097af1b60eb886f4513ec86f0b27fd0c7ad090b635061c737714ae43b7b45db02172f9
diff --git a/sci-libs/opencascade/files/opencascade-7.4.0.env.in b/sci-libs/opencascade/files/opencascade-7.4.0.env.in
index 2eefe188c1ab..cf7cc6a724df 100644
--- a/sci-libs/opencascade/files/opencascade-7.4.0.env.in
+++ b/sci-libs/opencascade/files/opencascade-7.4.0.env.in
@@ -76,7 +76,7 @@ LDPATH=VAR_CASROOT/lib
 # CSF_EXCEPTION_PROMPT (default: 1) optional
 #   not documented upstream (maybe a flag indicating whether the user shall
 #   be prompted in the case of exceptions)
-CSF_EXCEPTION_PROMPT=1
+#CSF_EXCEPTION_PROMPT=1
 
 # The following CSF_* variables define various directories and files where
 # OCCT is looking for resources.
@@ -93,8 +93,8 @@ CSF_IGESDefaults=VAR_CASROOT/share/opencascade/resources/XSTEPResource
 CSF_ShadersDirectory=VAR_CASROOT/share/opencascade/resources/Shaders
 CSF_SHMessage=VAR_CASROOT/share/opencascade/resources/SHMessage
 CSF_STEPDefaults=VAR_CASROOT/share/opencascade/resources/XSTEPResource
-CSF_UnitsDefinition=/usr/lib64/opencascade-7.3.0/ros/share/opencascade/resources/UnitsAPI/Units.dat
-CSF_XSMessage=/usr/lib64/opencascade-7.3.0/ros/share/opencascade/resources/XSMessage
+CSF_UnitsDefinition=VAR_CASROOT/share/opencascade/resources/UnitsAPI/Units.dat
+CSF_XSMessage=VAR_CASROOT/share/opencascade/resources/XSMessage
 
 # TODO: check those
 # they were defined in the original ebuild but the directories and files
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0001-allow-default-search-path-for-Qt5.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0001-allow-default-search-path-for-Qt5.patch
new file mode 100644
index 000000000000..68be3e1c8803
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0001-allow-default-search-path-for-Qt5.patch
@@ -0,0 +1,26 @@
+From c7d8a7374284186136d72fc285f9e55045b306fb Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl@gmail.com>
+Date: Wed, 3 Feb 2021 23:31:23 +0100
+Subject: [PATCH] allow default search path for Qt5
+
+Signed-off-by: Bernd Waibel <waebbl@gmail.com>
+---
+ adm/cmake/qt.cmake | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/adm/cmake/qt.cmake b/adm/cmake/qt.cmake
+index 535e6a20..6c2141dd 100644
+--- a/adm/cmake/qt.cmake
++++ b/adm/cmake/qt.cmake
+@@ -24,7 +24,7 @@ set(CMAKE_PREFIX_PATH ${3RDPARTY_QT_DIR})
+ 
+ # Now we can apply standard CMake finder for Qt5. We do this mostly
+ # to have qt5_wrap_cpp() function available and Qt5_FOUND variable filled
+-find_package(Qt5 QUIET COMPONENTS Widgets Quick Xml PATHS ${3RDPARTY_QT_DIR} NO_DEFAULT_PATH)
++find_package(Qt5 COMPONENTS Widgets Quick Xml REQUIRED)
+ if (NOT ${Qt5_FOUND})
+   # Now we can apply standard CMake finder for Qt. We do this mostly
+   # to have qt4_wrap_cpp() function available
+-- 
+2.30.0
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0002-remove-unnecessary-Qt5-check.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0002-remove-unnecessary-Qt5-check.patch
new file mode 100644
index 000000000000..91d5c66c7614
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0002-remove-unnecessary-Qt5-check.patch
@@ -0,0 +1,28 @@
+From dcf67dbc486a97256ea6df7b968f69346e7b3dba Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl@gmail.com>
+Date: Wed, 3 Feb 2021 23:45:27 +0100
+Subject: [PATCH] remove unnecessary Qt5 check
+
+Signed-off-by: Bernd Waibel <waebbl@gmail.com>
+---
+ adm/cmake/qt_macro.cmake | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/adm/cmake/qt_macro.cmake b/adm/cmake/qt_macro.cmake
+index ec897384..363d9c52 100644
+--- a/adm/cmake/qt_macro.cmake
++++ b/adm/cmake/qt_macro.cmake
+@@ -2,10 +2,6 @@
+ 
+ macro (FIND_QT_PACKAGE PROJECT_LIBRARIES_DEBUG PROJECT_LIBRARIES_RELEASE PROJECT_INCLUDES)
+ 
+-  if ("${3RDPARTY_QT_DIR}" STREQUAL "")
+-    message (FATAL_ERROR "Empty Qt dir")
+-  endif()
+-
+   if (${Qt5_FOUND})
+     #message (STATUS "Qt5 cmake configuration")
+ 
+-- 
+2.30.0
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0003-add-Gentoo-configuration-type.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0003-add-Gentoo-configuration-type.patch
new file mode 100644
index 000000000000..0665790d20a1
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0003-add-Gentoo-configuration-type.patch
@@ -0,0 +1,26 @@
+From a8aa40ec021dac8310d77bcec71ee298f6773926 Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl@gmail.com>
+Date: Thu, 4 Feb 2021 22:29:57 +0100
+Subject: [PATCH] add Gentoo configuration type
+
+Signed-off-by: Bernd Waibel <waebbl@gmail.com>
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 100d6133..887a1cd7 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -4,7 +4,7 @@ set (CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/adm/cmake")
+ 
+ set (CMAKE_SUPPRESS_REGENERATION TRUE)
+ 
+-set (CMAKE_CONFIGURATION_TYPES Release Debug RelWithDebInfo CACHE INTERNAL "" FORCE)
++set (CMAKE_CONFIGURATION_TYPES Release Debug RelWithDebInfo Gentoo CACHE INTERNAL "" FORCE)
+ 
+ # macro: include patched file if it exists
+ macro (OCCT_INCLUDE_CMAKE_FILE BEING_INCLUDED_FILE)
+-- 
+2.30.0
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0004-fix-installation-of-cmake-config-files.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0004-fix-installation-of-cmake-config-files.patch
new file mode 100644
index 000000000000..caace23fc2d8
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0004-fix-installation-of-cmake-config-files.patch
@@ -0,0 +1,40 @@
+From 8469f927963fe4bece05297c514fb2b9f9ad9b1a Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl@gmail.com>
+Date: Fri, 5 Feb 2021 13:44:15 +0100
+Subject: [PATCH] fix installation of cmake config files
+
+Signed-off-by: Bernd Waibel <waebbl@gmail.com>
+---
+ CMakeLists.txt              | 2 +-
+ adm/cmake/occt_macros.cmake | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 100d6133..bc8cdb92 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1156,7 +1156,7 @@ foreach (OCCT_CONFIGURATION ${CMAKE_CONFIGURATION_TYPES})
+ endforeach()
+ # install OpenCASCADE config file with compile definitions and C/C++ flags ONLY for current configuration
+ install (CODE "string (TOLOWER \"\${CMAKE_INSTALL_CONFIG_NAME}\" CMAKE_INSTALL_CONFIG_NAME_LOWER)")
+-install (CODE "configure_file(\"${CMAKE_BINARY_DIR}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" \"${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" COPYONLY)")
++install (CODE "configure_file(\"${CMAKE_BINARY_DIR}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" \"${INSTALL_DIR_CMAKE}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" COPYONLY)")
+ 
+ foreach (OCCT_MODULE ${OCCT_MODULES})
+   if (BUILD_MODULE_${OCCT_MODULE})
+diff --git a/adm/cmake/occt_macros.cmake b/adm/cmake/occt_macros.cmake
+index 0a387945..f10fe5e3 100644
+--- a/adm/cmake/occt_macros.cmake
++++ b/adm/cmake/occt_macros.cmake
+@@ -592,7 +592,7 @@ macro (OCCT_UPDATE_TARGET_FILE)
+   "cmake_policy(PUSH)
+   cmake_policy(SET CMP0007 NEW)
+   string (TOLOWER \"\${CMAKE_INSTALL_CONFIG_NAME}\" CMAKE_INSTALL_CONFIG_NAME_LOWERCASE)
+-  file (GLOB ALL_OCCT_TARGET_FILES \"${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADE*Targets-\${CMAKE_INSTALL_CONFIG_NAME_LOWERCASE}.cmake\")
++  file (GLOB ALL_OCCT_TARGET_FILES \"${INSTALL_DIR_CMAKE}/OpenCASCADE*Targets-\${CMAKE_INSTALL_CONFIG_NAME_LOWERCASE}.cmake\")
+   foreach(TARGET_FILENAME \${ALL_OCCT_TARGET_FILES})
+     file (STRINGS \"\${TARGET_FILENAME}\" TARGET_FILE_CONTENT)
+     file (REMOVE \"\${TARGET_FILENAME}\")
+-- 
+2.30.0
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0005-fix-write-permissions-on-scripts.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0005-fix-write-permissions-on-scripts.patch
new file mode 100644
index 000000000000..1cb397e0a976
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0005-fix-write-permissions-on-scripts.patch
@@ -0,0 +1,43 @@
+From 5f7db00bfc56d497a1897102a5ddd5bdddd72942 Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl-gentoo@posteo.net>
+Date: Fri, 16 Apr 2021 01:04:24 +0200
+Subject: [PATCH] fix write permissions on scripts
+
+Signed-off-by: Bernd Waibel <waebbl-gentoo@posteo.net>
+---
+ CMakeLists.txt | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 100d6133..e9e8fb29 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -890,10 +890,10 @@ if (${DRAWEXE_INDEX} GREATER -1)
+   # copy draw script to install script folder
+   if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/adm/templates/draw.${SCRIPT_EXT}")
+     install (FILES "${BUILD_PATCH}/adm/templates/draw.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_WRITE WORLD_EXECUTE)
++            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
+   else()
+     install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/draw.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_WRITE WORLD_EXECUTE)
++            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
+   endif()
+ 
+   # copy draw script to CMake binary folder
+@@ -1101,10 +1101,10 @@ if (BUILD_TOOL_TOOLKITS)
+   # copy tinspector script to install script folder
+   if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/adm/templates/inspector.${SCRIPT_EXT}")
+     install (FILES "${BUILD_PATCH}/adm/templates/inspector.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_WRITE WORLD_EXECUTE)
++            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
+   else()
+     install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/inspector.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_WRITE WORLD_EXECUTE)
++            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
+   endif()
+ 
+   set (OpenCASCADE_BINARY_DIR "${INSTALL_DIR}/${INSTALL_DIR_BIN}")
+-- 
+2.31.1
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.1-0006-fix-creation-of-custom.sh-script.patch b/sci-libs/opencascade/files/opencascade-7.5.1-0006-fix-creation-of-custom.sh-script.patch
new file mode 100644
index 000000000000..0ab023693e65
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.1-0006-fix-creation-of-custom.sh-script.patch
@@ -0,0 +1,34 @@
+From 0df9b2c485da92c6e9fdd6d4b5ea1ec6588bd66f Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <waebbl-gentoo@posteo.net>
+Date: Fri, 16 Apr 2021 14:32:24 +0200
+Subject: [PATCH] fix creation of custom.sh script
+
+Signed-off-by: Bernd Waibel <waebbl-gentoo@posteo.net>
+---
+ CMakeLists.txt | 10 +---------
+ 1 file changed, 1 insertion(+), 9 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 100d6133..7799b73a 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -909,15 +909,7 @@ else()
+ endif()
+ 
+  # change custom.bat/sh
+-if (EXISTS "${INSTALL_DIR}/${INSTALL_DIR_SCRIPT}/custom.${SCRIPT_EXT}")
+-  file (READ "${INSTALL_DIR}/${INSTALL_DIR_SCRIPT}/custom.${SCRIPT_EXT}" CUSTOM_CONTENT)
+-
+-  set (CUSTOM_CONTENT "${CUSTOM_CONTENT} ${ADDITIONAL_CUSTOM_CONTENT}")
+-
+-  file (WRITE "${INSTALL_DIR}/${INSTALL_DIR_SCRIPT}/custom.${SCRIPT_EXT}" "${CUSTOM_CONTENT}")
+-else()
+-  OCCT_CONFIGURE_AND_INSTALL ("adm/templates/custom.${SCRIPT_EXT}.main" "custom.${SCRIPT_EXT}" "custom.${SCRIPT_EXT}" "${INSTALL_DIR_SCRIPT}")
+-endif()
++OCCT_CONFIGURE_AND_INSTALL ("adm/templates/custom.${SCRIPT_EXT}.main" "custom.${SCRIPT_EXT}" "custom.${SCRIPT_EXT}" "${INSTALL_DIR_SCRIPT}")
+ 
+ if (WIN32)
+   set (THIRDPARTY_DIR_REPLACE "%THIRDPARTY_DIR%")
+-- 
+2.31.1
+
diff --git a/sci-libs/opencascade/files/opencascade-7.5.env.in b/sci-libs/opencascade/files/opencascade-7.5.env.in
new file mode 100644
index 000000000000..50766cbb6bb1
--- /dev/null
+++ b/sci-libs/opencascade/files/opencascade-7.5.env.in
@@ -0,0 +1,102 @@
+#
+# This file sets needed and optional environment variables for
+# Open CASCADE Technology
+#
+# See: https://dev.opencascade.org/doc/overview/html/index.html#OCCT_OVW_SECTION_4_2
+# for further documentation.
+#
+# Some of the values are set at compile time depending on what USE flags
+# were enabled. Those values are marked as such.
+
+# define the root directory of Open CASCADE Technology (needed)
+CASROOT=VAR_CASROOT
+PATH=VAR_CASROOT/lib/opencascade-VAR_PV/bin
+LDPATH=VAR_CASROOT/lib/opencascade-VAR_PV
+
+#############################################################################
+# The MMGT_* variables are used to determine how memory management will work
+# in OCCT. All of those are optional. If they are not set here, their default
+# values will be used.
+#
+# Uncomment or change the ones you need to adapt from its default.
+#############################################################################
+# MMGT_OPT = {0,1,2} (default: 0) set at compile time
+#   if set to 0 (the default), every memory block is allocated in C
+#      memory heap directly (via malloc() and free()). Will be set, if
+#      neither the the 'optimize' nor the 'tbb' USE flags are set.
+#   if set to 1, the memory manager performs it's own internal optimization.
+#      Will be set, if the 'optimize' USE flag is set.
+#   if set to 2, Intel(R) TBB optimized memory manager is used. Will be set,
+#      if the 'tbb' USE flag is set.
+#MMGT_OPT=0
+
+# MMGT_CLEAR = {0,1} (default: 1)
+#   if set to 0, memory block is returned as it is. Will be set, if the
+#      'optimize' USE flag is set
+#   if set to 1, every allocated memory block is cleared by zeros
+#MMGT_CLEAR=1
+
+# MMGT_CELLSIZE (default: 200)
+#   defines the maximal size of blocks allocated in large pools of memory.
+#MMGT_CELLSIZE=200
+
+# MMGT_NBPAGES (default: 10000)
+#   defines the size of memory chunks allocated for small blocks in pages
+#      (OS dependant)
+#MMGT_NBPAGES=10000
+
+# MMGT_THRESHOLD (default: 40000)
+#   defines the maximal size of blocks that are recycled internally instead
+#   of being returned to the heap.
+#MMGT_THRESHOLD=40000
+
+# MMGT_MMAP = {0,1} (default: 1)
+#   if set to 0, large memory blocks will be allocated in the C heap by
+#      malloc()
+#   if set to 1, large memory blocks are allocated using memory mapping
+#      functions of the operating system.
+#MMGT_MMAP=1
+
+# CSF_LANGUAGE (default: us) optional
+#   defines the default language of messages indicated by a two-letter
+#   country code. Currently it's not verified if this work with other
+#   than the default languages, so we keep it commented.
+#CSF_LANGUAGE=us
+
+# CSF_DEBUG_BOP (default: undefined) optional
+#   if defined then it should specify the directory where diagnostic data
+#   on problems occured in Boolean operations will be saved. Not defined by
+#   default.
+#
+# NOTE: Only enable for debugging purposes. If set, this variable has a
+# large impact on the performance of boolean operations.
+#CSF_DEBUG_BOP=/var/tmp
+
+# CSF_EXCEPTION_PROMPT (default: 1) optional
+#   not documented upstream (maybe a flag indicating whether the user shall
+#   be prompted in the case of exceptions)
+#CSF_EXCEPTION_PROMPT=1
+
+# The following CSF_* variables define various directories and files where
+# OCCT is looking for resources.
+CSF_GraphicShr=VAR_CASROOT/lib/opencascade-VAR_PV/libTKOpenGl.so
+CSF_MIGRATION_TYPES=VAR_CASROOT/share/opencascade-VAR_PV/resources/StdResource/MigrationSheet.txt
+CSF_MDTVTexturesDirectory=VAR_CASROOT/share/opencascade-VAR_PV/resources/Textures
+CSF_PluginDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/StdResource
+CSF_StandardDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/StdResource
+CSF_StandardLiteDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/StdResource
+CSF_XCAFDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/StdResource
+CSF_XmlOcafResource=VAR_CASROOT/share/opencascade-VAR_PV/resources/XmlOcafResource
+# The below values might be optional.
+CSF_IGESDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/XSTEPResource
+CSF_ShadersDirectory=VAR_CASROOT/share/opencascade-VAR_PV/resources/Shaders
+CSF_SHMessage=VAR_CASROOT/share/opencascade-VAR_PV/resources/SHMessage
+CSF_STEPDefaults=VAR_CASROOT/share/opencascade-VAR_PV/resources/XSTEPResource
+CSF_UnitsDefinition=VAR_CASROOT/share/opencascade-VAR_PV/resources/UnitsAPI/Units.dat
+CSF_XSMessage=VAR_CASROOT/share/opencascade-VAR_PV/resources/XSMessage
+
+# TODO: check those
+# they were defined in the original ebuild but the directories and files
+# are not present in the current installation.
+#CSF_MDTVFontDirectory=VAR_CASROOT/src/FontMFT
+#CSF_UnitsLexicon=VAR_CASROOT/src/UnitsAPI/Lexi_Expr.dat
diff --git a/sci-libs/opencascade/metadata.xml b/sci-libs/opencascade/metadata.xml
index aa017491b603..9477ecff1347 100644
--- a/sci-libs/opencascade/metadata.xml
+++ b/sci-libs/opencascade/metadata.xml
@@ -11,7 +11,7 @@
 </maintainer>
 <use>
 	<flag name="freeimage">
-		Enable support for image i/o via media-libs/freeimage
+		Enable support for image i/o via <pkg>media-libs/freeimage</pkg>
 	</flag>
 	<flag name="gles2">
 		Use OpenGL ES 2.0
@@ -19,15 +19,19 @@
 	<flag name="inspector">
 		Build the OCCT inspector tool for low-level data inspection
 	</flag>
+	<flag name="json">
+		Enable JSON support through <pkg>dev-libs/rapidjson</pkg>
+	</flag>
 	<flag name="optimize">
 		Don't clear allocated memory. Use optimized memory manager unless
 		tbb USE flag is set.
 	</flag>
 	<flag name="tbb">
-		Enable multithreading with the Intel Threads Building Block dev-cpp/tbb
+		Enable multithreading with the Intel Threads Building Block
+		<pkg>dev-cpp/tbb</pkg>
 	</flag>
 	<flag name="vtk">
-		Enable Visualization Toolkit
+		Enable Visualization Toolkit support via <pkg>sci-libs/vtk</pkg>
 	</flag>
 </use>
 </pkgmetadata>
diff --git a/sci-libs/opencascade/opencascade-7.4.0-r4.ebuild b/sci-libs/opencascade/opencascade-7.4.0-r4.ebuild
index 2c5adfb7524f..7a53a10d3509 100644
--- a/sci-libs/opencascade/opencascade-7.4.0-r4.ebuild
+++ b/sci-libs/opencascade/opencascade-7.4.0-r4.ebuild
@@ -9,19 +9,21 @@ EAPI=7
 
 inherit check-reqs cmake flag-o-matic java-pkg-opt-2
 
+MY_PV="$(ver_rs 1- '_')"
+
 DESCRIPTION="Development platform for CAD/CAE, 3D surface/solid modeling and data exchange"
 HOMEPAGE="https://www.opencascade.com"
-MY_PV="$(ver_rs 1- '_')"
 SRC_URI="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/tags/V${MY_PV};sf=tgz -> ${P}.tar.gz"
+S="${WORKDIR}/occt-V${MY_PV}"
 
 LICENSE="|| ( Open-CASCADE-LGPL-2.1-Exception-1.0 LGPL-2.1 )"
 SLOT="${PV}"
 KEYWORDS="~amd64 ~arm64 ~x86"
-# gl2ps
-IUSE="debug doc examples ffmpeg freeimage gles2 inspector java optimize qt5 tbb +vtk"
+IUSE="debug doc +examples ffmpeg freeimage gles2 inspector java optimize qt5 tbb +vtk"
 
 REQUIRED_USE="
 	inspector? ( qt5 )
+	qt5? ( examples )
 	?? ( optimize tbb )
 "
 
@@ -56,10 +58,8 @@ RDEPEND="
 "
 DEPEND="${RDEPEND}"
 BDEPEND="
-	doc? (
-		app-doc/doxygen
-		qt5? ( dev-qt/linguist-tools:5 )
-	)
+	doc? ( app-doc/doxygen )
+	qt5? ( dev-qt/linguist-tools:5 )
 "
 
 # There's no easy way to test. Testing needs a rather big environment
@@ -71,8 +71,6 @@ CHECKREQS_DISK_BUILD="3584M"
 
 CMAKE_BUILD_TYPE=Release
 
-S="${WORKDIR}/occt-V${MY_PV}"
-
 PATCHES=(
 	"${FILESDIR}/${P}-find-qt.patch"
 	"${FILESDIR}/${P}-fix-install.patch"
@@ -116,7 +114,7 @@ src_configure() {
 	cmake_src_configure
 
 	# prepare /etc/env.d file
-	sed -e 's|VAR_CASROOT|'${EROOT%}'/usr/'$(get_libdir)'/'${P}'/ros|g' < "${FILESDIR}/${P}.env.in" >> "${T}/${PV}" || die
+	sed -e 's|VAR_CASROOT|'${ESYSROOT}'/usr/'$(get_libdir)'/'${P}'/ros|g' < "${FILESDIR}/${P}.env.in" >> "${T}/${PV}" || die
 	sed -i -e 's|ros/lib|ros/'$(get_libdir)'|' "${T}/${PV}" || die
 
 	# use TBB for memory allocation optimizations?
diff --git a/sci-libs/opencascade/opencascade-7.5.1.ebuild b/sci-libs/opencascade/opencascade-7.5.1.ebuild
new file mode 100644
index 000000000000..474b381f5561
--- /dev/null
+++ b/sci-libs/opencascade/opencascade-7.5.1.ebuild
@@ -0,0 +1,167 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# TODO:
+# check the src files referenced in 51opencascade, i.e. resources and the like
+
+EAPI=7
+
+inherit cmake flag-o-matic
+
+MY_PV="$(ver_rs 1- '_')"
+PV_MAJ="$(ver_cut 1-2)"
+
+DESCRIPTION="Development platform for CAD/CAE, 3D surface/solid modeling and data exchange"
+HOMEPAGE="https://www.opencascade.com"
+SRC_URI="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/tags/V${MY_PV};sf=tgz -> ${P}.tar.gz"
+S="${WORKDIR}/occt-V${MY_PV}"
+
+LICENSE="|| ( Open-CASCADE-LGPL-2.1-Exception-1.0 LGPL-2.1 )"
+SLOT="${PV_MAJ}"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="debug doc examples ffmpeg freeimage gles2 json optimize tbb vtk"
+
+REQUIRED_USE="?? ( optimize tbb )"
+
+# There's no easy way to test. Testing needs a rather big environment
+# properly set up.
+RESTRICT="test"
+
+RDEPEND="
+	app-eselect/eselect-opencascade
+	dev-cpp/eigen
+	dev-lang/tcl:0=
+	dev-lang/tk:0=
+	dev-libs/rapidjson
+	dev-tcltk/itcl
+	dev-tcltk/itk
+	dev-tcltk/tix
+	media-libs/fontconfig
+	media-libs/freetype:2
+	media-libs/ftgl
+	virtual/glu
+	virtual/opengl
+	x11-libs/libXmu
+	examples? (
+		dev-qt/qtcore:5
+		dev-qt/qtgui:5
+		dev-qt/qtquickcontrols2:5
+		dev-qt/qtwidgets:5
+		dev-qt/qtxml:5
+	)
+	ffmpeg? ( media-video/ffmpeg )
+	freeimage? ( media-libs/freeimage )
+	json? ( dev-libs/rapidjson )
+	tbb? ( dev-cpp/tbb )
+	vtk? ( >=sci-libs/vtk-8.1.0[rendering] )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	doc? ( app-doc/doxygen )
+	examples? ( dev-qt/linguist-tools:5 )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-0001-allow-default-search-path-for-Qt5.patch
+	"${FILESDIR}"/${P}-0002-remove-unnecessary-Qt5-check.patch
+	"${FILESDIR}"/${P}-0003-add-Gentoo-configuration-type.patch
+	"${FILESDIR}"/${P}-0004-fix-installation-of-cmake-config-files.patch
+	"${FILESDIR}"/${P}-0005-fix-write-permissions-on-scripts.patch
+	"${FILESDIR}"/${P}-0006-fix-creation-of-custom.sh-script.patch
+)
+
+src_prepare() {
+	cmake_src_prepare
+
+	if use debug; then
+		append-cppflags -DDEBUG
+		append-flags -g
+	fi
+
+	sed -e 's/\/lib\$/\/'$(get_libdir)'\$/' \
+		-i adm/templates/OpenCASCADEConfig.cmake.in || die
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_DOC_Overview=$(usex doc)
+		-DBUILD_Inspector=$(usex examples)
+		-DBUILD_WITH_DEBUG=$(usex debug)
+		-DCMAKE_INSTALL_PREFIX="/usr"
+		-DINSTALL_DIR_BIN="$(get_libdir)/${P}/bin"
+		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${P}"
+		-DINSTALL_DIR_DOC="share/doc/${PF}"
+		-DINSTALL_DIR_LIB="$(get_libdir)/${P}"
+		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${P}/bin"
+		-DINSTALL_DIR_WITH_VERSION=ON
+		-DINSTALL_SAMPLES=$(usex examples)
+		-DINSTALL_TEST_CASES=NO
+		-DUSE_D3D=NO
+		-DUSE_FFMPEG=$(usex ffmpeg)
+		-DUSE_FREEIMAGE=$(usex freeimage)
+		-DUSE_FREETYPE=ON
+		-DUSE_GLES2=$(usex gles2)
+		-DUSE_RAPIDJSON=$(usex json)
+		-DUSE_TBB=$(usex tbb)
+		-DUSE_VTK=$(usex vtk)
+	)
+
+	use doc && mycmakeargs+=( -DINSTALL_DOC_Overview=ON )
+
+	if use examples; then
+		mycmakeargs+=(
+			-D3RDPARTY_QT_DIR="${ESYSROOT}"/usr
+			-DBUILD_SAMPLES_QT=ON
+		)
+	fi
+
+	if use vtk; then
+		if has_version ">=sci-libs/vtk-9.0.0"; then
+			mycmakeargs+=(
+				-D3RDPARTY_VTK_DIR="${ESYSROOT}"/usr
+				-D3RDPARTY_VTK_INCLUDE_DIR="${ESYSROOT}"/usr/include/vtk-9.0
+				-D3RDPARTY_VTK_LIBRARY_DIR="${ESYSROOT}"/usr/$(get_libdir)
+			)
+		fi
+	fi
+
+	cmake_src_configure
+
+	prepare_env_file() {
+		# prepare /etc/env.d file
+		sed -e 's|VAR_CASROOT|'${ESYSROOT}'/usr|g' < "${FILESDIR}/${PN}-${PV_MAJ}.env.in" >> "${T}/${PV_MAJ}" || die
+		sed -e 's|lib/|'$(get_libdir)'/|g' -i "${T}/${PV_MAJ}" || die
+		sed -e 's|VAR_PV|'${PV}'|g' -i "${T}/${PV_MAJ}" || die
+
+		# use TBB for memory allocation optimizations?
+		use tbb && (sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}/${PV_MAJ}" || die)
+
+		if use optimize ; then
+			# use internal optimized memory manager?
+			sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=1|' -i "${T}/${PV_MAJ}" || die
+			# don't clear memory ?
+			sed -e 's|^#MMGT_CLEAR=1$|MMGT_CLEAR=0|' -i "${T}/${PV_MAJ}" || die
+		fi
+	}
+
+	prepare_env_file
+}
+
+src_install() {
+	use doc && docompress -x /usr/share/doc/${PF}/overview/html
+	cmake_src_install
+
+	# respect slotting
+	insinto "/etc/env.d/${PN}"
+	doins "${T}/${PV_MAJ}"
+
+	# remove examples
+	if use !examples; then
+		rm -r "${ED}/usr/share/${P}/samples" || die
+	fi
+}
+
+pkg_postinst() {
+	eselect ${PN} set ${PV_MAJ} || die "failed to switch to updated implementation"
+	einfo "You can switch between available ${PN} implementations using eselect ${PN}"
+}