gentoo resync : 16.01.2021

6 files changed, 257 insertions, 82 deletions

diff --git a/sci-libs/opencascade/Manifest b/sci-libs/opencascade/Manifest
index 3a5c7e6b0c42..6154aae3a8ed 100644
--- a/sci-libs/opencascade/Manifest
+++ b/sci-libs/opencascade/Manifest
@@ -5,9 +5,11 @@ AUX opencascade-7.5.1-0004-fix-installation-of-cmake-config-files.patch 2207 BLA
 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-7.5.1-fix-AllValues-name-collision-with-vtk-9.0.patch 5749 BLAKE2B 9176a738ec6b39a1cd5da61f2d72d096b09f6019f63a5b7733c5aa00796529f2cc5e3becdf5c24cfa01e4ff5b9da5ae9cd359372e6974eeaae7bcdf87e8c03c8 SHA512 5f7970e1461652966c34b1adb6e2580cfd7e3e230abbf108193027f67afbd5e78fc7451b50bf632fa3889174626384e4a0044d693e4f49ab9ece84a2ec6bd04a
-AUX opencascade-7.5.env.in 4683 BLAKE2B 4c7c3764e56110c34c9acb9ecb860936049cf03f4ed99d708a8f631b5d3dc7cfa95ca7f8fe8b259986fa637243fe80a6888a2db6a2ad6f80b3b2175a9bb8680f SHA512 773b213e8d7752fc028d951d2a5d5aa610c96ee916499c3655e60f0ec485d393c3bf13a85cae104653242829d8abb9fea451f17bf1b902e1c1fa0bf5b329f08b
+AUX opencascade.env.in 4571 BLAKE2B 81780f83a476ba5a2691c003c7fde48fec14be4e355480080749800602307d64b88f779cde09aa94a7bb815849d669b054d5ca00908199d1a9857b07518b4f0d SHA512 98e6861469725f6880e38a2d7389f7bc748bcbdf54930aa3fe05ab6a5e1fab5249c4ffed4f45b6ef982325acece0d5acb7ffd8d92adac9be2db9a41ee5356019
 DIST opencascade-7.5.2.tar.gz 47812603 BLAKE2B 86995ea60e24329f91a2cbede26112a70794fb091b34d33614bef412b05b8cc9f1e770aecf78272b54a241c2524422c86f8ff722b3f27b54bf10fa5eda626288 SHA512 f951a941043a56f381cfd25e4d78bb9ae08e5cc29a894e6c0c35daf30aeabf1e44ee09af65bb6b7d62d9325be67741ddcf52266b7186b4c336c70ed8bcfa1676
 DIST opencascade-7.5.3.tar.gz 47817862 BLAKE2B be438a08997c18c3cb2c08c520fff2f439cc8a406cc3f471be3b24f874ac3bd892c4afe6fa37f742ffb5da21b5a29f9c8f737e3160dcbda35a217286218eb5e1 SHA512 2d7cf284a1b3ce8d05151085b41579cc2f4e29489b7920769cd04f86a6d76e49f533b570226d3cf041c75582894ed8a6aff889312c7c507fffae47d3e57c5c47
-EBUILD opencascade-7.5.2-r2.ebuild 4640 BLAKE2B e6934f327c65b6add9f1c4f04db820543ca5ae02c636828380966eaa97635d7d2d380c4a966181dbaac54e6647361cf6b1369ce48e9cac57230b95eca92f5479 SHA512 7372ef935034a25f13c78fa88d5605e34d3a927241f2248ff360b341816688c8fe03c04afedd778d0c7ef4645b1b7f0de4c6d363977a02d693be707b521e2185
-EBUILD opencascade-7.5.3-r3.ebuild 4640 BLAKE2B f65b18f0554650c7eb60ad8f8f7684b8ce8ffada6c2e054a5bfffb7ebccc9b5d115eceb372c81f20bac021da0f1169735ff27a2fbf2cafe22361db670ce09d25 SHA512 845d39bbb2871b807b943da578d8fd08f77fea06688ed89bb754b7064f5818b0fdb3711a715e59d3c6ef79a67ef714a58c19a031d329327210578c346a3f1671
-MISC metadata.xml 979 BLAKE2B f5a7d51dd3a85f7409d97671fe8b3ca8675d11f78f3de4c8511d3e7be8d95b7f37bf3993dc21a2e33de0ac8412a57cb4385ec9cd7a37d2dbe3772fbbca298b13 SHA512 eb9673f62eee92feaf2da8ff42887c3cfd7d74558b8a35a5d482809a196211c2a6953c6f23558fdd74f10d6db3f493a4c022a5f8d7b1764e39e473394cf671d6
+DIST opencascade-7.6.0.tar.gz 48193117 BLAKE2B c16cd096f20e90267a00b6be21b17b22b491cf5d9aa1a311d64d7707042dc88380c60ececceb6728dbcdd4ff56a67558144292950e11518b21cbc49ace4e88cd SHA512 6839eb6641b9e0752474fce11cf1756223067febe0f5bcd5db249e3eccef29517a6952c124aae818220b6360070a792dacd1b0b4ce970b8351ce38598f31b4be
+EBUILD opencascade-7.5.2-r5.ebuild 4730 BLAKE2B d0fa916eed671b5f1069eb52e474a8dd1d81bf56ede75ac60c3a8cab74a173530bca9b568b3ef9c665323ecd32c4f01508dcb5bf544c910fe057a1b1572d8c23 SHA512 489eacdda65c0eaabb18448200578c10dd7aa3876001efa2df81c1a2924de036127f6c6281c8259412e793cff6677b1d2f63d4369b3b027621885c3c5cf7052e
+EBUILD opencascade-7.5.3-r6.ebuild 4730 BLAKE2B f56506fc176a6a2ff8aa238e321bc59ee92367aa40c1138931fee15ab2954290a96bf438338a213cb192a8dec326fca035b350ea7cc280e134a47929932e2b8f SHA512 b09a996e7c4e27f457b0c6a4c1c2bf93d93bef87b20eaa603bc018286e3aab0116e25b94e6c1a4bfd530c8075b67ccd332f574b2ada29d5af6c1b20bbb1f4731
+EBUILD opencascade-7.6.0-r2.ebuild 4423 BLAKE2B 4034cbc3b50261524a61f92fd7d92ad0e380bd58d0ce95c82425b9d634c368530ec4c46d891f979050885b3b11ac95f5d2d51ab2e4b48c41fab6493459011423 SHA512 ea1d6c2233a40dfebad4b610ba9a29719b84ee52479db0a449532d69f07663959bc8c868a15d4f49b610bd071f46d9fdb026f0e73739b59ca628094079c7c396
+MISC metadata.xml 1102 BLAKE2B 8569899b7ab437a4115ced11d3421f063d99233ed81bb5360228e580b20af2ee9753b41a8b3cb1291550160fa627058d915fde0e23514dcbed0f9cddc961ae11 SHA512 e9a38c41beec8eb54d6b9232447df3bc05635318f8dc727ddebc5f13be4d58b8d10576ddbb07a9fef41ba2adeb7ba1abcb4e10087b4711c4ff348d873c4916a8
diff --git a/sci-libs/opencascade/files/opencascade-7.5.env.in b/sci-libs/opencascade/files/opencascade.env.in
index d7148c241f11..28006d724806 100644
--- a/sci-libs/opencascade/files/opencascade-7.5.env.in
+++ b/sci-libs/opencascade/files/opencascade.env.in
@@ -10,8 +10,8 @@
 
 # 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"
+PATH="VAR_CASROOT/lib/opencascade/bin"
+LDPATH="VAR_CASROOT/lib/opencascade"
 
 #############################################################################
 # The MMGT_* variables are used to determine how memory management will work
@@ -79,21 +79,21 @@ LDPATH="VAR_CASROOT/lib/opencascade-VAR_PV"
 
 # 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"
+CSF_GraphicShr="VAR_CASROOT/lib/opencascade/libTKOpenGl.so"
+CSF_MIGRATION_TYPES="VAR_CASROOT/share/opencascade/resources/StdResource/MigrationSheet.txt"
+CSF_MDTVTexturesDirectory="VAR_CASROOT/share/opencascade/resources/Textures"
+CSF_PluginDefaults="VAR_CASROOT/share/opencascade/resources/StdResource"
+CSF_StandardDefaults="VAR_CASROOT/share/opencascade/resources/StdResource"
+CSF_StandardLiteDefaults="VAR_CASROOT/share/opencascade/resources/StdResource"
+CSF_XCAFDefaults="VAR_CASROOT/share/opencascade/resources/StdResource"
+CSF_XmlOcafResource="VAR_CASROOT/share/opencascade/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"
+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="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/metadata.xml b/sci-libs/opencascade/metadata.xml
index fe7ad33b9523..d1b713a48a87 100644
--- a/sci-libs/opencascade/metadata.xml
+++ b/sci-libs/opencascade/metadata.xml
@@ -10,6 +10,10 @@
 	<name>Proxy Maintainers</name>
 </maintainer>
 <use>
+	<flag name="eigen">
+		Enable support for eigenvalues through the header-only
+		<pkg>dev-cpp/eigen</pkg> package.
+	</flag>
 	<flag name="freeimage">
 		Enable support for image i/o via <pkg>media-libs/freeimage</pkg>
 	</flag>
diff --git a/sci-libs/opencascade/opencascade-7.5.2-r2.ebuild b/sci-libs/opencascade/opencascade-7.5.2-r5.ebuild
index cf90cc0c8aa1..8bf1c6acd11e 100644
--- a/sci-libs/opencascade/opencascade-7.5.2-r2.ebuild
+++ b/sci-libs/opencascade/opencascade-7.5.2-r5.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -14,9 +14,9 @@ SRC_URI="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/ta
 S="${WORKDIR}/occt-V${MY_PV}"
 
 LICENSE="|| ( Open-CASCADE-LGPL-2.1-Exception-1.0 LGPL-2.1 )"
-SLOT="${PV_MAJ}"
+SLOT="0/${PV_MAJ}"
 KEYWORDS="~amd64 ~arm64 ~x86"
-IUSE="debug doc examples ffmpeg freeimage gles2 json optimize tbb vtk"
+IUSE="debug doc examples ffmpeg freeimage gles2-only json optimize tbb vtk"
 
 REQUIRED_USE="?? ( optimize tbb )"
 
@@ -25,7 +25,7 @@ REQUIRED_USE="?? ( optimize tbb )"
 RESTRICT="test"
 
 RDEPEND="
-	app-eselect/eselect-opencascade
+	!app-eselect/eselect-opencascade
 	dev-lang/tcl:=
 	dev-lang/tk:=
 	dev-tcltk/itcl
@@ -49,13 +49,11 @@ RDEPEND="
 	tbb? ( <dev-cpp/tbb-2021.4.0 )
 	vtk? ( sci-libs/vtk:=[rendering] )
 "
-DEPEND="
-	${RDEPEND}
+DEPEND="${RDEPEND}"
+
+BDEPEND="
 	dev-cpp/eigen
 	dev-libs/rapidjson
-"
-BDEPEND="
-	app-eselect/eselect-opencascade
 	doc? ( app-doc/doxygen )
 	examples? ( dev-qt/linguist-tools:5 )
 "
@@ -90,20 +88,25 @@ src_configure() {
 	local mycmakeargs=(
 		-DBUILD_DOC_Overview=$(usex doc)
 		-DBUILD_Inspector=$(usex examples)
-		-DBUILD_WITH_DEBUG=$(usex debug)
-		-DINSTALL_DIR_BIN="$(get_libdir)/${P}/bin"
-		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${P}"
+
+		-DINSTALL_DIR_BIN="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${PN}"
+		-DINSTALL_DIR_DATA="share/${PN}/data"
 		-DINSTALL_DIR_DOC="share/doc/${PF}"
-		-DINSTALL_DIR_LIB="$(get_libdir)/${P}"
-		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${P}/bin"
-		-DINSTALL_DIR_WITH_VERSION=ON
+		-DINSTALL_DIR_INCLUDE="include/${PN}"
+		-DINSTALL_DIR_LIB="$(get_libdir)/${PN}"
+		-DINSTALL_DIR_RESOURCE="share/${PN}/resources"
+		-DINSTALL_DIR_SAMPLES="share/${PN}/samples"
+		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_WITH_VERSION=OFF
 		-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_GLES2=$(usex gles2-only)
 		-DUSE_RAPIDJSON=$(usex json)
 		-DUSE_TBB=$(usex tbb)
 		-DUSE_VTK=$(usex vtk)
@@ -119,7 +122,13 @@ src_configure() {
 	fi
 
 	if use vtk; then
-		if has_version ">=sci-libs/vtk-9.0.0"; then
+		if has_version ">=sci-libs/vtk-9.1.0"; then
+			mycmakeargs+=(
+				-D3RDPARTY_VTK_DIR="${ESYSROOT}"/usr
+				-D3RDPARTY_VTK_INCLUDE_DIR="${ESYSROOT}"/usr/include/vtk-9.1
+				-D3RDPARTY_VTK_LIBRARY_DIR="${ESYSROOT}"/usr/$(get_libdir)
+			)
+		elif 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
@@ -132,13 +141,12 @@ src_configure() {
 
 	# prepare /etc/env.d file
 	sed -e "s|lib/|$(get_libdir)/|" \
-		-e "s|VAR_PV|${PV}|" \
-		-e "s|VAR_CASROOT|${ESYSROOT}/usr|" \
-		< "${FILESDIR}"/${PN}-${PV_MAJ}.env.in > "${T}"/${PV_MAJ} || die
+		-e "s|VAR_CASROOT|${EPREFIX}/usr|" \
+		< "${FILESDIR}"/${PN}.env.in > "${T}"/99${PN} || die
 
 	# use TBB for memory allocation optimizations
 	if use tbb; then
-		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}"/${PV_MAJ} || die
+		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}"/99${PN} || die
 	fi
 
 	# use internal optimized memory manager and don't clear memory with this
@@ -146,26 +154,19 @@ src_configure() {
 	if use optimize ; then
 		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=1|' \
 			-e 's|^#MMGT_CLEAR=1$|MMGT_CLEAR=0|' \
-			-i "${T}"/${PV_MAJ} || die
+			-i "${T}"/99${PN} || die
 	fi
 }
 
 src_install() {
 	cmake_src_install
 
-	# respect slotting
-	insinto "/etc/env.d/${PN}"
-	doins "${T}/${PV_MAJ}"
+	doenvd "${T}/99${PN}"
 
 	# remove examples
 	if use !examples; then
-		rm -r "${ED}/usr/share/${P}/samples" || die
+		rm -r "${ED}/usr/share/${PN}/samples" || die
 	fi
 
 	docompress -x /usr/share/doc/${PF}/overview/html
 }
-
-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}"
-}
diff --git a/sci-libs/opencascade/opencascade-7.5.3-r3.ebuild b/sci-libs/opencascade/opencascade-7.5.3-r6.ebuild
index 0296150b6b01..1bec9312ad8d 100644
--- a/sci-libs/opencascade/opencascade-7.5.3-r3.ebuild
+++ b/sci-libs/opencascade/opencascade-7.5.3-r6.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -14,9 +14,9 @@ SRC_URI="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/ta
 S="${WORKDIR}/occt-V${MY_PV}"
 
 LICENSE="|| ( Open-CASCADE-LGPL-2.1-Exception-1.0 LGPL-2.1 )"
-SLOT="${PV_MAJ}"
+SLOT="0/${PV_MAJ}"
 KEYWORDS="~amd64 ~arm64 ~x86"
-IUSE="debug doc examples ffmpeg freeimage gles2 json optimize tbb vtk"
+IUSE="debug doc examples ffmpeg freeimage gles2-only json optimize tbb vtk"
 
 REQUIRED_USE="?? ( optimize tbb )"
 
@@ -25,7 +25,7 @@ REQUIRED_USE="?? ( optimize tbb )"
 RESTRICT="test"
 
 RDEPEND="
-	app-eselect/eselect-opencascade
+	!app-eselect/eselect-opencascade
 	dev-lang/tcl:=
 	dev-lang/tk:=
 	dev-tcltk/itcl
@@ -49,13 +49,11 @@ RDEPEND="
 	tbb? ( <dev-cpp/tbb-2021.4.0 )
 	vtk? ( sci-libs/vtk:=[rendering] )
 "
-DEPEND="
-	${RDEPEND}
+DEPEND="${RDEPEND}"
+
+BDEPEND="
 	dev-cpp/eigen
 	dev-libs/rapidjson
-"
-BDEPEND="
-	app-eselect/eselect-opencascade
 	doc? ( app-doc/doxygen )
 	examples? ( dev-qt/linguist-tools:5 )
 "
@@ -90,20 +88,25 @@ src_configure() {
 	local mycmakeargs=(
 		-DBUILD_DOC_Overview=$(usex doc)
 		-DBUILD_Inspector=$(usex examples)
-		-DBUILD_WITH_DEBUG=$(usex debug)
-		-DINSTALL_DIR_BIN="$(get_libdir)/${P}/bin"
-		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${P}"
+
+		-DINSTALL_DIR_BIN="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${PN}"
+		-DINSTALL_DIR_DATA="share/${PN}/data"
 		-DINSTALL_DIR_DOC="share/doc/${PF}"
-		-DINSTALL_DIR_LIB="$(get_libdir)/${P}"
-		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${P}/bin"
-		-DINSTALL_DIR_WITH_VERSION=ON
+		-DINSTALL_DIR_INCLUDE="include/${PN}"
+		-DINSTALL_DIR_LIB="$(get_libdir)/${PN}"
+		-DINSTALL_DIR_RESOURCE="share/${PN}/resources"
+		-DINSTALL_DIR_SAMPLES="share/${PN}/samples"
+		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_WITH_VERSION=OFF
 		-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_GLES2=$(usex gles2-only)
 		-DUSE_RAPIDJSON=$(usex json)
 		-DUSE_TBB=$(usex tbb)
 		-DUSE_VTK=$(usex vtk)
@@ -119,7 +122,13 @@ src_configure() {
 	fi
 
 	if use vtk; then
-		if has_version ">=sci-libs/vtk-9.0.0"; then
+		if has_version ">=sci-libs/vtk-9.1.0"; then
+			mycmakeargs+=(
+				-D3RDPARTY_VTK_DIR="${ESYSROOT}"/usr
+				-D3RDPARTY_VTK_INCLUDE_DIR="${ESYSROOT}"/usr/include/vtk-9.1
+				-D3RDPARTY_VTK_LIBRARY_DIR="${ESYSROOT}"/usr/$(get_libdir)
+			)
+		elif 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
@@ -132,13 +141,12 @@ src_configure() {
 
 	# prepare /etc/env.d file
 	sed -e "s|lib/|$(get_libdir)/|" \
-		-e "s|VAR_PV|${PV}|" \
-		-e "s|VAR_CASROOT|${ESYSROOT}/usr|" \
-		< "${FILESDIR}"/${PN}-${PV_MAJ}.env.in > "${T}"/${PV_MAJ} || die
+		-e "s|VAR_CASROOT|${EPREFIX}/usr|" \
+		< "${FILESDIR}"/${PN}.env.in > "${T}"/99${PN} || die
 
 	# use TBB for memory allocation optimizations
 	if use tbb; then
-		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}"/${PV_MAJ} || die
+		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}"/99${PN} || die
 	fi
 
 	# use internal optimized memory manager and don't clear memory with this
@@ -146,26 +154,19 @@ src_configure() {
 	if use optimize ; then
 		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=1|' \
 			-e 's|^#MMGT_CLEAR=1$|MMGT_CLEAR=0|' \
-			-i "${T}"/${PV_MAJ} || die
+			-i "${T}"/99${PN} || die
 	fi
 }
 
 src_install() {
 	cmake_src_install
 
-	# respect slotting
-	insinto "/etc/env.d/${PN}"
-	doins "${T}/${PV_MAJ}"
+	doenvd "${T}/99${PN}"
 
 	# remove examples
 	if use !examples; then
-		rm -r "${ED}/usr/share/${P}/samples" || die
+		rm -r "${ED}/usr/share/${PN}/samples" || die
 	fi
 
 	docompress -x /usr/share/doc/${PF}/overview/html
 }
-
-pkg_postinst() {
-	eselect ${PN} set ${PV_MAJ} || die "failed to switch to updated implementation"
-	einfo "You can switch between available ${PN} implementations using eselect ${PN}"
-}
diff --git a/sci-libs/opencascade/opencascade-7.6.0-r2.ebuild b/sci-libs/opencascade/opencascade-7.6.0-r2.ebuild
new file mode 100644
index 000000000000..595c605bc985
--- /dev/null
+++ b/sci-libs/opencascade/opencascade-7.6.0-r2.ebuild
@@ -0,0 +1,167 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+MY_PV="$(ver_rs 1- '_')"
+MY_SLOT="$(ver_cut 1-2)"
+
+DESCRIPTION="Development platform for CAD/CAE, 3D surface/solid modeling and data exchange"
+HOMEPAGE="https://www.opencascade.com"
+SRC_URI="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/tags/V${MY_PV};sf=tgz -> ${P}.tar.gz"
+S="${WORKDIR}/occt-V${MY_PV}"
+
+LICENSE="|| ( Open-CASCADE-LGPL-2.1-Exception-1.0 LGPL-2.1 )"
+SLOT="0/${MY_SLOT}"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="doc eigen 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-lang/tcl:=
+	dev-lang/tk:=
+	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 )
+	tbb? ( <dev-cpp/tbb-2021.4 )
+	vtk? ( sci-libs/vtk:=[rendering] )
+"
+DEPEND="
+	${RDEPEND}
+	eigen? ( dev-cpp/eigen )
+	json? ( dev-libs/rapidjson )
+"
+BDEPEND="
+	doc? ( app-doc/doxygen[dot] )
+	examples? ( dev-qt/linguist-tools:5 )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-7.5.1-0004-fix-installation-of-cmake-config-files.patch
+	"${FILESDIR}"/${PN}-7.5.1-0005-fix-write-permissions-on-scripts.patch
+	"${FILESDIR}"/${PN}-7.5.1-0006-fix-creation-of-custom.sh-script.patch
+)
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed -e 's|/lib\$|/'$(get_libdir)'\$|' \
+		-i adm/templates/OpenCASCADEConfig.cmake.in || die
+
+	# There is an OCCT_UPDATE_TARGET_FILE cmake macro that fails due to some
+	# assumptions it makes about installation paths. Rather than fixing it, just
+	# get rid of the mechanism altogether - its purpose is to allow a
+	# side-by-side installation of release and debug libraries.
+	sed -e 's|\\${OCCT_INSTALL_BIN_LETTER}||' \
+		-i adm/cmake/occt_toolkit.cmake || die
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_DOC_Overview=$(usex doc)
+		-DBUILD_Inspector=$(usex examples)
+
+		-DINSTALL_DIR_BIN="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_CMAKE="$(get_libdir)/cmake/${PN}"
+		-DINSTALL_DIR_DATA="share/${PN}/data"
+		-DINSTALL_DIR_DOC="share/doc/${PF}"
+		-DINSTALL_DIR_INCLUDE="include/${PN}"
+		-DINSTALL_DIR_LIB="$(get_libdir)/${PN}"
+		-DINSTALL_DIR_RESOURCE="share/${PN}/resources"
+		-DINSTALL_DIR_SAMPLES="share/${PN}/samples"
+		-DINSTALL_DIR_SCRIPT="$(get_libdir)/${PN}/bin"
+		-DINSTALL_DIR_WITH_VERSION=OFF
+		-DINSTALL_SAMPLES=$(usex examples)
+		-DINSTALL_TEST_CASES=NO
+
+		-DUSE_D3D=NO
+		# no package yet in tree
+		-DUSE_DRACO=OFF
+		-DUSE_EIGEN=$(usex eigen)
+		-DUSE_FFMPEG=$(usex ffmpeg)
+		-DUSE_FREEIMAGE=$(usex freeimage)
+		-DUSE_FREETYPE=ON
+		-DUSE_GLES2=$(usex gles2)
+		# no package in tree
+		-DUSE_OPENVR=OFF
+		-DUSE_RAPIDJSON=$(usex json)
+		-DUSE_TBB=$(usex tbb)
+		-DUSE_VTK=$(usex vtk)
+		-DUSE_XLIB=ON
+	)
+
+	use doc && mycmakeargs+=( -DINSTALL_DOC_Overview=ON )
+
+	if use examples; then
+		mycmakeargs+=(
+			-D3RDPARTY_QT_DIR="${ESYSROOT}"/usr
+			-DBUILD_SAMPLES_QT=ON
+		)
+	fi
+
+	if use vtk; then
+		if has_version ">=sci-libs/vtk-9.1.0"; then
+			mycmakeargs+=(
+				-D3RDPARTY_VTK_DIR="${ESYSROOT}"/usr
+				-D3RDPARTY_VTK_INCLUDE_DIR="${ESYSROOT}"/usr/include/vtk-9.1
+				-D3RDPARTY_VTK_LIBRARY_DIR="${ESYSROOT}"/usr/$(get_libdir)
+			)
+		elif 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
+
+	sed -e "s|lib/|$(get_libdir)/|" \
+		-e "s|VAR_CASROOT|${EPREFIX}/usr|" \
+		< "${FILESDIR}"/${PN}.env.in > "${T}"/99${PN} || die
+
+	# use TBB for memory allocation optimizations
+	if use tbb; then
+		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=2|' -i "${T}"/99${PN} || die
+	fi
+
+	# use internal optimized memory manager and don't clear memory with this
+	# memory manager.
+	if use optimize ; then
+		sed -e 's|^#MMGT_OPT=0$|MMGT_OPT=1|' \
+			-e 's|^#MMGT_CLEAR=1$|MMGT_CLEAR=0|' \
+			-i "${T}"/99${PN} || die
+	fi
+}
+
+src_install() {
+	cmake_src_install
+
+	doenvd "${T}/99${PN}"
+
+	docompress -x /usr/share/doc/${PF}/overview/html
+}