8 files changed, 134 insertions, 112 deletions
diff --git a/dev-libs/Manifest.gz b/dev-libs/Manifest.gz
index 5791634f6db6..faa68a908e6c 100644
--- a/dev-libs/Manifest.gz
+++ b/dev-libs/Manifest.gz
diff --git a/dev-libs/libclc/Manifest b/dev-libs/libclc/Manifest
index ce7e19eb2e32..90a84f9ea05d 100644
--- a/dev-libs/libclc/Manifest
+++ b/dev-libs/libclc/Manifest
@@ -8,6 +8,8 @@ DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffe
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
 DIST llvm-project-19.1.0-rc2.src.tar.xz 141264388 BLAKE2B 690b4912d9e4a8019b7990934dd6486362337ccb303dca119c0e75aa1063ad452222be1ee965e43b160dfcea20e491a20c289344152666b618712a1d76dc4780 SHA512 508a401e8433b1ac9a399246eb1a3c18faed7c3d41d8c118e77cefbb64cc6d6e171bd41a3e5584f6c84df141ba6819f1a1cce75b5c1ef33e3d2ac239e662d07c
 DIST llvm-project-19.1.0-rc2.src.tar.xz.sig 438 BLAKE2B 1eaf10a1419ecf009c033a8f6ecb6eec86107d81621d5b4665c8d929b05f4845ce0c432017343d7b06f33e6ff6384df9e1d8fc7b9c6efe7f10ef69798891b7e5 SHA512 b46e9a1d40f891c5f3544d8cc6295900bff5dda9a4a526b8db55a42a37ae90deb216b316d2117984e82f4e918d15343e75b3b9e6d6c773866707c3398e032826
+DIST llvm-project-19.1.0-rc3.src.tar.xz 141250388 BLAKE2B 6530bede000d2e4b8ce10b445bfc1f81dc25c2d7121fc953581cd9b6989b3ba197707cd79d3c7b94c055bf2e21b0d07ab3cb401d3f73d22eefba6da4b71dca7b SHA512 3ee4eab848e5e38c396e6f5addf5eb42570d451fc8e7cd77150dc5542f8f710f4a9db51836f7a799996dd1b8194defe4d58efe7c19e5d5e1c5f3dbdda94c0cf3
+DIST llvm-project-19.1.0-rc3.src.tar.xz.sig 438 BLAKE2B 86bad4d4fb805340096473bc603d7a3483f030f62b6f52b64d12c33561fbbb999c2ab69cc94857a32747492c846a5ab631a84da200b03475fd401335373bbccf SHA512 ef0fd2e3e7069fbfd410cbcf71294d1b7182456330ff151348058b5cb0f292edaecb9dcbf613ee4fc979214a23bd3bb8077d71e674635359da36b938dc143266
 DIST llvm-project-db8ef6188cbbe2125e6d60bdef77a535105772df.tar.gz 218416682 BLAKE2B 691e3881e4a60c008c6b766b51ecc856122de1f40242ff1d91ebaa12682fea0a22f84783eb930c42d196f50ba0d3b2010f9010ed73ee7e292fe78c93d6e3f324 SHA512 2dc16a603b60607cc3daee2de0126a567a78c4fff72b2fbcb94c82472bc5ec64ac354ba8592b9a643248a5bfd43b34e2a60f2751a0c9e9e28b7f895fc50a5e9d
 DIST llvm-project-fd7d7882e7fa5a38d4bfde426120d4663718beb4.tar.gz 218217769 BLAKE2B a6c2aa012c342e31527b7e9f85e8fea3549d52530d8f87cd699e094a0aa768d099f9fd2631161ff7f53b4a5011937ed6d1f52b8fa1d23aa34183be1f487d4277 SHA512 c4863fab1a3c03f7f9c42f3501d3a75cebb491343515d77d30b26e5cbd720fc3fd628052099d87ed638e8c424bcbe7a1d066ed857f73da6f243d3d5a76b0e6c5
 EBUILD libclc-15.0.7.ebuild 1668 BLAKE2B ac2bd589fb3c29662799f97b1f649fd22b1b7ce5701879815bc01a05ae88421a830a6a3507b4dead181f24eb4e45c451e8ea1ebbdac2a2de51ddbc3cd9f53c66 SHA512 a3e39fbaddb322360f6362ef21713f375d04e02b2b9a3d43a3d47b26d5d43643a8c654181aef9518aee5f9805d09c446bbbf13342b74f09622e5e1b0c59470b1
@@ -15,6 +17,7 @@ EBUILD libclc-16.0.6.ebuild 1665 BLAKE2B 27ffe7083936c466a749550797d109c7a48fc6a
 EBUILD libclc-17.0.6.ebuild 1749 BLAKE2B 0b083103fc48654357f621bd3c40002fe9030598a4873519b186b601cd75cc1555a3930f26fe884c1970ddf5728c9a7dffc08e97ebdb151e55b80b204d327a4e SHA512 2509e6ff63a86ba1ceef095fab34b49642b7e6866111c289c124bb7ef9d4bad8f07c4927b45994555386536975c8a4c56401860dca25f2ef2014d9153abb4c8f
 EBUILD libclc-18.1.8.ebuild 1302 BLAKE2B f5c4d9d86b2150a602626d7785bae098edf6ff7dce1a07501bbb5b721959827f446d7e468a85be08eb8a6935ebd59264c582d5ab04321f60d0a0bd19da2653e6 SHA512 840ec8e282d4eaac97039f32eae8b05c03fd95128a4d800f190a9b57e154a73fd2c4eeec8c58e7c892684f24b35d1da5c2b52303ec19559b19d7bd75eebf5c1c
 EBUILD libclc-19.1.0_rc2.ebuild 1268 BLAKE2B bcf40564f542b2f2c4eaf493e74226472d1a3d151293a1c09ab4940aa7296018eb237e6254d545a850b2e3ad2f1b0a838dc3f04114c13bb947a8d33cdcba8ee3 SHA512 5bcb5ca819b48dc4b24d5ff0689a19c1d897a560fa89fd761d19cca65e46d185d51ec2745f5091fa9383974e0506fe303d6bdc95327a3be154192d580f92c431
+EBUILD libclc-19.1.0_rc3.ebuild 1268 BLAKE2B bcf40564f542b2f2c4eaf493e74226472d1a3d151293a1c09ab4940aa7296018eb237e6254d545a850b2e3ad2f1b0a838dc3f04114c13bb947a8d33cdcba8ee3 SHA512 5bcb5ca819b48dc4b24d5ff0689a19c1d897a560fa89fd761d19cca65e46d185d51ec2745f5091fa9383974e0506fe303d6bdc95327a3be154192d580f92c431
 EBUILD libclc-20.0.0.9999.ebuild 1268 BLAKE2B bcf40564f542b2f2c4eaf493e74226472d1a3d151293a1c09ab4940aa7296018eb237e6254d545a850b2e3ad2f1b0a838dc3f04114c13bb947a8d33cdcba8ee3 SHA512 5bcb5ca819b48dc4b24d5ff0689a19c1d897a560fa89fd761d19cca65e46d185d51ec2745f5091fa9383974e0506fe303d6bdc95327a3be154192d580f92c431
 EBUILD libclc-20.0.0_pre20240808.ebuild 1268 BLAKE2B bcf40564f542b2f2c4eaf493e74226472d1a3d151293a1c09ab4940aa7296018eb237e6254d545a850b2e3ad2f1b0a838dc3f04114c13bb947a8d33cdcba8ee3 SHA512 5bcb5ca819b48dc4b24d5ff0689a19c1d897a560fa89fd761d19cca65e46d185d51ec2745f5091fa9383974e0506fe303d6bdc95327a3be154192d580f92c431
 EBUILD libclc-20.0.0_pre20240815.ebuild 1268 BLAKE2B bcf40564f542b2f2c4eaf493e74226472d1a3d151293a1c09ab4940aa7296018eb237e6254d545a850b2e3ad2f1b0a838dc3f04114c13bb947a8d33cdcba8ee3 SHA512 5bcb5ca819b48dc4b24d5ff0689a19c1d897a560fa89fd761d19cca65e46d185d51ec2745f5091fa9383974e0506fe303d6bdc95327a3be154192d580f92c431
diff --git a/dev-libs/libclc/libclc-19.1.0_rc3.ebuild b/dev-libs/libclc/libclc-19.1.0_rc3.ebuild
new file mode 100644
index 000000000000..2b8c5e63c257
--- /dev/null
+++ b/dev-libs/libclc/libclc-19.1.0_rc3.ebuild
@@ -0,0 +1,61 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LLVM_COMPAT=( {17..18} )
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake llvm.org llvm-r1 python-any-r1
+
+DESCRIPTION="OpenCL C library"
+HOMEPAGE="https://libclc.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( MIT BSD )"
+SLOT="0"
+IUSE="+spirv video_cards_nvidia video_cards_r600 video_cards_radeonsi"
+
+BDEPEND="
+	${PYTHON_DEPS}
+	$(llvm_gen_dep '
+		sys-devel/clang:${LLVM_SLOT}
+		spirv? ( dev-util/spirv-llvm-translator:${LLVM_SLOT} )
+	')
+"
+
+LLVM_COMPONENTS=( libclc )
+llvm.org_set_globals
+
+pkg_setup() {
+	llvm-r1_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+src_configure() {
+	local libclc_targets=()
+
+	use spirv && libclc_targets+=(
+		"spirv-mesa3d-"
+		"spirv64-mesa3d-"
+	)
+	use video_cards_nvidia && libclc_targets+=(
+		"nvptx--"
+		"nvptx64--"
+		"nvptx--nvidiacl"
+		"nvptx64--nvidiacl"
+	)
+	use video_cards_r600 && libclc_targets+=(
+		"r600--"
+	)
+	use video_cards_radeonsi && libclc_targets+=(
+		"amdgcn--"
+		"amdgcn-mesa-mesa3d"
+		"amdgcn--amdhsa"
+	)
+	[[ ${#libclc_targets[@]} ]] || die "libclc target missing!"
+
+	libclc_targets=${libclc_targets[*]}
+	local mycmakeargs=(
+		-DLIBCLC_TARGETS_TO_BUILD="${libclc_targets// /;}"
+	)
+	cmake_src_configure
+}
diff --git a/dev-libs/mathjax/Manifest b/dev-libs/mathjax/Manifest
index 5f6b7cb6c95c..2997bf149068 100644
--- a/dev-libs/mathjax/Manifest
+++ b/dev-libs/mathjax/Manifest
@@ -3,7 +3,5 @@ DIST mathjax-3.2.2.tar.gz 6191341 BLAKE2B 4884ad28ede1d3d6f6647e04c8a69185a53715
 DIST mathjax-docs-2.7.7.tar.gz 233452 BLAKE2B 280db6c794471d369a17161ad859dc73ddf1494af35114b69356aae41ea52d771f92b0b85ba82df8ed542039af152938f5fda71d752da4410ab183fe6a24ab81 SHA512 25fa97294ae153298d45b449d995c0402c481c6425ea4ebb38dcc509df741aed02d5469a520c8b793b8135b4140a6d1ad6688a42e3cb26004cfd7fcb838c32e6
 DIST mathjax-docs-3.2.2.tar.gz 227724 BLAKE2B 1b2d25073e4f141f5c832f1139e6bcfbdb15c039b820f3662d6fb261faebedac8ea72fb324d76389c35cd28cd41556689501d8795d7a426d735d4eaf88eb61ee SHA512 94167e58deb4f899d5c49a6b1efec24f57fff7aa497a019e9f775e251927c698b7c5598b88087c2964b8cb7238b73152dea01e091b8afaeab8979b396270d429
 EBUILD mathjax-2.7.7-r1.ebuild 2048 BLAKE2B d9970a08756f46c2910acf0e514d11376c52087fa58260024fc99369938fba364bba0dc09c249821f9b5adfa3ca190545f17d1988e1f0d8662a7faa5f9dcff71 SHA512 bcc1c53c1f82e69419753d7d851d780ead0618ce9019e89c9f92cf3126e102f15e5f841c8ed86f37c4392469f336cb15be22a3a5766ba4c81c11191d7cd11b87
-EBUILD mathjax-2.7.7.ebuild 1405 BLAKE2B b1b6a47d751d07cd35c8cc9386e3c67c78cf70ff8f7b8406aeb06a46359128d306e7f18ca08fa5ef24d96d767c7d44e60212a9ea2bf4f9c51d6eea2a760fbd6e SHA512 d8b70496fcf5a8ea511174c0b2a47411b263e8a0d4e95f796f73e3f839beb1ba1b10ebbf75a0677c28cb6c13ea60593db1f07f66f9fdc9da2910420c486ab1da
-EBUILD mathjax-3.2.2-r1.ebuild 1271 BLAKE2B dea7c302234bd829f5b1e0d65519e88d2e628d1dd84cc2f93a39cd0eb5d16f3ee571eee86df28f275bb1a802c0560b1cc0305d751eed46b6a5de86bc4c7c51c2 SHA512 0a143af5a9da849d2cf6f3c9391ac09e6d54cfa0f6c793a9fbc3b4f09312e97233f15e1dd07aeca0b7afedf9efd55e7cade83c6d1d0b802c5ff3875601b08e8e
 EBUILD mathjax-3.2.2-r2.ebuild 1787 BLAKE2B d65b7bf929895e7a6bef4e533faf8b6bd9936dfb4ac1769083b985a778514b10ab90edad9c90632b307230293baa709ac5a49838df11c44c69e36486b66743ce SHA512 3147bacebf83fb870294ff901ec05529014cfa2b824a5032569edfef984e47fa9659c06ca0285fa37030d588699c930f44a74038b07bfd7ed7c565a0b97e6e0e
 MISC metadata.xml 1087 BLAKE2B d29a8ade7189e19a422ffd9dbdc53dff2fbda38f185cb7bd7abb6101aae93326a7b8f68731277804e5cc30d79ef54568e329ee89821fe9a7b025bef2426c60c1 SHA512 2140a39e4253469caf772921e82b323560966cbee3c2ee5af763ffc1c2f439585f267ffa85d17b3b426270c495af0eec81a21c795500fc6c76f2ecada3f7d8e5
diff --git a/dev-libs/mathjax/mathjax-2.7.7.ebuild b/dev-libs/mathjax/mathjax-2.7.7.ebuild
deleted file mode 100644
index 0232c759f19b..000000000000
--- a/dev-libs/mathjax/mathjax-2.7.7.ebuild
+++ /dev/null
@@ -1,63 +0,0 @@
-# Copyright 1999-2022 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-inherit vcs-clean
-
-DESCRIPTION="JavaScript display engine for LaTeX, MathML and AsciiMath"
-HOMEPAGE="https://www.mathjax.org/"
-SRC_URI="https://github.com/mathjax/MathJax/archive/${PV}.tar.gz -> ${P}.tar.gz"
-S="${WORKDIR}"/MathJax-${PV}
-
-LICENSE="Apache-2.0"
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~x64-macos"
-IUSE="doc examples"
-
-RDEPEND="doc? ( app-doc/mathjax-docs:${SLOT} )"
-
-RESTRICT="binchecks strip"
-
-make_webconf() {
-	# web server config file - should we really do this?
-	cat > $1 <<-EOF
-		Alias /MathJax/ ${EPREFIX}${webinstalldir}/
-		Alias /mathjax/ ${EPREFIX}${webinstalldir}/
-
-		<Directory ${EPREFIX}${webinstalldir}>
-			Options None
-			AllowOverride None
-			Order allow,deny
-			Allow from all
-		</Directory>
-	EOF
-}
-
-src_prepare() {
-	default
-	egit_clean
-}
-
-src_install() {
-	local DOCS=( README.md )
-	if use doc; then
-		dodir /usr/share/doc/${P}
-		dosym ../${PN}-docs-${SLOT}/html /usr/share/doc/${P}/html
-	fi
-
-	default
-	if use examples; then
-		insinto /usr/share/${PN}/examples
-		doins -r test/*
-	fi
-	rm -r test docs LICENSE README.md || die
-
-	webinstalldir=/usr/share/${PN}
-	insinto ${webinstalldir}
-	doins -r *
-
-	make_webconf MathJax.conf
-	insinto /etc/httpd/conf.d
-	doins MathJax.conf
-}
diff --git a/dev-libs/mathjax/mathjax-3.2.2-r1.ebuild b/dev-libs/mathjax/mathjax-3.2.2-r1.ebuild
deleted file mode 100644
index 33154f783bc5..000000000000
--- a/dev-libs/mathjax/mathjax-3.2.2-r1.ebuild
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit vcs-clean
-
-DESCRIPTION="JavaScript display engine for LaTeX, MathML and AsciiMath"
-HOMEPAGE="https://www.mathjax.org/"
-SRC_URI="https://github.com/mathjax/MathJax/archive/${PV}.tar.gz -> ${P}.tar.gz"
-S="${WORKDIR}/MathJax-${PV}"
-
-LICENSE="Apache-2.0"
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~x64-macos"
-IUSE="doc"
-
-RDEPEND="doc? ( ~app-doc/mathjax-docs-${PV} )"
-
-src_prepare() {
-	default
-	egit_clean
-}
-
-src_install() {
-	local DOCS=( CONTRIBUTING.md README.md )
-	default
-
-	if use doc; then
-		# We need best_version to determine the right revision for
-		# app-doc/mathjax-docs.
-		local docsPF=$(best_version app-doc/mathjax-docs)
-
-		# Strip the (known) category from the best_version output.
-		docsPF=${docsPF#app-doc/}
-
-		dosym "../${docsPF}/html" "/usr/share/doc/${PF}/html"
-	fi
-
-	insinto "/usr/share/${PN}"
-
-	# Start the install beneath the "es5" directory for compatibility with
-	# Arch, Solus, and Void Linux, but leave a fake "es5" symlink for
-	# packages (like doxygen) that expect it.
-	doins -r es5/*
-	dosym -r "/usr/share/${PN}" "/usr/share/${PN}/es5"
-}
diff --git a/dev-libs/ncnn/Manifest b/dev-libs/ncnn/Manifest
index fbe426a20395..f049ba282068 100644
--- a/dev-libs/ncnn/Manifest
+++ b/dev-libs/ncnn/Manifest
@@ -1,3 +1,5 @@
 DIST ncnn-20240410.tar.gz 12835689 BLAKE2B b4c2ffdf525719dca81d020695f03cd963c3a1f1a0ecc61b6e08c75da212d280210bf1be9b54343a771661fef747675e7f08d0dd9e3ea942adfda1e07d1f6868 SHA512 61865af26aecc6b0eccdfd46c5b3f6e4dd06d7409298051c91d141e64b8c15690f2f982c0aeb3a11d3a575061ab7606710cb0e710f4cb6539c7a14ff440aaaf7
+DIST ncnn-20240820.tar.gz 12963701 BLAKE2B cf92ac70fb0256ae4b78f03d5a670622071f6f0e9b4ad1ee6a18238852f66b3d6b0456d33b2cf2eb691c351b1e8c7b0a8427fb20342029c79f33626f09d9bba5 SHA512 cbef59021231df7409c73a270f147e72daefa1230ccc072aec7225078097ec8e99d4dd82e8aaa93665361c4c24b3812e05f08da5c9a82a575ef2aad70c0828fe
 EBUILD ncnn-20240410.ebuild 1622 BLAKE2B 4a8abed71bf07f561ed17a51adb58388869e4b5d0371f9c8329f30882e98e8b7de90d9279af32a4d8fd11cb29decdf9b6017018ba8446d37a19b8d1cc24d1ed0 SHA512 d08954ae5c5ab8b9298d38a550dc6f31020a750dc0334d368df9791455daad3c5ea504a352bb80b1ea23a14c1ff63e4af6d09ed25c4e6ac8b44c9f37df8fea57
+EBUILD ncnn-20240820.ebuild 1623 BLAKE2B 0b5b7ca5be38a25d11268c772f02c2203080f4ecf71b66c3edbce3e833b1895c86d8c7069c7b4e252a774898bbbe927add94da9753874777e38db10a0ff0679f SHA512 d7901894a2abee5a790cc94e0d1a7526fa39bb9510d794046f282508d7ce20f6af9b46dfa63f1b619fa7c548977ddbfcea40708d88781b0e9051123089c583b8
 MISC metadata.xml 430 BLAKE2B 2623eadab618d93544c297f5c5bbb29575a769e0d4660aa619c66db2ad1909349f2753a426789d6c280a13a452b3434d5ffa2e781aee59b4487a71b023792327 SHA512 0693c619982557394bbabab2ceee6ba06445bcc208bb9e751392a371ca3efbf56b39685fb2d20d4e3da443c5bf7a482ed4581a7349734ad44c1e58dfb6dc241e
diff --git a/dev-libs/ncnn/ncnn-20240820.ebuild b/dev-libs/ncnn/ncnn-20240820.ebuild
new file mode 100644
index 000000000000..2bb0594c7321
--- /dev/null
+++ b/dev-libs/ncnn/ncnn-20240820.ebuild
@@ -0,0 +1,68 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake toolchain-funcs
+
+DESCRIPTION="High-performance neural network inference framework"
+HOMEPAGE="https://github.com/Tencent/ncnn/"
+SRC_URI="
+	https://github.com/Tencent/ncnn/archive/refs/tags/${PV}.tar.gz
+		-> ${P}.tar.gz
+"
+
+LICENSE="BSD ZLIB"
+SLOT="0/${PV}" # currently has unstable ABI that often requires rebuilds
+KEYWORDS="~amd64 ~x86"
+IUSE="openmp tools +vulkan"
+
+# Need the static library to run tests + skip vulkan / GPU:
+# -DNCNN_BUILD_TESTS=ON -DNCNN_SHARED_LIB=OFF -DNCNN_VULKAN=OFF
+RESTRICT="test"
+
+RDEPEND="
+	tools? (
+		dev-cpp/abseil-cpp:=
+		dev-libs/protobuf:=
+	)
+	vulkan? (
+		dev-util/glslang:=
+		media-libs/vulkan-loader
+	)
+"
+DEPEND="
+	${RDEPEND}
+	vulkan? ( dev-util/vulkan-headers )
+"
+
+DOCS=( README.md docs/. )
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DGLSLANG_TARGET_DIR="${ESYSROOT}"/usr/$(get_libdir)/cmake
+		-DNCNN_BUILD_EXAMPLES=no
+		-DNCNN_BUILD_TOOLS=$(usex tools)
+		-DNCNN_OPENMP=$(usex openmp)
+		-DNCNN_PYTHON=no # todo if something needs it
+		-DNCNN_SHARED_LIB=yes
+		-DNCNN_SIMPLEVK=no
+		-DNCNN_SYSTEM_GLSLANG=yes
+		-DNCNN_VERSION=${PV} # avoids libncnn.so.*.%Y%m%d using build date
+		-DNCNN_VULKAN=$(usex vulkan)
+	)
+
+	# temporary workaround due to a >=clang-18 regression (bug #929228)
+	tc-is-clang && [[ $(clang-major-version) -ge 18 ]] &&
+		mycmakeargs+=( -DNCNN_AVX512BF16=no )
+
+	cmake_src_configure
+}