gentoo auto-resync : 03:01:2023 - 02:25:09

5 files changed, 398 insertions, 6 deletions

diff --git a/sys-devel/clang-common/Manifest b/sys-devel/clang-common/Manifest
index 416c16d13574..bd73e12558ad 100644
--- a/sys-devel/clang-common/Manifest
+++ b/sys-devel/clang-common/Manifest
@@ -11,10 +11,12 @@ DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69b
 EBUILD clang-common-13.0.1.ebuild 593 BLAKE2B f7d78facc226d949240f31d10bb01f6a2bbe3c806d7f7c22a78d715d29de74723bedccdeefd029d309b090afe63821e10a1bd27662ff156640820fbca1896bab SHA512 48e5c5f3d4716c15018aa246cf61fbf898c4c459b1f04710da155084a8cf5b8a6df7697c300d297ac48ee1a8a8cff9bc9b4fca712455032f78cb26e9f77ef955
 EBUILD clang-common-14.0.6.ebuild 541 BLAKE2B 87b158e874cf600e23591a8095e0edb4d30d4482600ef8fe38984e9ba9559e6e2226107cd482f355d950392a6a452e1a8ae79d297d5afc3951a7f1c8f6227b5f SHA512 1bd0481468c278f131ec9f87243927b60a59752f4229450559bf8016e9599155a52593810fcdc1cf0aecd4aa1529e8df300d95123a53de18eb326152caafbbef
 EBUILD clang-common-15.0.5.ebuild 3509 BLAKE2B be227d48c3e032de6029d5030eca900d53d2cc0a3fd46323130449a99888f4ab5ccaf73aa14b461b5300ceca70b8c52281bd20a1f71357027f9adc8f638820f2 SHA512 bd511cea98bb9477abbb379bab1bdd2afd2c6f5c255be79792289e11f789322490ec45dbfb76e644179a2fcd2e7ea0314a4abedce111d4f35bc1c51548834e7b
-EBUILD clang-common-15.0.6.9999.ebuild 3432 BLAKE2B 92679a03e3a45df587198ce70dfaebbc674c47229b14040c93353dd4c384636df7ff6591138c8aedf00fcee0f75edef3fc9f3257058f1d8fcdcade0c2be8c244 SHA512 e33fd7582bbe2d3ad4ed3405a92db98d7365d040df39f7e32d2f75b093e346ec88230813c607983398f9c310bc0925b61d9b438905e8177665db123e1b7d064c
+EBUILD clang-common-15.0.6-r1.ebuild 4466 BLAKE2B 7abd03df2be81d2d63631facd99c92c40f9adbc265ea0da860c4dd31ba74fd1bedce28152534a1216f5001702d133840b6aceeaac04e28f417a6ab2bc37bb81c SHA512 c7965d4f162fc7e6ab79afca3c15faabccc7cf783e96cef61caab7cb7bc11a4d5a207dd84829ff04206c99bcceb7a29e225db760134e9d95e437da9e498f1af0
+EBUILD clang-common-15.0.6.9999.ebuild 4382 BLAKE2B f1f02175915bab974fd00560a2f5d2e15c2eddfe73734d98690fbbf9fef8690fdd86aa645e2d9d46818cdf5ad8b20e4466735fc5386c2bc798b610531cb483ff SHA512 486b642fcbe56d28964b4682c9e236d95cf8ea4769c2db6c6c57102a3f7b02a4466e89f4e5a8ca5b0b229d5d458d3fb306bdf92cc08c2dd7f7b973502461b855
 EBUILD clang-common-15.0.6.ebuild 3514 BLAKE2B cf083c79b37a0fb37ccfada41de423024732e7ab6e3b84cd771db1f7665376bf8432c787e298cd9d964d30df46e1e360a10970c8bdb1031fecce4b3776c13845 SHA512 5eeaf65d577ee9569787e98bddee4837ef9cef9e9c0a917a23cb13eb92b6275bd556f3bb9802d4934c311f6fae4a5d3de8939aac1d6de676b5eab1359b77f13e
-EBUILD clang-common-16.0.0.9999.ebuild 3569 BLAKE2B fa58a81a826ae45c5287dcd49ba78ad5a5da4cbcdf7f28def7d8691fef5d622ac3dfb116e21b642f143a541d8cb4cdd136056f3d488dc3d4d8fed6383ed55c04 SHA512 3032daff6a584f1b3490738c967e38f26d860841d606e649c394c18237de3cf71c4ae91ce33ac6ca8f8c991e670b750023c10210626f9cdf7e7e3961405885b7
+EBUILD clang-common-16.0.0.9999.ebuild 4519 BLAKE2B 4e300b5e2f17d1d0dcb77ba9f45eb49c7cbc0f2616d5ffb6be31b3a131c3364921850330ff44e52b8adc0e009a66504ce06c08c223d0e99a1a5b8e12b8757195 SHA512 e353f1e6b69c695d23f85f0c0b542658d3cdb37bb102ab0cf106c81545f03eafaa8d720d31535e37523e276bbdeb31e9c0fd8d9b0754b64404eb8ba15bbe380e
 EBUILD clang-common-16.0.0_pre20221217.ebuild 3575 BLAKE2B 1c2007779af34e1fcb365371e266e0dc86e675792c28a02f53615e207239ab259ee7a71ac2d971a7833a1872409ceb8f8fe95a50e45ef3b8c948af3184dabc38 SHA512 97568c6737ac321f46782ce784a30c31a3d1ce6d2839e38cabfdde9becf56a1b44f2c05ab108fe18681ca021ad8f4d8d6161c5afce773f6b137d2d11f21177ad
 EBUILD clang-common-16.0.0_pre20221226.ebuild 3575 BLAKE2B 1c2007779af34e1fcb365371e266e0dc86e675792c28a02f53615e207239ab259ee7a71ac2d971a7833a1872409ceb8f8fe95a50e45ef3b8c948af3184dabc38 SHA512 97568c6737ac321f46782ce784a30c31a3d1ce6d2839e38cabfdde9becf56a1b44f2c05ab108fe18681ca021ad8f4d8d6161c5afce773f6b137d2d11f21177ad
+EBUILD clang-common-16.0.0_pre20230101-r1.ebuild 4519 BLAKE2B 89425906fde3374711d4ef9a7086b8514c75dc012bcd311a043f3fe2e414f5337999c1ea9cc972a44a582d2646d1dbda4cc8304a007ff19e501a99b6e935ec11 SHA512 29fecb142fc834923adad828c62e8d049d54f349021a012e2fce1efd30af3b666dc77b23d06f343b39e29aca2244a1192c777e4a48950c79e362fc250020855d
 EBUILD clang-common-16.0.0_pre20230101.ebuild 3569 BLAKE2B 5aaee932ed1421cb5dc595d2a236eb84e8df04922625e05c24d8e07f7d00589c9251b0eebaab0dc47858cc1e4206fe26487e9708e824c376b607ab8de09f871d SHA512 f05d7cd43849c81fce6f31c6a97c8122351e87f9a98950edfd6ae9fa32097036be52e31444000e9a1fecd3cf761bfd3d9999842a4f941883dafaedfb657cd946
 MISC metadata.xml 735 BLAKE2B 12ea133df3d7eb9367a65e572ef91893e654d5b77caa27c66e4b5b41ba90ebc5e619eb78dfff2a67183d2c1cbfcf35fa903b2bb75604ce153d5cedfce5346e3c SHA512 8ed6b12d4f2aa1985897a8d81ce898dbc0d14ac222f3d0f259cbe80fbb8b2349dff7677627daeaf39a422f290200da4fac6348abc81c9e35da0ca73a11cfdd83
diff --git a/sys-devel/clang-common/clang-common-15.0.6-r1.ebuild b/sys-devel/clang-common/clang-common-15.0.6-r1.ebuild
new file mode 100644
index 000000000000..7ec66f0dd663
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-15.0.6-r1.ebuild
@@ -0,0 +1,159 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~ppc-macos ~x64-macos"
+IUSE="
+	default-compiler-rt default-libcxx default-lld llvm-libunwind
+	hardened stricter
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind )
+		!llvm-libunwind? ( sys-libs/libunwind )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV} )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${ESYSROOT}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+		#ifndef _FORTIFY_SOURCE
+			#if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+				#define _FORTIFY_SOURCE ${fortify_level}
+			#endif
+		#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
+	if use stricter; then
+		newins - gentoo-stricter.cfg <<-EOF
+			# This file increases the strictness of older clang versions
+			# to match the newest upstream version.
+
+			# clang-16 defaults
+			-Werror=implicit-function-declaration
+			-Werror=implicit-int
+			-Werror=incompatible-function-pointer-types
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			@gentoo-stricter.cfg
+		EOF
+	fi
+
+	local tool
+	for tool in clang{,++,-cpp}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+		EOF
+	done
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-15.0.6.9999.ebuild b/sys-devel/clang-common/clang-common-15.0.6.9999.ebuild
index 3e43f51a0aab..709c93681448 100644
--- a/sys-devel/clang-common/clang-common-15.0.6.9999.ebuild
+++ b/sys-devel/clang-common/clang-common-15.0.6.9999.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -13,7 +13,7 @@ SLOT="0"
 KEYWORDS=""
 IUSE="
 	default-compiler-rt default-libcxx default-lld llvm-libunwind
-	stricter
+	hardened stricter
 "
 
 PDEPEND="
@@ -86,8 +86,41 @@ src_install() {
 		# This file contains flags common to clang, clang++ and clang-cpp.
 		@gentoo-runtimes.cfg
 		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
 	EOF
 
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${ESYSROOT}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+		#ifndef _FORTIFY_SOURCE
+			#if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+				#define _FORTIFY_SOURCE ${fortify_level}
+			#endif
+		#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
 	if use stricter; then
 		newins - gentoo-stricter.cfg <<-EOF
 			# This file increases the strictness of older clang versions
diff --git a/sys-devel/clang-common/clang-common-16.0.0.9999.ebuild b/sys-devel/clang-common/clang-common-16.0.0.9999.ebuild
index e9669ee1adcc..1b9640fcebe0 100644
--- a/sys-devel/clang-common/clang-common-16.0.0.9999.ebuild
+++ b/sys-devel/clang-common/clang-common-16.0.0.9999.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -13,7 +13,7 @@ SLOT="0"
 KEYWORDS=""
 IUSE="
 	default-compiler-rt default-libcxx default-lld llvm-libunwind
-	stricter
+	hardened stricter
 "
 
 PDEPEND="
@@ -86,8 +86,41 @@ src_install() {
 		# This file contains flags common to clang, clang++ and clang-cpp.
 		@gentoo-runtimes.cfg
 		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
 	EOF
 
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${ESYSROOT}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+		#ifndef _FORTIFY_SOURCE
+			#if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+				#define _FORTIFY_SOURCE ${fortify_level}
+			#endif
+		#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
 	if use stricter; then
 		newins - gentoo-stricter.cfg <<-EOF
 			# This file increases the strictness of older clang versions
diff --git a/sys-devel/clang-common/clang-common-16.0.0_pre20230101-r1.ebuild b/sys-devel/clang-common/clang-common-16.0.0_pre20230101-r1.ebuild
new file mode 100644
index 000000000000..350245ab982e
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-16.0.0_pre20230101-r1.ebuild
@@ -0,0 +1,165 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS=""
+IUSE="
+	default-compiler-rt default-libcxx default-lld llvm-libunwind
+	hardened stricter
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind )
+		!llvm-libunwind? ( sys-libs/libunwind )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV} )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${ESYSROOT}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+		#ifndef	_FORTIFY_SOURCE
+			#if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+				#define _FORTIFY_SOURCE ${fortify_level}
+			#endif
+		#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
+	if use stricter; then
+		newins - gentoo-stricter.cfg <<-EOF
+			# This file increases the strictness of older clang versions
+			# to match the newest upstream version.
+
+			# clang-16 defaults
+			-Werror=implicit-function-declaration
+			-Werror=implicit-int
+			-Werror=incompatible-function-pointer-types
+
+			# constructs banned by C2x
+			-Werror=deprecated-non-prototype
+
+			# deprecated but large blast radius
+			#-Werror=strict-prototypes
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			@gentoo-stricter.cfg
+		EOF
+	fi
+
+	local tool
+	for tool in clang{,++,-cpp}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+		EOF
+	done
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}