sys-devel/clang-common: Bump to 16.0.0_rc4

Signed-off-by: Michał Górny <mgorny@gentoo.org>

2 files changed, 170 insertions, 0 deletions

diff --git a/sys-devel/clang-common/Manifest b/sys-devel/clang-common/Manifest
index b055e2dfd698..15bdf7aeec4f 100644
--- a/sys-devel/clang-common/Manifest
+++ b/sys-devel/clang-common/Manifest
@@ -4,4 +4,6 @@ DIST llvm-project-15.0.7.src.tar.xz 110936452 BLAKE2B f3d277e2029157329e5be78b78
 DIST llvm-project-15.0.7.src.tar.xz.sig 566 BLAKE2B 47dc8c82d86237b80c6d85f83a6c9a6e9e174cf8e7f367b071e0cd9481d7cd408e991337c5624e07f3f370f26387c814f212808575ed1c1b58404d3e3836b7df SHA512 fc6891b440dd1175eb8df3790590af8d36bc92301660f84744ae15123475aeb900a151e6a8e7998ded27ec4d86871903ad0b89cd61164943054c2e3bc8d8beb2
 DIST llvm-project-16.0.0rc3.src.tar.xz 117914548 BLAKE2B 18ffa35eb73c7cc4626d7b6b7b30aade7171ee2e17fb8d72e79a67185e809f611fefa4cfef17e5cd16822a5a70de2222534dc9f146fc53987eb49ff6a9d98c18 SHA512 d14e5e5ec984a0dc0292a2d27440398b3e32f120c1579517054dcb1a05dbc4ac5f1c6d078a3d6ef8597a71af6f22863868680a972a571839dcd573418b4a4697
 DIST llvm-project-16.0.0rc3.src.tar.xz.sig 566 BLAKE2B 43683d2d7b266a847516f71412bf6236a355462430330fc0da1d624fb8dfbc98bfc982d367baee74d5b4964a9e82e7a4a6ea84bdcff3996d246932f516cced1a SHA512 61adc4dc3eb5a4c11a7f96f9267ff37895e5845a08d48a609a03a2696c1b6bca5af5861a6f28de936c48e6d621bf282170589187f2cb593a912b9078300cf47c
+DIST llvm-project-16.0.0rc4.src.tar.xz 117930024 BLAKE2B 55cf032ad3ba52d2af0942fe1c627319ae95b466122d04b24a917c33e29139fae546d92c375715600190c02426b798803ead0ab7a97d86960cf98fca80e8815c SHA512 8d628205c5b93fe6683b67b97b5c7f98bae945bd87cccebcdac00ddd4362108bd171f077a5196242be0fb909c795592b34bfa1c96c50a744fb68f287fd9781cc
+DIST llvm-project-16.0.0rc4.src.tar.xz.sig 566 BLAKE2B bfcf39070f32e16cfeae699d95d06f184b1331c3af403340c31cc5a973a3bb1faec0b6342445176cebed5819ddf68e4abfdaa8542ec425b1c822fc8c03c03349 SHA512 2af72e3d771e2361873007a944dcccfe81fbdbc3025a2101e03cbc15f1a173d39ceb94c4ae8966b1d7564bf004ee9a5ffa032e2334c0cf7154aea1090d04b00f
 DIST llvm-project-2708869801ae00f4681f6b2d9d69b25b3fce26b6.tar.gz 180523586 BLAKE2B cf918d1e23f922d201a44531c9765b7d8ec2b3b8499ea7954845abcd5fa2687e85b3a34819a583c4f4a6d6e1baa49dbac0b4450cd6b9b322b0f13c88cd7da93c SHA512 18cb00e93d819993a925ae0467d382bc952d82c1eb92dbbb5bb3cdf87043269948670713734ddc3ea4ec50544e54dd11b6747496f7eaa02479374ab9ad075aa5
diff --git a/sys-devel/clang-common/clang-common-16.0.0_rc4.ebuild b/sys-devel/clang-common/clang-common-16.0.0_rc4.ebuild
new file mode 100644
index 000000000000..3165f42a329f
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-16.0.0_rc4.ebuild
@@ -0,0 +1,168 @@
+# 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[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!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=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/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
+			# Options below are conditional on USE=hardened.
+			-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
+}