gentoo auto-resync : 10:02:2024 - 17:34:25

9 files changed, 869 insertions, 160 deletions

diff --git a/eclass/Manifest.gz b/eclass/Manifest.gz
index 33e99f13acc7..cb928087604c 100644
--- a/eclass/Manifest.gz
+++ b/eclass/Manifest.gz
diff --git a/eclass/dotnet-pkg-base.eclass b/eclass/dotnet-pkg-base.eclass
index 1a9d311208e2..a2d95f15a2fb 100644
--- a/eclass/dotnet-pkg-base.eclass
+++ b/eclass/dotnet-pkg-base.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: dotnet-pkg-base.eclass
@@ -68,13 +68,19 @@ if [[ ${CATEGORY}/${PN} != dev-dotnet/dotnet-runtime-nugets ]] ; then
 		die "${ECLASS}: DOTNET_PKG_COMPAT not set"
 	fi
 
-	DOTNET_PKG_RDEPS+=" virtual/dotnet-sdk:${DOTNET_PKG_COMPAT} "
-	DOTNET_PKG_BDEPS+=" ${DOTNET_PKG_RDEPS} "
+	DOTNET_PKG_RDEPS+="
+		virtual/dotnet-sdk:${DOTNET_PKG_COMPAT}
+	"
+	DOTNET_PKG_BDEPS+="
+		${DOTNET_PKG_RDEPS}
+	"
 
 	# Special package "dev-dotnet/csharp-gentoodotnetinfo" used for information
 	# gathering, example for usage see the "dotnet-pkg-base_info" function.
 	if [[ ${CATEGORY}/${PN} != dev-dotnet/csharp-gentoodotnetinfo ]] ; then
-		DOTNET_PKG_BDEPS+=" dev-dotnet/csharp-gentoodotnetinfo "
+		DOTNET_PKG_BDEPS+="
+			dev-dotnet/csharp-gentoodotnetinfo
+		"
 	fi
 
 	IUSE+=" debug "
@@ -222,28 +228,27 @@ dotnet-pkg-base_get-runtime() {
 #
 # Used by "dotnet-pkg_pkg_setup" from the "dotnet-pkg" eclass.
 dotnet-pkg-base_setup() {
-	local dotnet_compat_impl
-	local dotnet_compat_impl_path
-	for dotnet_compat_impl in dotnet{,-bin}-${DOTNET_PKG_COMPAT} ; do
-		dotnet_compat_impl_path="$(type -P "${dotnet_compat_impl}")"
+	local -a impl_dirs=(
+		"${EPREFIX}/usr/$(get_libdir)/dotnet-sdk-${DOTNET_PKG_COMPAT}"
+		"${EPREFIX}/opt/dotnet-sdk-bin-${DOTNET_PKG_COMPAT}"
+	)
+	local impl_exe
+
+	local impl_dir
+	for impl_dir in "${impl_dirs[@]}" ; do
+		impl_exe="${impl_dir}/dotnet"
+
+		if [[ -d "${impl_dir}" ]] && [[ -x "${impl_exe}" ]] ; then
+			DOTNET_PKG_EXECUTABLE="${impl_exe}"
+			DOTNET_ROOT="${impl_dir}"
 
-		if [[ -n ${dotnet_compat_impl_path} ]] ; then
-			DOTNET_PKG_EXECUTABLE="${dotnet_compat_impl}"
 			break
 		fi
 	done
 
-	# Link "DOTNET_PKG_EXECUTABLE" to "dotnet" only for the package build.
-	local dotnet_spoof_path="${T}/dotnet_spoof/${DOTNET_PKG_COMPAT}"
-	mkdir -p "${dotnet_spoof_path}" || die
-	ln -s "${dotnet_compat_impl_path}" "${dotnet_spoof_path}/dotnet" || die
-	export PATH="${dotnet_spoof_path}:${PATH}"
-
-	einfo "Using dotnet SDK \"${DOTNET_PKG_EXECUTABLE}\" from \"${dotnet_compat_impl_path}\"."
-
-	# The picked "DOTNET_PKG_EXECUTABLE" should set "DOTNET_ROOT" internally
-	# and not rely upon this environment variable.
-	unset DOTNET_ROOT
+	einfo "Setting .NET SDK \"DOTNET_ROOT\" to \"${DOTNET_ROOT}\""
+	export DOTNET_ROOT
+	export PATH="${DOTNET_ROOT}:${PATH}"
 
 	DOTNET_PKG_RUNTIME="$(dotnet-pkg-base_get-runtime)"
 	DOTNET_PKG_CONFIGURATION="$(dotnet-pkg-base_get-configuration)"
@@ -304,6 +309,21 @@ dotnet-pkg-base_info() {
 	fi
 }
 
+# @FUNCTION: dotnet-pkg-base_sln-remove
+# @USAGE: <solution> <project>
+# @DESCRIPTION:
+# Remove a project from a given solution file.
+#
+# Used by "dotnet-pkg_remove-bad" from the "dotnet-pkg" eclass.
+dotnet-pkg-base_sln-remove() {
+	debug-print-function "${FUNCNAME[0]}" "${@}"
+
+	[[ -z ${1} ]] && die "${FUNCNAME[0]}: no solution file specified"
+	[[ -z ${2} ]] && die "${FUNCNAME[0]}: no project file specified"
+
+	edotnet sln "${1}" remove "${2}"
+}
+
 # @FUNCTION: dotnet-pkg-base_foreach-solution
 # @USAGE: <directory> <args> ...
 # @DESCRIPTION:
@@ -354,7 +374,7 @@ dotnet-pkg-base_restore() {
 	edotnet restore "${restore_args[@]}"
 }
 
-# @FUNCTION: dotnet-pkg-base_restore_tools
+# @FUNCTION: dotnet-pkg-base_restore-tools
 # @USAGE: [config-file] [args] ...
 # @DESCRIPTION:
 # Restore dotnet tools for a project in the current directory.
@@ -364,7 +384,7 @@ dotnet-pkg-base_restore() {
 #
 # Additionally any number of "args" maybe be given, they are appended to
 # the "dotnet" command invocation.
-dotnet-pkg-base_restore_tools() {
+dotnet-pkg-base_restore-tools() {
 	debug-print-function "${FUNCNAME[0]}" "${@}"
 
 	local -a tool_restore_args=(
@@ -381,6 +401,14 @@ dotnet-pkg-base_restore_tools() {
 	edotnet tool restore "${tool_restore_args[@]}"
 }
 
+# @FUNCTION: dotnet-pkg-base_restore_tools
+# @USAGE: [config-file] [args] ...
+# @DESCRIPTION:
+# DEPRECATED, use "dotnet-pkg-base_restore-tools" instead.
+dotnet-pkg-base_restore_tools() {
+	dotnet-pkg-base_restore-tools "${@}"
+}
+
 # @FUNCTION: dotnet-pkg-base_build
 # @USAGE: [args] ...
 # @DESCRIPTION:
@@ -388,8 +416,8 @@ dotnet-pkg-base_restore_tools() {
 # Build is performed in current directory unless a different directory is
 # passed via "args".
 #
-# Additionally any number of "args" maybe be given, they are appended to
-# the "dotnet" command invocation.
+# Any number of "args" maybe be given, they are appended to the "dotnet"
+# command invocation.
 #
 # Used by "dotnet-pkg_src_compile" from the "dotnet-pkg" eclass.
 dotnet-pkg-base_build() {
@@ -420,27 +448,19 @@ dotnet-pkg-base_build() {
 }
 
 # @FUNCTION: dotnet-pkg-base_test
-# @USAGE: [directory] [args] ...
+# @USAGE: [args] ...
 # @DESCRIPTION:
 # Test the package using "dotnet test" in a specified directory.
+# Test is performed in current directory unless a different directory is
+# passed via "args".
 #
-# Optional "directory" argument defaults to the current directory path.
-#
-# Additionally any number of "args" maybe be given, they are appended to
-# the "dotnet" command invocation.
+# Any number of "args" maybe be given, they are appended to the "dotnet"
+# command invocation.
 #
 # Used by "dotnet-pkg_src_test" from the "dotnet-pkg" eclass.
 dotnet-pkg-base_test() {
 	debug-print-function "${FUNCNAME[0]}" "${@}"
 
-	local directory
-	if [[ -n "${1}" ]] ; then
-		directory="${1}"
-		shift
-	else
-		directory="$(pwd)"
-	fi
-
 	local -a test_args=(
 		--configuration "${DOTNET_PKG_CONFIGURATION}"
 		--no-restore
@@ -448,7 +468,7 @@ dotnet-pkg-base_test() {
 		"${@}"
 	)
 
-	edotnet test "${test_args[@]}" "${directory}"
+	edotnet test "${test_args[@]}"
 }
 
 # @FUNCTION: dotnet-pkg-base_install
@@ -482,7 +502,7 @@ dotnet-pkg-base_launcherinto() {
 	_DOTNET_PKG_LAUNCHERDEST="${1}"
 }
 
-# @FUNCTION: dotnet-pkg-base_append_launchervar
+# @FUNCTION: dotnet-pkg-base_append-launchervar
 # @USAGE: <variable-setting>
 # @DESCRIPTION:
 # Appends a given variable setting to the "_DOTNET_PKG_LAUNCHERVARS".
@@ -498,7 +518,7 @@ dotnet-pkg-base_launcherinto() {
 # @CODE
 #
 # For more info see the "_DOTNET_PKG_LAUNCHERVARS" variable.
-dotnet-pkg-base_append_launchervar() {
+dotnet-pkg-base_append-launchervar() {
 	debug-print-function "${FUNCNAME[0]}" "${@}"
 
 	[[ -z ${1} ]] && die "${FUNCNAME[0]}: no variable setting specified"
@@ -506,6 +526,14 @@ dotnet-pkg-base_append_launchervar() {
 	_DOTNET_PKG_LAUNCHERVARS+=( "${1}" )
 }
 
+# @FUNCTION: dotnet-pkg-base_append_launchervar
+# @USAGE: <variable-setting>
+# @DESCRIPTION:
+# DEPRECATED, use "dotnet-pkg-base_append-launchervar" instead.
+dotnet-pkg-base_append_launchervar() {
+	dotnet-pkg-base_append-launchervar "${@}"
+}
+
 # @FUNCTION: dotnet-pkg-base_dolauncher
 # @USAGE: <executable-path> [filename]
 # @DESCRIPTION:
@@ -573,7 +601,7 @@ dotnet-pkg-base_dolauncher() {
 	doexe "${executable_target}"
 }
 
-# @FUNCTION: dotnet-pkg-base_dolauncher_portable
+# @FUNCTION: dotnet-pkg-base_dolauncher-portable
 # @USAGE: <dll-path> <filename>
 # @DESCRIPTION:
 # Make a wrapper script to launch a .NET DLL file built from a .NET package.
@@ -584,12 +612,12 @@ dotnet-pkg-base_dolauncher() {
 #
 # Example:
 # @CODE
-# dotnet-pkg-base_dolauncher_portable \
+# dotnet-pkg-base_dolauncher-portable \
 #     /usr/share/${P}/GentooDotnetInfo.dll gentoo-dotnet-info
 # @CODE
 #
 # The path is prepended by "EPREFIX".
-dotnet-pkg-base_dolauncher_portable() {
+dotnet-pkg-base_dolauncher-portable() {
 	debug-print-function "${FUNCNAME[0]}" "${@}"
 
 	local dll_path="${1}"
@@ -615,4 +643,12 @@ dotnet-pkg-base_dolauncher_portable() {
 	doexe "${executable_target}"
 }
 
+# @FUNCTION: dotnet-pkg-base_dolauncher_portable
+# @USAGE: <dll-path> <filename>
+# @DESCRIPTION:
+# DEPRECATED, use "dotnet-pkg-base_dolauncher-portable" instead.
+dotnet-pkg-base_dolauncher_portable() {
+	dotnet-pkg-base_dolauncher-portable "${@}"
+}
+
 fi
diff --git a/eclass/dotnet-pkg.eclass b/eclass/dotnet-pkg.eclass
index 9d78f463be77..59a8ae799f86 100644
--- a/eclass/dotnet-pkg.eclass
+++ b/eclass/dotnet-pkg.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: dotnet-pkg.eclass
@@ -48,6 +48,24 @@ inherit dotnet-pkg-base
 RDEPEND+=" ${DOTNET_PKG_RDEPS} "
 BDEPEND+=" ${DOTNET_PKG_BDEPS} "
 
+# @ECLASS_VARIABLE: DOTNET_PKG_BAD_PROJECTS
+# @DESCRIPTION:
+# List of projects to remove from all found solution (".sln") files.
+# The projects are removed in the "dotnet-pkg_src_prepare" function.
+#
+# This variable should be set after inheriting "dotnet-pkg.eclass".
+#
+# Default value is an empty array.
+#
+# Example:
+# @CODE
+# DOTNET_PKG_BAD_PROJECTS=( "${S}/BrokenTests" )
+# DOTNET_PKG_PROJECTS=( "${S}/DotnetProject" )
+# @CODE
+#
+# For more info see: "dotnet-pkg_remove-bad" function.
+DOTNET_PKG_BAD_PROJECTS=()
+
 # @ECLASS_VARIABLE: DOTNET_PKG_PROJECTS
 # @DEFAULT_UNSET
 # @DESCRIPTION:
@@ -138,6 +156,29 @@ DOTNET_PKG_BUILD_EXTRA_ARGS=()
 # For more info see the "DOTNET_PROJECT" variable and "dotnet-pkg_src_test".
 DOTNET_PKG_TEST_EXTRA_ARGS=()
 
+# @FUNCTION: dotnet-pkg_force-compat
+# @DESCRIPTION:
+# This function appends special options to all "DOTNET_PKG_*_EXTRA_ARGS"
+# variables in an attempt to force compatibility to the picked
+# "DOTNET_PKG_COMPAT" .NET SDK version.
+#
+# Call this function post-inherit.
+dotnet-pkg_force-compat() {
+	if [[ -z ${DOTNET_PKG_COMPAT} ]] ; then
+		die "DOTNET_PKG_COMPAT is not set"
+	fi
+
+	local -a force_extra_args=(
+		-p:RollForward=Major
+		-p:TargetFramework="net${DOTNET_PKG_COMPAT}"
+		-p:TargetFrameworks="net${DOTNET_PKG_COMPAT}"
+	)
+
+	DOTNET_PKG_RESTORE_EXTRA_ARGS+=( "${force_extra_args[@]}" )
+	DOTNET_PKG_BUILD_EXTRA_ARGS+=( "${force_extra_args[@]}" )
+	DOTNET_PKG_TEST_EXTRA_ARGS+=( "${force_extra_args[@]}" )
+}
+
 # @FUNCTION: dotnet-pkg_pkg_setup
 # @DESCRIPTION:
 # Default "pkg_setup" for the "dotnet-pkg" eclass.
@@ -161,14 +202,38 @@ dotnet-pkg_src_unpack() {
 	nuget_unpack-non-nuget-archives
 }
 
+# @FUNCTION: dotnet-pkg_remove-bad
+# @USAGE: <solution>
+# @DESCRIPTION:
+# Remove all projects specified by "DOTNET_PKG_BAD_PROJECTS" from a given
+# solution file.
+#
+# Used by "dotnet-pkg_src_prepare".
+dotnet-pkg_remove-bad() {
+	debug-print-function "${FUNCNAME[0]}" "${@}"
+
+	[[ -z ${1} ]] && die "${FUNCNAME[0]}: no solution file specified"
+
+	local bad_project
+	for bad_project in "${DOTNET_PKG_BAD_PROJECTS[@]}" ; do
+		nonfatal dotnet-pkg-base_sln-remove "${1}" "${bad_project}"
+	done
+}
+
 # @FUNCTION: dotnet-pkg_src_prepare
 # @DESCRIPTION:
 # Default "src_prepare" for the "dotnet-pkg" eclass.
 # Prepare the package sources.
 #
-# Run "dotnet-pkg-base_remove-global-json".
+# Run "dotnet-pkg-base_remove-global-json", "dotnet-pkg-base_remove-bad"
+# for each found solution file and prepare for using Nuget.
 dotnet-pkg_src_prepare() {
 	dotnet-pkg-base_remove-global-json
+	dotnet-pkg-base_foreach-solution "$(pwd)" dotnet-pkg_remove-bad
+
+	find "$(pwd)" -maxdepth 1 -iname "nuget.config" -delete ||
+		die "${FUNCNAME[0]}: failed to remove unwanted \"NuGet.config\" config files"
+	nuget_writeconfig "$(pwd)/"
 
 	default
 }
diff --git a/eclass/llvm-r1.eclass b/eclass/llvm-r1.eclass
new file mode 100644
index 000000000000..658946a1ecbd
--- /dev/null
+++ b/eclass/llvm-r1.eclass
@@ -0,0 +1,250 @@
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: llvm-r1.eclass
+# @MAINTAINER:
+# Michał Górny <mgorny@gentoo.org>
+# @AUTHOR:
+# Michał Górny <mgorny@gentoo.org>
+# @SUPPORTED_EAPIS: 8
+# @PROVIDES: llvm-utils
+# @BLURB: Provide LLVM_SLOT to build against slotted LLVM
+# @DESCRIPTION:
+# An eclass to reliably depend on a set of LLVM-related packages
+# in a matching slot.  To use the eclass:
+#
+# 1. Set LLVM_COMPAT to the list of supported LLVM slots.
+# 2. Use llvm_gen_dep and/or LLVM_USEDEP to add appropriate
+#    dependencies.
+# 3. Use llvm-r1_pkg_setup, get_llvm_prefix or LLVM_SLOT.
+#
+# The eclass sets IUSE and REQUIRED_USE.  The flag corresponding
+# to the newest supported stable LLVM slot (or the newest testing,
+# if no stable slots are supported) is enabled by default.
+#
+# Example:
+# @CODE
+# LLVM_COMPAT=( {16..18} )
+#
+# inherit llvm-r1
+#
+# DEPEND="
+#   dev-libs/libfoo[${LLVM_USEDEP}]
+#   $(llvm_gen_dep '
+#     sys-devel/clang:${LLVM_SLOT}
+#     sys-devel/llvm:${LLVM_SLOT}
+#   ')
+# "
+# @CODE
+
+case ${EAPI} in
+	8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ ! ${_LLVM_R1_ECLASS} ]]; then
+_LLVM_R1_ECLASS=1
+
+inherit llvm-utils
+
+# == internal control knobs ==
+
+# @ECLASS_VARIABLE: _LLVM_OLDEST_SLOT
+# @INTERNAL
+# @DESCRIPTION:
+# Oldest supported LLVM slot.  This is used to automatically filter out
+# unsupported LLVM_COMPAT values.
+_LLVM_OLDEST_SLOT=15
+
+# @ECLASS_VARIABLE: _LLVM_NEWEST_STABLE
+# @INTERNAL
+# @DESCRIPTION:
+# The newest stable LLVM version.  Versions newer than that won't
+# be automatically enabled via USE defaults.
+_LLVM_NEWEST_STABLE=17
+
+# == control variables ==
+
+# @ECLASS_VARIABLE: LLVM_COMPAT
+# @PRE_INHERIT
+# @REQUIRED
+# @DESCRIPTION:
+# A list of LLVM slots supported by the package, oldest to newest.
+#
+# Example:
+# @CODE
+# LLVM_COMPAT=( {15..17} )
+# @CODE
+
+# @ECLASS_VARIABLE: LLVM_OPTIONAL
+# @PRE_INHERIT
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# If set to a non-empty value, disables setting REQUIRED_USE
+# and exporting pkg_setup.  You have to add LLVM_REQUIRED_USE and call
+# pkg_setup manually, with appropriate USE conditions.
+
+# == global metadata ==
+
+# @ECLASS_VARIABLE: LLVM_REQUIRED_USE
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# An eclass-generated REQUIRED_USE string that enforces selecting
+# exactly one slot.  It LLVM_OPTIONAL is set, it needs to be copied
+# into REQUIRED_USE, under appropriate USE conditions.  Otherwise,
+# it is added automatically.
+
+# @ECLASS_VARIABLE: LLVM_USEDEP
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# An eclass-generated USE dependency string that can be applied to other
+# packages using the same eclass, to enforce a LLVM slot match.
+
+_llvm_set_globals() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	if [[ ${LLVM_COMPAT@a} != *a* ]]; then
+		die "LLVM_COMPAT must be set to an array before inheriting ${ECLASS}"
+	fi
+
+	local stable=() unstable=()
+	local x
+	for x in "${LLVM_COMPAT[@]}"; do
+		if [[ ${x} -gt ${_LLVM_NEWEST_STABLE} ]]; then
+			unstable+=( "${x}" )
+		elif [[ ${x} -ge ${_LLVM_OLDEST_SLOT} ]]; then
+			stable+=( "${x}" )
+		fi
+	done
+
+	_LLVM_SLOTS=( "${stable[@]}" "${unstable[@]}" )
+	if [[ ! ${_LLVM_SLOTS[@]} ]]; then
+		die "LLVM_COMPAT does not contain any valid versions (all older than ${_LLVM_OLDEST_SLOT}?)"
+	fi
+
+	if [[ ${stable[@]} ]]; then
+		IUSE="+llvm_slot_${stable[-1]}"
+		unset 'stable[-1]'
+	else
+		IUSE="+llvm_slot_${unstable[-1]}"
+		unset 'unstable[-1]'
+	fi
+	local nondefault=( "${stable[@]}" "${unstable[@]}" )
+	IUSE+=" ${nondefault[*]/#/llvm_slot_}"
+
+	local flags=( "${_LLVM_SLOTS[@]/#/llvm_slot_}" )
+	LLVM_REQUIRED_USE="^^ ( ${flags[*]} )"
+	local usedep_flags=${flags[*]/%/(-)?}
+	LLVM_USEDEP=${usedep_flags// /,}
+	readonly LLVM_REQUIRED_USE LLVM_USEDEP
+
+	if [[ ! ${LLVM_OPTIONAL} ]]; then
+		REQUIRED_USE=${LLVM_REQUIRED_USE}
+	fi
+}
+_llvm_set_globals
+unset -f _llvm_set_globals
+
+# == metadata helpers ==
+
+# @FUNCTION: llvm_gen_dep
+# @USAGE: <dependency>
+# @DESCRIPTION:
+# Output a dependency block, repeating "<dependency>" conditionally
+# to all llvm_slot_* USE flags.  Any occurences of '${LLVM_SLOT}'
+# within the block will be substituted for the respective slot.
+#
+# Example:
+# @CODE
+# DEPEND="
+#   $(llvm_gen_dep '
+#     sys-devel/clang:${LLVM_SLOT}
+#     sys-devel/llvm:${LLVM_SLOT}
+#   ')
+# "
+# @CODE
+llvm_gen_dep() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${#} -ne 1 ]] && die "Usage: ${FUNCNAME} <dependency>"
+
+	local dep=${1}
+
+	local slot
+	for slot in "${_LLVM_SLOTS[@]}"; do
+		echo "llvm_slot_${slot}? ( ${dep//\$\{LLVM_SLOT\}/${slot}} )"
+	done
+}
+
+# == ebuild helpers ==
+
+# @FUNCTION: get_llvm_prefix
+# @USAGE: [-b|-d]
+# @DESCRIPTION:
+# Output the path to the selected LLVM slot.
+#
+# With no option or "-d", the path is prefixed by ESYSROOT.  LLVM
+# dependencies should be in DEPEND then.
+#
+# With "-b" option, the path is prefixed by BROOT. LLVM dependencies
+# should be in BDEPEND then.
+get_llvm_prefix() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${#} -gt 1 ]] && die "Usage: ${FUNCNAME} [-b|-d]"
+
+	local prefix
+	case ${1--d} in
+		-d)
+			prefix=${ESYSROOT}
+			;;
+		-b)
+			prefix=${BROOT}
+			;;
+		*)
+			die "${FUNCNAME}: invalid option: ${1}"
+			;;
+	esac
+
+	echo "${prefix}/usr/lib/llvm/${LLVM_SLOT}"
+}
+
+# @FUNCTION: llvm-r1_pkg_setup
+# @DESCRIPTION:
+# Prepend the appropriate executable directory for the selected LLVM
+# slot to PATH.
+#
+# The PATH manipulation is only done for source builds. The function
+# is a no-op when installing a binary package.
+#
+# If any other behavior is desired, the contents of the function
+# should be inlined into the ebuild and modified as necessary.
+#
+# Note that this function is not exported if LLVM_OPTIONAL is set.
+# In that case, it needs to be called manually.
+llvm-r1_pkg_setup() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	if [[ ${MERGE_TYPE} != binary ]]; then
+		[[ -z ${LLVM_SLOT} ]] && die "LLVM_SLOT unset (broken USE_EXPAND?)"
+
+		llvm_fix_clang_version CC CPP CXX
+		# keep in sync with profiles/features/llvm/make.defaults!
+		llvm_fix_tool_path ADDR2LINE AR AS LD NM OBJCOPY OBJDUMP RANLIB
+		llvm_fix_tool_path READELF STRINGS STRIP
+
+		# Set LLVM_CONFIG to help Meson (bug #907965) but only do it
+		# for empty ESYSROOT (as a proxy for "are we cross-compiling?").
+		if [[ -z ${ESYSROOT} ]] ; then
+			llvm_fix_tool_path LLVM_CONFIG
+		fi
+
+		llvm_prepend_path "${LLVM_SLOT}"
+	fi
+}
+
+fi
+
+if [[ ! ${LLVM_OPTIONAL} ]]; then
+	EXPORT_FUNCTIONS pkg_setup
+fi
diff --git a/eclass/llvm-utils.eclass b/eclass/llvm-utils.eclass
new file mode 100644
index 000000000000..532e609679b8
--- /dev/null
+++ b/eclass/llvm-utils.eclass
@@ -0,0 +1,153 @@
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: llvm-utils.eclass
+# @MAINTAINER:
+# Michał Górny <mgorny@gentoo.org>
+# @AUTHOR:
+# Michał Górny <mgorny@gentoo.org>
+# @SUPPORTED_EAPIS: 7 8
+# @BLURB: Common utility functions for building against installed LLVM
+# @DESCRIPTION:
+# The utility eclass providing shared functions reused between
+# llvm.eclass and llvm-r1.eclass.  It may also be used directly
+# in ebuilds.
+
+case ${EAPI} in
+	7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ ! ${_LLVM_UTILS_ECLASS} ]]; then
+_LLVM_UTILS_ECLASS=1
+
+# @FUNCTION: llvm_tuple_to_target
+# @USAGE: [<tuple>]
+# @DESCRIPTION:
+# Translate a tuple into a target suitable for LLVM_TARGETS.
+# Defaults to ${CHOST} if not specified.
+llvm_tuple_to_target() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${#} -gt 1 ]] && die "Usage: ${FUNCNAME} [<tuple>]"
+
+	case ${1:-${CHOST}} in
+		aarch64*) echo "AArch64";;
+		amdgcn*) echo "AMDGPU";;
+		arc*) echo "ARC";;
+		arm*) echo "ARM";;
+		avr*) echo "AVR";;
+		bpf*) echo "BPF";;
+		csky*) echo "CSKY";;
+		loong*) echo "LoongArch";;
+		m68k*) echo "M68k";;
+		mips*) echo "Mips";;
+		msp430*) echo "MSP430";;
+		nvptx*) echo "NVPTX";;
+		powerpc*) echo "PowerPC";;
+		riscv*) echo "RISCV";;
+		sparc*) echo "Sparc";;
+		s390*) echo "SystemZ";;
+		x86_64*|i?86*) echo "X86";;
+		xtensa*) echo "Xtensa";;
+		*) die "Unknown LLVM target for tuple ${1:-${CHOST}}"
+	esac
+}
+
+# @FUNCTION: llvm_fix_clang_version
+# @USAGE: <variable-name>...
+# @DESCRIPTION:
+# Fix the clang compiler name in specified variables to include
+# the major version, to prevent PATH alterations from forcing an older
+# clang version being used.
+llvm_fix_clang_version() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	local shopt_save=$(shopt -p -o noglob)
+	set -f
+	local var
+	for var; do
+		local split=( ${!var} )
+		case ${split[0]} in
+			*clang|*clang++|*clang-cpp)
+				local version=()
+				read -r -a version < <("${split[0]}" --version)
+				local major=${version[-1]%%.*}
+				if [[ -n ${major//[0-9]} ]]; then
+					die "${var}=${!var} produced invalid --version: ${version[*]}"
+				fi
+
+				split[0]+=-${major}
+				if ! type -P "${split[0]}" &>/dev/null; then
+					die "${split[0]} does not seem to exist"
+				fi
+				declare -g "${var}=${split[*]}"
+				;;
+		esac
+	done
+	${shopt_save}
+}
+
+# @FUNCTION: llvm_fix_tool_path
+# @USAGE: <variable-name>...
+# @DESCRIPTION:
+# Fix the LLVM tools referenced in the specified variables to their
+# current location, to prevent PATH alterations from forcing older
+# versions being used.
+llvm_fix_tool_path() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	local shopt_save=$(shopt -p -o noglob)
+	set -f
+	local var
+	for var; do
+		local split=( ${!var} )
+		local path=$(type -P ${split[0]} 2>/dev/null)
+		# if it resides in one of the LLVM prefixes, it's an LLVM tool!
+		if [[ ${path} == "${BROOT}/usr/lib/llvm"* ]]; then
+			split[0]=${path}
+			declare -g "${var}=${split[*]}"
+		fi
+	done
+	${shopt_save}
+}
+
+# @FUNCTION: llvm_prepend_path
+# @USAGE: <slot>
+# @DESCRIPTION:
+# Prepend the path to the specified LLVM slot to PATH variable,
+# and reexport it.
+llvm_prepend_path() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${#} -ne 1 ]] && die "Usage: ${FUNCNAME} <slot>"
+	local slot=${1}
+
+	local llvm_path=${ESYSROOT}/usr/lib/llvm/${slot}/bin
+	local IFS=:
+	local split_path=( ${PATH} )
+	local new_path=()
+	local x added=
+
+	for x in "${split_path[@]}"; do
+		if [[ ${x} == */usr/lib/llvm/*/bin ]]; then
+			# prepend new path in front of the first LLVM version found
+			if [[ ! ${added} ]]; then
+				new_path+=( "${llvm_path}" )
+				added=1
+			fi
+			# remove duplicate copies of the same path
+			if [[ ${x} == ${llvm_path} ]]; then
+				# deduplicate
+				continue
+			fi
+		fi
+		new_path+=( "${x}" )
+	done
+	# ...or to the end of PATH
+	[[ ${added} ]] || new_path+=( "${llvm_path}" )
+
+	export PATH=${new_path[*]}
+}
+
+fi
diff --git a/eclass/llvm.eclass b/eclass/llvm.eclass
index 91cc68d966fe..e297fe992c9f 100644
--- a/eclass/llvm.eclass
+++ b/eclass/llvm.eclass
@@ -7,6 +7,7 @@
 # @AUTHOR:
 # Michał Górny <mgorny@gentoo.org>
 # @SUPPORTED_EAPIS: 7 8
+# @PROVIDES: llvm-utils
 # @BLURB: Utility functions to build against slotted LLVM
 # @DESCRIPTION:
 # The llvm.eclass provides utility functions that can be used to build
@@ -64,6 +65,8 @@ esac
 if [[ ! ${_LLVM_ECLASS} ]]; then
 _LLVM_ECLASS=1
 
+inherit llvm-utils
+
 # make sure that the versions installing straight into /usr/bin
 # are uninstalled
 DEPEND="!!sys-devel/llvm:0"
@@ -174,95 +177,6 @@ get_llvm_prefix() {
 	echo "${prefix}/usr/lib/llvm/$(get_llvm_slot "${@}")"
 }
 
-# @FUNCTION: llvm_tuple_to_target
-# @USAGE: [<tuple>]
-# @DESCRIPTION:
-# Translate a tuple into a target suitable for LLVM_TARGETS.
-# Defaults to ${CHOST} if not specified.
-llvm_tuple_to_target() {
-	debug-print-function ${FUNCNAME} "${@}"
-
-	case ${1:-${CHOST}} in
-		aarch64*) echo "AArch64";;
-		amdgcn*) echo "AMDGPU";;
-		arc*) echo "ARC";;
-		arm*) echo "ARM";;
-		avr*) echo "AVR";;
-		bpf*) echo "BPF";;
-		csky*) echo "CSKY";;
-		loong*) echo "LoongArch";;
-		m68k*) echo "M68k";;
-		mips*) echo "Mips";;
-		msp430*) echo "MSP430";;
-		nvptx*) echo "NVPTX";;
-		powerpc*) echo "PowerPC";;
-		riscv*) echo "RISCV";;
-		sparc*) echo "Sparc";;
-		s390*) echo "SystemZ";;
-		x86_64*|i?86*) echo "X86";;
-		xtensa*) echo "Xtensa";;
-		*) die "Unknown LLVM target for tuple ${1:-${CHOST}}"
-	esac
-}
-
-# @FUNCTION: llvm_fix_clang_version
-# @USAGE: <variable-name>...
-# @DESCRIPTION:
-# Fix the clang compiler name in specified variables to include
-# the major version, to prevent PATH alterations from forcing an older
-# clang version being used.
-llvm_fix_clang_version() {
-	debug-print-function ${FUNCNAME} "${@}"
-
-	local shopt_save=$(shopt -p -o noglob)
-	set -f
-	local var
-	for var; do
-		local split=( ${!var} )
-		case ${split[0]} in
-			*clang|*clang++|*clang-cpp)
-				local version=()
-				read -r -a version < <("${split[0]}" --version)
-				local major=${version[-1]%%.*}
-				if [[ -n ${major//[0-9]} ]]; then
-					die "${var}=${!var} produced invalid --version: ${version[*]}"
-				fi
-
-				split[0]+=-${major}
-				if ! type -P "${split[0]}" &>/dev/null; then
-					die "${split[0]} does not seem to exist"
-				fi
-				declare -g "${var}=${split[*]}"
-				;;
-		esac
-	done
-	${shopt_save}
-}
-
-# @FUNCTION: llvm_fix_tool_path
-# @USAGE: <variable-name>...
-# @DESCRIPTION:
-# Fix the LLVM tools referenced in the specified variables to their
-# current location, to prevent PATH alterations from forcing older
-# versions being used.
-llvm_fix_tool_path() {
-	debug-print-function ${FUNCNAME} "${@}"
-
-	local shopt_save=$(shopt -p -o noglob)
-	set -f
-	local var
-	for var; do
-		local split=( ${!var} )
-		local path=$(type -P ${split[0]} 2>/dev/null)
-		# if it resides in one of the LLVM prefixes, it's an LLVM tool!
-		if [[ ${path} == "${BROOT}/usr/lib/llvm"* ]]; then
-			split[0]=${path}
-			declare -g "${var}=${split[*]}"
-		fi
-	done
-	${shopt_save}
-}
-
 # @FUNCTION: llvm_pkg_setup
 # @DESCRIPTION:
 # Prepend the appropriate executable directory for the newest
@@ -298,30 +212,7 @@ llvm_pkg_setup() {
 			llvm_fix_tool_path LLVM_CONFIG
 		fi
 
-		local prefix=${ESYSROOT}
-		local llvm_path=${prefix}/usr/lib/llvm/${LLVM_SLOT}/bin
-		local IFS=:
-		local split_path=( ${PATH} )
-		local new_path=()
-		local x added=
-
-		# prepend new path before first LLVM version found
-		for x in "${split_path[@]}"; do
-			if [[ ${x} == */usr/lib/llvm/*/bin ]]; then
-				if [[ ${x} != ${llvm_path} ]]; then
-					new_path+=( "${llvm_path}" )
-				elif [[ ${added} && ${x} == ${llvm_path} ]]; then
-					# deduplicate
-					continue
-				fi
-				added=1
-			fi
-			new_path+=( "${x}" )
-		done
-		# ...or to the end of PATH
-		[[ ${added} ]] || new_path+=( "${llvm_path}" )
-
-		export PATH=${new_path[*]}
+		llvm_prepend_path "${LLVM_SLOT}"
 	fi
 }
 
diff --git a/eclass/nuget.eclass b/eclass/nuget.eclass
index 669e21300ef2..ac8629848eca 100644
--- a/eclass/nuget.eclass
+++ b/eclass/nuget.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: nuget.eclass
@@ -226,6 +226,51 @@ nuget_unpack-non-nuget-archives() {
 	done
 }
 
+# @FUNCTION: nuget_writeconfig
+# @USAGE: <path>
+# @DESCRIPTION:
+# Create a "NuGet.config" config file that can be used to overwrite any other
+# Nuget configuration file in order to prevent Nuget executable from accessing
+# the network or undesired NuPkg package sources.
+#
+# If given path ends with a slash, a file name "NuGet.config" is assumed,
+# otherwise contents are written to specified file path exactly.
+#
+# Created configuration file clears all other NuPkg sources and inserts
+# "NUGET_PACKAGES" as the only one source.
+#
+# This function is used inside "dotnet-pkg_src_prepare"
+# from the "dotnet-pkg" eclass.
+#
+# This function is used inside "dotnet-pkg_src_prepare"
+# from the "dotnet-pkg" eclass.
+nuget_writeconfig() {
+	debug-print-function "${FUNCNAME[0]}" "${@}"
+
+	case "${1}" in
+		"" ) die "${FUNCNAME[0]}: no directory/file path specified" ;;
+		*/ ) mkdir -p "${1}" || die ;;
+	esac
+
+	local nuget_config_path
+
+	if [[ -d "${1}" ]] ; then
+		nuget_config_path="${1}/NuGet.config"
+	else
+		nuget_config_path="${1}"
+	fi
+
+	cat <<-EOF > "${nuget_config_path}" || die
+	<?xml version="1.0" encoding="utf-8"?>
+	<configuration>
+		<packageSources>
+			<clear />
+			<add key="nuget" value="${NUGET_PACKAGES}" />
+		</packageSources>
+	</configuration>
+	EOF
+}
+
 # @FUNCTION: nuget_donuget
 # @USAGE: <nuget-path> ...
 # @DESCRIPTION:
diff --git a/eclass/tests/llvm-r1.sh b/eclass/tests/llvm-r1.sh
new file mode 100755
index 000000000000..9958f5bba420
--- /dev/null
+++ b/eclass/tests/llvm-r1.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+source tests-common.sh || exit
+
+EAPI=8
+
+test_globals() {
+	local compat=${1}
+	local expected_iuse=${2}
+	local expected_required_use=${3}
+	local expected_usedep=${4}
+	local x
+
+	tbegin "LLVM_COMPAT=( ${compat} )"
+
+	(
+		local fail=0
+		local LLVM_COMPAT=( ${compat} )
+
+		inherit llvm-r1
+
+		if [[ ${IUSE%% } != ${expected_iuse} ]]; then
+			eerror "          IUSE: ${IUSE%% }"
+			eerror "does not match: ${expected_iuse}"
+			fail=1
+		fi
+
+		if [[ ${REQUIRED_USE} != ${expected_required_use} ]]; then
+			eerror "  REQUIRED_USE: ${REQUIRED_USE}"
+			eerror "does not match: ${expected_required_use}"
+			fail=1
+		fi
+
+		if [[ ${LLVM_USEDEP} != ${expected_usedep} ]]; then
+			eerror "   LLVM_USEDEP: ${LLVM_USEDEP}"
+			eerror "does not match: ${expected_usedep}"
+			fail=1
+		fi
+
+		exit "${fail}"
+	)
+
+	tend "${?}"
+}
+
+test_gen_dep() {
+	local arg=${1}
+	local expected
+	read -r -d '' expected
+
+	tbegin "llvm_gen_dep ${arg}"
+	local value=$(llvm_gen_dep "${arg}")
+
+	if [[ ${value} != ${expected} ]]; then
+		eerror "python_get_usedep ${arg}"
+		eerror "gave:"
+		eerror "  ${value}"
+		eerror "expected:"
+		eerror "  ${expected}"
+	fi
+	tend ${?}
+}
+
+test_fix_clang_version() {
+	local var=${1}
+	local tool=${2}
+	local version=${3}
+	local expected=${4}
+
+	eval "${tool}() {
+		cat <<-EOF
+			clang version ${version}
+			Target: x86_64-pc-linux-gnu
+			Thread model: posix
+			InstalledDir: /usr/lib/llvm/17/bin
+			Configuration file: /etc/clang/x86_64-pc-linux-gnu-clang.cfg
+		EOF
+	}"
+
+	declare -g ${var}=${tool}
+	tbegin "llvm_fix_clang_version ${var}=${tool} for ${version}"
+	llvm_fix_clang_version "${var}"
+	if [[ ${!var} != ${expected} ]]; then
+		eerror "llvm_fix_clang_version ${var}"
+		eerror "    gave: ${!var}"
+		eerror "expected: ${expected}"
+	fi
+	tend ${?}
+}
+
+test_fix_tool_path() {
+	local var=${1}
+	local tool=${2}
+	local expected_subst=${3}
+	local expected=${tool}
+
+	tbegin "llvm_fix_tool_path ${1}=${2} (from llvm? ${expected_subst})"
+
+	local matches=( "${BROOT}"/usr/lib/llvm/*/bin/"${tool}" )
+	if [[ ${expected_subst} == 1 ]]; then
+		if [[ ! -x ${matches[0]} ]]; then
+			ewarn "- skipping, test requires ${tool}"
+			return
+		fi
+
+		expected=${matches[0]}
+		local -x PATH=${matches[0]%/*}
+	else
+		local -x PATH=
+	fi
+
+	declare -g ${var}=${tool}
+	llvm_fix_tool_path "${var}"
+	if [[ ${!var} != ${expected} ]]; then
+		eerror "llvm_fix_tool_path ${var}"
+		eerror "    gave: ${!var}"
+		eerror "expected: ${expected}"
+	fi
+	tend ${?}
+}
+
+test_globals '14 15 16 17 18' \
+	"+llvm_slot_17 llvm_slot_15 llvm_slot_16 llvm_slot_18" \
+	"^^ ( llvm_slot_15 llvm_slot_16 llvm_slot_17 llvm_slot_18 )" \
+	"llvm_slot_15(-)?,llvm_slot_16(-)?,llvm_slot_17(-)?,llvm_slot_18(-)?"
+test_globals '14 15 16' \
+	"+llvm_slot_16 llvm_slot_15" \
+	"^^ ( llvm_slot_15 llvm_slot_16 )" \
+	"llvm_slot_15(-)?,llvm_slot_16(-)?"
+test_globals '15 18' \
+	"+llvm_slot_15 llvm_slot_18" \
+	"^^ ( llvm_slot_15 llvm_slot_18 )" \
+	"llvm_slot_15(-)?,llvm_slot_18(-)?"
+test_globals '18' \
+	"+llvm_slot_18" \
+	"^^ ( llvm_slot_18 )" \
+	"llvm_slot_18(-)?"
+
+LLVM_COMPAT=( {14..18} )
+inherit llvm-r1
+
+test_gen_dep 'sys-devel/llvm:${LLVM_SLOT} sys-devel/clang:${LLVM_SLOT}' <<-EOF
+	llvm_slot_15? ( sys-devel/llvm:15 sys-devel/clang:15 )
+	llvm_slot_16? ( sys-devel/llvm:16 sys-devel/clang:16 )
+	llvm_slot_17? ( sys-devel/llvm:17 sys-devel/clang:17 )
+	llvm_slot_18? ( sys-devel/llvm:18 sys-devel/clang:18 )
+EOF
+
+texit
diff --git a/eclass/tests/llvm-utils.sh b/eclass/tests/llvm-utils.sh
new file mode 100755
index 000000000000..6fe3da3eda13
--- /dev/null
+++ b/eclass/tests/llvm-utils.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+source tests-common.sh || exit
+
+EAPI=8
+
+inherit llvm-utils
+
+test_fix_clang_version() {
+	local var=${1}
+	local tool=${2}
+	local version=${3}
+	local expected=${4}
+
+	eval "${tool}() {
+		cat <<-EOF
+			clang version ${version}
+			Target: x86_64-pc-linux-gnu
+			Thread model: posix
+			InstalledDir: /usr/lib/llvm/17/bin
+			Configuration file: /etc/clang/x86_64-pc-linux-gnu-clang.cfg
+		EOF
+	}"
+
+	declare -g ${var}=${tool}
+	tbegin "llvm_fix_clang_version ${var}=${tool} for ${version}"
+	llvm_fix_clang_version "${var}"
+	if [[ ${!var} != ${expected} ]]; then
+		eerror "llvm_fix_clang_version ${var}"
+		eerror "    gave: ${!var}"
+		eerror "expected: ${expected}"
+	fi
+	tend ${?}
+}
+
+test_fix_tool_path() {
+	local var=${1}
+	local tool=${2}
+	local expected_subst=${3}
+	local expected=${tool}
+
+	tbegin "llvm_fix_tool_path ${1}=${2} (from llvm? ${expected_subst})"
+
+	local matches=( "${BROOT}"/usr/lib/llvm/*/bin/"${tool}" )
+	if [[ ${expected_subst} == 1 ]]; then
+		if [[ ! -x ${matches[0]} ]]; then
+			ewarn "- skipping, test requires ${tool}"
+			return
+		fi
+
+		expected=${matches[0]}
+		local -x PATH=${matches[0]%/*}
+	else
+		local -x PATH=
+	fi
+
+	declare -g ${var}=${tool}
+	llvm_fix_tool_path "${var}"
+	if [[ ${!var} != ${expected} ]]; then
+		eerror "llvm_fix_tool_path ${var}"
+		eerror "    gave: ${!var}"
+		eerror "expected: ${expected}"
+	fi
+	tend ${?}
+}
+
+test_prepend_path() {
+	local slot=${1}
+	local -x PATH=${2}
+	local expected=${3}
+
+	tbegin "llvm_prepend_path ${slot} to PATH=${PATH}"
+	llvm_prepend_path "${slot}"
+	if [[ ${PATH} != ${expected} ]]; then
+		eerror "llvm_prepend_path ${var}"
+		eerror "    gave: ${PATH}"
+		eerror "expected: ${expected}"
+	fi
+	tend ${?}
+}
+
+test_fix_clang_version CC clang 19.0.0git78b4e7c5 clang-19
+test_fix_clang_version CC clang 17.0.6 clang-17
+test_fix_clang_version CXX clang++ 17.0.6 clang++-17
+test_fix_clang_version CC x86_64-pc-linux-gnu-clang 17.0.6 \
+	x86_64-pc-linux-gnu-clang-17
+test_fix_clang_version CC clang-17 n/a clang-17
+test_fix_clang_version CC gcc n/a gcc
+
+test_fix_tool_path AR llvm-ar 1
+test_fix_tool_path RANLIB llvm-ranlib 1
+test_fix_tool_path AR ar 1
+test_fix_tool_path AR ar 0
+
+ESYSROOT=
+test_prepend_path 17 /usr/bin /usr/bin:/usr/lib/llvm/17/bin
+test_prepend_path 17 /usr/lib/llvm/17/bin:/usr/bin /usr/lib/llvm/17/bin:/usr/bin
+test_prepend_path 17 /usr/bin:/usr/lib/llvm/17/bin /usr/bin:/usr/lib/llvm/17/bin
+test_prepend_path 17 /usr/lib/llvm/17/bin:/usr/bin:/usr/lib/llvm/17/bin \
+	/usr/lib/llvm/17/bin:/usr/bin
+test_prepend_path 17 /usr/lib/llvm/17/bin:/usr/lib/llvm/17/bin:/usr/bin \
+	/usr/lib/llvm/17/bin:/usr/bin
+test_prepend_path 17 /usr/bin:/usr/lib/llvm/17/bin:/usr/lib/llvm/17/bin \
+	/usr/bin:/usr/lib/llvm/17/bin
+test_prepend_path 18 /usr/lib/llvm/17/bin:/usr/bin \
+	/usr/lib/llvm/18/bin:/usr/lib/llvm/17/bin:/usr/bin
+test_prepend_path 18 /usr/bin:/usr/lib/llvm/17/bin \
+	/usr/bin:/usr/lib/llvm/18/bin:/usr/lib/llvm/17/bin
+test_prepend_path 18 /usr/lib/llvm/17/bin:/usr/lib/llvm/16/bin:/usr/bin \
+	/usr/lib/llvm/18/bin:/usr/lib/llvm/17/bin:/usr/lib/llvm/16/bin:/usr/bin
+test_prepend_path 18 /usr/bin:/usr/lib/llvm/17/bin:/usr/lib/llvm/16/bin \
+	/usr/bin:/usr/lib/llvm/18/bin:/usr/lib/llvm/17/bin:/usr/lib/llvm/16/bin
+test_prepend_path 18 /usr/lib/llvm/17/bin:/usr/bin:/usr/lib/llvm/16/bin \
+	/usr/lib/llvm/18/bin:/usr/lib/llvm/17/bin:/usr/bin:/usr/lib/llvm/16/bin
+
+texit