[gentoo-dev] cmake-multilib.eclass: Drop EAPI-6 support and prepare to drop cmake-utils w/ future EAPI

[Andreas Sturmlechner]

diff --git a/eclass/cmake-multilib.eclass b/eclass/cmake-multilib.eclass
--- a/eclass/cmake-multilib.eclass
+++ b/eclass/cmake-multilib.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: cmake-multilib.eclass
@@ -6,27 +6,41 @@
 # gx86-multilib team <multi...@gentoo.org>
 # @AUTHOR:
 # Author: Michał Górny <mgo...@gentoo.org>
-# @SUPPORTED_EAPIS: 6 7
-# @BLURB: cmake-utils wrapper for multilib builds
+# @SUPPORTED_EAPIS: 7
+# @BLURB: cmake wrapper for multilib builds
 # @DESCRIPTION:
-# The cmake-multilib.eclass provides a glue between cmake-utils.eclass(5)
+# The cmake-multilib.eclass provides a glue between cmake.eclass(5)
 # and multilib-minimal.eclass(5), aiming to provide a convenient way
 # to build packages using cmake for multiple ABIs.
 #
 # Inheriting this eclass sets IUSE and exports default multilib_src_*()
-# sub-phases that call cmake-utils phase functions for each ABI enabled.
+# sub-phases that call cmake phase functions for each ABI enabled.
 # The multilib_src_*() functions can be defined in ebuild just like
-# in multilib-minimal, yet they ought to call appropriate cmake-utils
+# in multilib-minimal, yet they ought to call appropriate cmake
 # phase rather than 'default'.
 
 # @ECLASS-VARIABLE: CMAKE_ECLASS
 # @DESCRIPTION:
-# Default is "cmake-utils" for compatibility. Specify "cmake" for ebuilds
-# that ported from cmake-utils.eclass to cmake.eclass already.
+# Default is "cmake-utils" for compatibility in EAPI-7. Specify "cmake" for
+# ebuilds that ported to cmake.eclass already. Future EAPI is "cmake" only.
 : ${CMAKE_ECLASS:=cmake-utils}
 
+# @ECLASS-VARIABLE: _CMAKE_ECLASS_IMPL
+# @INTERNAL
+# @DESCRIPTION:
+# Default is "cmake" for future EAPI. Cleanup once EAPI-7 support is gone.
+_CMAKE_ECLASS_IMPL=cmake
+
 case ${EAPI:-0} in
-       [67]) ;;
+       7) case ${CMAKE_ECLASS} in
+                       cmake-utils|cmake) ;;
+                       *)
+                               eerror "Unknown value for \$
{CMAKE_ECLASS}"
+                               die "Value ${CMAKE_ECLASS} is not 
supported"
+                               ;;
+               esac
+               _CMAKE_ECLASS_IMPL=${CMAKE_ECLASS}
+               ;;
        *) die "EAPI=${EAPI} is not supported" ;;
 esac
 
@@ -34,15 +48,7 @@ if [[ ${CMAKE_IN_SOURCE_BUILD} ]]; then
        die "${ECLASS}: multilib support requires out-of-source builds."
 fi
 
-case ${CMAKE_ECLASS} in
-       cmake-utils|cmake) ;;
-       *)
-               eerror "Unknown value for \${CMAKE_ECLASS}"
-               die "Value ${CMAKE_ECLASS} is not supported"
-               ;;
-esac
-
-inherit ${CMAKE_ECLASS} multilib-minimal
+inherit ${_CMAKE_ECLASS_IMPL} multilib-minimal
 
 EXPORT_FUNCTIONS src_configure src_compile src_test src_install
 
@@ -53,7 +59,7 @@ cmake-multilib_src_configure() {
 }
 
 multilib_src_configure() {
-       ${CMAKE_ECLASS}_src_configure "${_cmake_args[@]}"
+       ${_CMAKE_ECLASS_IMPL}_src_configure "${_cmake_args[@]}"
 }
 
 cmake-multilib_src_compile() {
@@ -63,7 +69,7 @@ cmake-multilib_src_compile() {
 }
 
 multilib_src_compile() {
-       ${CMAKE_ECLASS}_src_compile "${_cmake_args[@]}"
+       ${_CMAKE_ECLASS_IMPL}_src_compile "${_cmake_args[@]}"
 }
 
 cmake-multilib_src_test() {
@@ -73,7 +79,7 @@ cmake-multilib_src_test() {
 }
 
 multilib_src_test() {
-       ${CMAKE_ECLASS}_src_test "${_cmake_args[@]}"
+       ${_CMAKE_ECLASS_IMPL}_src_test "${_cmake_args[@]}"
 }
 
 cmake-multilib_src_install() {
@@ -83,5 +89,5 @@ cmake-multilib_src_install() {
 }
 
 multilib_src_install() {
-       ${CMAKE_ECLASS}_src_install "${_cmake_args[@]}"
+       ${_CMAKE_ECLASS_IMPL}_src_install "${_cmake_args[@]}"
 }

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