11.11.2013 19:32, Sergey Popov пишет:
> Some work on splitting these helper functions was done earlier, and then
> we have got request(bug #479744), so, with ACK from pesa, i would like
> to propose this new eclass here and some times after - another proposal
> with making qt4-r2 eclass depends on this one to prevent code duplication.
> 
> So, here it is(directly from qt overlay):
> 
> 
> 
> # Copyright 1999-2013 Gentoo Foundation
> # Distributed under the terms of the GNU General Public License v2
> # $Header: $
> 
> # @ECLASS: qmake-utils.eclass
> # @MAINTAINER:
> # Qt herd <qt@gentoo.org>
> # @AUTHOR:
> # Davide Pesavento <pesa@gentoo.org>
> # @BLURB: Common functions for qmake-based packages.
> # @DESCRIPTION:
> # Utility eclass providing wrapper functions for Qt4 and Qt5 qmake.
> 
> if [[ ${___ECLASS_ONCE_QMAKE_UTILS} != "recur -_+^+_- spank" ]]; then
> ___ECLASS_ONCE_QMAKE_UTILS="recur -_+^+_- spank"
> 
> inherit eutils multilib toolchain-funcs
> 
> # @FUNCTION: qmake-utils_find_pro_file
> # @RETURN: zero or one qmake .pro file names
> # @INTERNAL
> # @DESCRIPTION:
> # Outputs a project file name that can be passed to eqmake.
> #   0 *.pro files found --> outputs null string;
> #   1 *.pro file found --> outputs its name;
> #   2 or more *.pro files found --> if "${PN}.pro" or
> #       "$(basename ${S}).pro" are there, outputs one of them.
> qmake-utils_find_pro_file() {
> 	local dir_name=$(basename "${S}")
> 
> 	# set nullglob to avoid expanding *.pro to the literal
> 	# string "*.pro" when there are no matching files
> 	eshopts_push -s nullglob
> 	local pro_files=(*.pro)
> 	eshopts_pop
> 
> 	case ${#pro_files[@]} in
> 	0)
> 		: ;;
> 	1)
> 		echo "${pro_files}"
> 		;;
> 	*)
> 		for pro_file in "${pro_files[@]}"; do
> 			if [[ ${pro_file%.pro} == ${dir_name} || ${pro_file%.pro} == ${PN}
> ]]; then
> 				echo "${pro_file}"
> 				break
> 			fi
> 		done
> 		;;
> 	esac
> }
> 
> # @VARIABLE: EQMAKE4_EXCLUDE
> # @DEFAULT_UNSET
> # @DESCRIPTION:
> # List of files to be excluded from eqmake4 CONFIG processing.
> # Paths are relative to the current working directory (usually ${S}).
> #
> # Example: EQMAKE4_EXCLUDE="ignore/me.pro foo/*"
> 
> # @FUNCTION: eqmake4
> # @USAGE: [project_file] [parameters to qmake]
> # @DESCRIPTION:
> # Wrapper for Qt4's qmake. If project_file isn't specified, eqmake4 will
> # look for it in the current directory (${S}, non-recursively). If more
> # than one project file are found, then ${PN}.pro is processed, provided
> # that it exists. Otherwise eqmake4 fails.
> #
> # All other arguments are appended unmodified to qmake command line.
> #
> # For recursive build systems, i.e. those based on the subdirs template,
> # you should run eqmake4 on the top-level project file only, unless you
> # have a valid reason to do otherwise. During the building, qmake will
> # be automatically re-invoked with the right arguments on every directory
> # specified inside the top-level project file.
> eqmake4() {
> 	debug-print-function ${FUNCNAME} "$@"
> 
> 	has "${EAPI:-0}" 0 1 2 && use !prefix && EPREFIX=
> 
> 	ebegin "Running qmake"
> 
> 	local qmake_args=("$@")
> 
> 	# check if project file was passed as a first argument
> 	# if not, then search for it
> 	local regexp='.*\.pro'
> 	if ! [[ ${1} =~ ${regexp} ]]; then
> 		local project_file=$(qmake-utils_find_pro_file)
> 		if [[ -z ${project_file} ]]; then
> 			echo
> 			eerror "No project files found in '${PWD}'!"
> 			eerror "This shouldn't happen - please send a bug report to
> https://bugs.gentoo.org/"
> 			echo
> 			die "eqmake4 failed"
> 		fi
> 		qmake_args+=("${project_file}")
> 	fi
> 
> 	# make sure CONFIG variable is correctly set
> 	# for both release and debug builds
> 	local config_add="release"
> 	local config_remove="debug"
> 	if has debug ${IUSE} && use debug; then
> 		config_add="debug"
> 		config_remove="release"
> 	fi
> 
> 	local awkscript='BEGIN {
> 				printf "### eqmake4 was here ###\n" > file;
> 				printf "CONFIG -= debug_and_release %s\n", remove >> file;
> 				printf "CONFIG += %s\n\n", add >> file;
> 				fixed=0;
> 			}
> 			/^[[:blank:]]*CONFIG[[:blank:]]*[\+\*]?=/ {
> 				if (gsub("\\<((" remove ")|(debug_and_release))\\>", "") > 0) {
> 					fixed=1;
> 				}
> 			}
> 			/^[[:blank:]]*CONFIG[[:blank:]]*-=/ {
> 				if (gsub("\\<" add "\\>", "") > 0) {
> 					fixed=1;
> 				}
> 			}
> 			{
> 				print >> file;
> 			}
> 			END {
> 				print fixed;
> 			}'
> 
> 	[[ -n ${EQMAKE4_EXCLUDE} ]] && eshopts_push -o noglob
> 
> 	local file
> 	while read file; do
> 		local excl
> 		for excl in ${EQMAKE4_EXCLUDE}; do
> 			[[ ${file} == ${excl} ]] && continue 2
> 		done
> 		grep -q '^### eqmake4 was here ###$' "${file}" && continue
> 
> 		local retval=$({
> 			rm -f "${file}" || echo FAIL
> 			awk -v file="${file}" \
> 				-v add=${config_add} \
> 				-v remove=${config_remove} \
> 				-- "${awkscript}" || echo FAIL
> 			} < "${file}")
> 
> 		if [[ ${retval} == 1 ]]; then
> 			einfo " - fixed CONFIG in ${file}"
> 		elif [[ ${retval} != 0 ]]; then
> 			eerror " - error while processing ${file}"
> 			die "eqmake4 failed to process ${file}"
> 		fi
> 	done < <(find . -type f -name '*.pr[io]' -printf '%P\n' 2>/dev/null)
> 
> 	[[ -n ${EQMAKE4_EXCLUDE} ]] && eshopts_pop
> 
> 	"${EPREFIX}"/usr/bin/qmake \
> 		-makefile \
> 		QTDIR="${EPREFIX}"/usr/$(get_libdir) \
> 		QMAKE="${EPREFIX}"/usr/bin/qmake \
> 		QMAKE_AR="$(tc-getAR) cqs" \
> 		QMAKE_CC="$(tc-getCC)" \
> 		QMAKE_CXX="$(tc-getCXX)" \
> 		QMAKE_LINK="$(tc-getCXX)" \
> 		QMAKE_LINK_C="$(tc-getCC)" \
> 		QMAKE_OBJCOPY="$(tc-getOBJCOPY)" \
> 		QMAKE_RANLIB= \
> 		QMAKE_STRIP= \
> 		QMAKE_CFLAGS="${CFLAGS}" \
> 		QMAKE_CFLAGS_RELEASE= \
> 		QMAKE_CFLAGS_DEBUG= \
> 		QMAKE_CXXFLAGS="${CXXFLAGS}" \
> 		QMAKE_CXXFLAGS_RELEASE= \
> 		QMAKE_CXXFLAGS_DEBUG= \
> 		QMAKE_LFLAGS="${LDFLAGS}" \
> 		QMAKE_LFLAGS_RELEASE= \
> 		QMAKE_LFLAGS_DEBUG= \
> 		QMAKE_LIBDIR_QT="${EPREFIX}"/usr/$(get_libdir)/qt4 \
> 		QMAKE_LIBDIR_X11="${EPREFIX}"/usr/$(get_libdir) \
> 		QMAKE_LIBDIR_OPENGL="${EPREFIX}"/usr/$(get_libdir) \
> 		"${qmake_args[@]}"
> 
> 	# was qmake successful?
> 	if ! eend $? ; then
> 		echo
> 		eerror "Running qmake has failed! (see above for details)"
> 		eerror "This shouldn't happen - please send a bug report to
> https://bugs.gentoo.org/"
> 		echo
> 		die "eqmake4 failed"
> 	fi
> }
> 
> # @FUNCTION: eqmake5
> # @USAGE: [arguments for qmake]
> # @DESCRIPTION:
> # Wrapper for Qt5's qmake. All arguments are passed to qmake.
> #
> # For recursive build systems, i.e. those based on the subdirs template,
> # you should run eqmake5 on the top-level project file only, unless you
> # have a valid reason to do otherwise. During the building, qmake will
> # be automatically re-invoked with the right arguments on every directory
> # specified inside the top-level project file.
> eqmake5() {
> 	debug-print-function ${FUNCNAME} "$@"
> 
> 	has "${EAPI:-0}" 0 1 2 && use !prefix && EPREFIX=
> 
> 	ebegin "Running qmake"
> 
> 	"${EPREFIX}"/usr/$(get_libdir)/qt5/bin/qmake \
> 		-makefile \
> 		QMAKE_AR="$(tc-getAR) cqs" \
> 		QMAKE_CC="$(tc-getCC)" \
> 		QMAKE_CXX="$(tc-getCXX)" \
> 		QMAKE_LINK="$(tc-getCXX)" \
> 		QMAKE_LINK_C="$(tc-getCC)" \
> 		QMAKE_OBJCOPY="$(tc-getOBJCOPY)" \
> 		QMAKE_RANLIB= \
> 		QMAKE_STRIP= \
> 		QMAKE_CFLAGS="${CFLAGS}" \
> 		QMAKE_CFLAGS_RELEASE= \
> 		QMAKE_CFLAGS_DEBUG= \
> 		QMAKE_CXXFLAGS="${CXXFLAGS}" \
> 		QMAKE_CXXFLAGS_RELEASE= \
> 		QMAKE_CXXFLAGS_DEBUG= \
> 		QMAKE_LFLAGS="${LDFLAGS}" \
> 		QMAKE_LFLAGS_RELEASE= \
> 		QMAKE_LFLAGS_DEBUG= \
> 		"$@"
> 
> 	# was qmake successful?
> 	if ! eend $? ; then
> 		echo
> 		eerror "Running qmake has failed! (see above for details)"
> 		eerror "This shouldn't happen - please send a bug report to
> https://bugs.gentoo.org/"
> 		echo
> 		die "eqmake5 failed"
> 	fi
> }
> 
> fi
> 
> 

Ok, no objections/comments for more than 3 weeks. I committed it. Later
i will post diff for qt4-r2 eclass.

-- 
Best regards, Sergey Popov
Gentoo developer
Gentoo Desktop Effects project lead
Gentoo Qt project lead
Gentoo Proxy maintainers project lead