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+# Copyright 2009 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/qt4-r2.eclass,v 1.1 2009/12/15 16:32:43 ayoy Exp $
+
+# @ECLASS: qt4-r2.eclass
+# @MAINTAINER:
+# Ben de Groot <yngwin@gentoo.org>,
+# Markos Chandras <hwoarang@gentoo.org>,
+# Davide Pesavento <davidepesa@gmail.com>,
+# Dominik Kapusta <ayoy@gentoo.org>
+# @BLURB: Eclass for Qt4 packages, second edition
+# @DESCRIPTION:
+# This eclass contains various functions that may be useful when
+# dealing with packages using Qt4 libraries. Requires EAPI=2.
+
+case ${EAPI} in
+	2) : ;;
+	*) DEPEND="EAPI-INCOMPATIBLE" ;;
+esac
+
+inherit base eutils multilib toolchain-funcs
+
+export XDG_CONFIG_HOME="${T}"
+
+# @ECLASS-VARIABLE: LANGS
+# @DESCRIPTION:
+# In case your Qt4 application provides various translations, use this variable
+# to specify them in order to populate "linguas_*" IUSE automatically. Make sure
+# that you set this variable BEFORE inheriting qt4-r2 eclass.
+# example: LANGS="en el de"
+for x in ${LANGS}; do
+	IUSE="${IUSE} linguas_${x}"
+done
+
+# @ECLASS-VARIABLE: LANGSLONG
+# @DESCRIPTION:
+# Same as above, but this variable is for LINGUAS that must be in long format.
+# Remember to set this variable BEFORE inheriting qt4-r2 eclass.
+# Look at ${PORTDIR}/profiles/desc/linguas.desc for details.
+for x in ${LANGSLONG}; do
+	IUSE="${IUSE} linguas_${x%_*}"
+done
+
+# @FUNCTION: qt4-r2_src_unpack
+# @DESCRIPTION:
+# Default src_unpack function for packages that depend on qt4. If you have to
+# override src_unpack in your ebuild (probably you don't need to), call
+# qt4-r2_src_unpack in it.
+qt4-r2_src_unpack() {
+	debug-print-function $FUNCNAME "$@"
+	base_src_unpack "$@"
+
+	# Fallback to ${WORKDIR}/${MY_P} when ${WORKDIR}/${P} doesn't exist.
+	# Feel free to re-implement this
+	if [[ "${S}" == "${WORKDIR}/${P}" && ! -d ${S} && -d ${WORKDIR}/${MY_P} ]]; then
+		ewarn "Falling back to '${WORKDIR}/${MY_P}'"
+		S="${WORKDIR}/${MY_P}"
+	fi
+}
+
+# @ECLASS-VARIABLE: PATCHES
+# @DESCRIPTION:
+# In case you have patches to apply, specify them in PATCHES variable. Make sure
+# to specify the full path. This variable is used in src_prepare phase.
+# example:
+# PATCHES=( "${FILESDIR}"/mypatch.patch
+# 	"${FILESDIR}"/mypatch2.patch )
+#
+# @FUNCTION: qt4-r2_src_prepare
+# @DESCRIPTION:
+# Default src_prepare function for packages that depend on qt4. If you have to
+# override src_prepare in your ebuild, you should call qt4-r2_src_prepare in it,
+# otherwise autopatcher will not work!
+qt4-r2_src_prepare() {
+	debug-print-function $FUNCNAME "$@"
+
+	base_src_prepare "$@"
+}
+
+# @FUNCTION: qt4-r2_src_configure
+# @DESCRIPTION:
+# Default src_configure function for packages that depend on qt4. If you have to
+# override src_configure in your ebuild, call qt4-r2_src_configure in it.
+qt4-r2_src_configure() {
+	debug-print-function $FUNCNAME "$@"
+
+	local project_file="$(_find_project_file)"
+
+	if [[ -n ${project_file} ]]; then
+		eqmake4 ${project_file}
+	else
+		base_src_configure "$@"
+	fi
+}
+
+# @FUNCTION: qt4-r2_src_compile
+# @DESCRIPTION:
+# Default src_compile function for packages that depend on qt4. If you have to
+# override src_compile in your ebuild (probably you don't need to), call
+# qt4-r2_src_compile in it.
+qt4-r2_src_compile() {
+	debug-print-function $FUNCNAME "$@"
+
+	base_src_compile "$@"
+}
+
+# @ECLASS-VARIABLE: DOCS
+# @DESCRIPTION:
+# Use this variable if you want to install any documentation.
+# example: DOCS="README AUTHORS"
+#
+# @ECLASS-VARIABLE: DOCSDIR
+# @DESCRIPTION:
+# Directory containing documentation. If not specified, ${S} will be used
+# instead.
+#
+# @FUNCTION: qt4-r2_src_install
+# @DESCRIPTION:
+# Default src_install function for qt4-based packages. Installs compiled code,
+# documentation (via DOCS variable) and translations (via LANGS and
+# LANGSLONG variables).
+qt4-r2_src_install() {
+	debug-print-function $FUNCNAME "$@"
+
+	emake INSTALL_ROOT="${D}" DESTDIR="${D}" install || die "emake install failed"
+
+	# install documentation
+	if [[ -n "${DOCS}" ]]; then
+		local dir=${DOCSDIR:-${S}}
+		for doc in ${DOCS}; do
+			dodoc "${dir}/${doc}" || die "dodoc failed"
+		done
+	fi
+}
+
+# Internal function, used by eqmake4 and qt4-r2_src_configure
+# Look for project files:
+#   0 *.pro files found - output null string
+#   1 *.pro file found - output its name
+#   2 or more *.pro files found - if ${PN}.pro or $(basename ${S}).pro
+#     are there, output any of them
+# Outputs a project file argument used by eqmake4. Sets nullglob locally
+# to avoid expanding *.pro as "*.pro" when there are no matching files.
+_find_project_file() {
+	shopt -s nullglob
+	local pro_files=(*.pro)
+	shopt -u nullglob
+	local dir_name="$(basename ${S})"
+
+	case ${#pro_files[@]} in
+	1)
+		echo "${pro_files[0]}"
+		;;
+	*)
+		for pro_file in "${pro_files[@]}"; do
+			if [[ "${pro_file}" == "${dir_name}" ||
+				  "${pro_file}" == "${PN}.pro" ]]; then
+				echo "${pro_file}"
+				break
+			fi
+		done
+		;;
+	esac
+}
+
+# @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 current directory (${S}, non-recursively). If more than
+# one project file is found, the ${PN}.pro is processed, provided that it
+# exists. Otherwise eqmake4 fails.
+# All the arguments are appended unmodified to qmake command line. For
+# recursive build systems, i.e. those based on the subdirs template, you
+# should run eqmake4 on the top-level project file only, unless you have
+# strong reasons to do things differently. During the building, qmake
+# will be automatically re-invoked with the right arguments on every
+# directory specified inside the top-level project file by the SUBDIRS
+# variable.
+eqmake4() {
+	ebegin "Running qmake"
+
+	local qmake_args="$@"
+
+	# check if project file was passed as a first argument
+	# if not, then search for it
+	local regexp='.*\.pro'
+	if ! [[ "${1}" =~ ${regexp} ]]; then
+		local project_file="$(_find_project_file)"
+		if [[ -z "${project_file}" ]]; then
+			echo
+			eerror "No project file found in ${S}!"
+			eerror "This shouldn't happen - please send a bug report to http://bugs.gentoo.org/"
+			echo
+			die "eqmake4 failed"
+		fi
+		qmake_args="${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 ${IUSE} && use debug; then
+		CONFIG_ADD="debug"
+		CONFIG_REMOVE="release"
+	fi
+	local awkscript='BEGIN {
+				printf "### eqmake4 was here ###\n" > file;
+				fixed=0;
+			}
+			/^[[:blank:]]*CONFIG[[:blank:]]*[\+\*]?=/ {
+				for (i=1; i <= NF; i++) {
+					if ($i ~ rem || $i ~ /debug_and_release/)
+						{ $i=add; fixed=1; }
+				}
+			}
+			/^[[:blank:]]*CONFIG[[:blank:]]*-=/ {
+				for (i=1; i <= NF; i++) {
+					if ($i ~ add) { $i=rem; fixed=1; }
+				}
+			}
+			{
+				print >> file;
+			}
+			END {
+				printf "\nCONFIG -= debug_and_release %s\n", rem >> file;
+				printf "CONFIG += %s\n", add >> file;
+				print fixed;
+			}'
+	local file=
+	while read file; do
+		grep -q '^### eqmake4 was here ###$' "${file}" && continue
+		local retval=$({
+				rm -f "${file}" || echo "FAILED"
+				awk -v file="${file}" -- "${awkscript}" add=${CONFIG_ADD} rem=${CONFIG_REMOVE} || echo "FAILED"
+				} < "${file}")
+		if [[ ${retval} == 1 ]]; then
+			einfo " - fixed CONFIG in ${file}"
+		elif [[ ${retval} != 0 ]]; then
+			eerror "An error occurred while processing ${file}"
+			die "eqmake4 failed to process '${file}'"
+		fi
+	done < <(find . -type f -name "*.pr[io]" -printf '%P\n' 2>/dev/null)
+
+	/usr/bin/qmake -makefile -nocache \
+		QTDIR=/usr/$(get_libdir) \
+		QMAKE=/usr/bin/qmake \
+		QMAKE_CC=$(tc-getCC) \
+		QMAKE_CXX=$(tc-getCXX) \
+		QMAKE_LINK=$(tc-getCXX) \
+		QMAKE_CFLAGS_RELEASE="${CFLAGS}" \
+		QMAKE_CFLAGS_DEBUG="${CFLAGS}" \
+		QMAKE_CXXFLAGS_RELEASE="${CXXFLAGS}" \
+		QMAKE_CXXFLAGS_DEBUG="${CXXFLAGS}" \
+		QMAKE_LFLAGS_RELEASE="${LDFLAGS}" \
+		QMAKE_LFLAGS_DEBUG="${LDFLAGS}" \
+		QMAKE_RPATH= \
+		QMAKE_STRIP= \
+		${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 http://bugs.gentoo.org/"
+		echo
+		die "eqmake4 failed"
+	fi
+
+	return 0
+}
+
+EXPORT_FUNCTIONS src_unpack src_prepare src_configure src_compile src_install