pesa        14/11/13 01:45:07

  Modified:             ChangeLog
  Added:                qt4-build-multilib.eclass
  Log:
  Initial commit of qt4-build-multilib.eclass

Revision  Changes    Path
1.1416               eclass/ChangeLog

file : 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.1416&view=markup
plain: 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?rev=1.1416&content-type=text/plain
diff : 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/ChangeLog?r1=1.1415&r2=1.1416

Index: ChangeLog
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v
retrieving revision 1.1415
retrieving revision 1.1416
diff -u -r1.1415 -r1.1416
--- ChangeLog   12 Nov 2014 23:26:36 -0000      1.1415
+++ ChangeLog   13 Nov 2014 01:45:07 -0000      1.1416
@@ -1,6 +1,9 @@
 # ChangeLog for eclass directory
 # Copyright 1999-2014 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1415 2014/11/12 
23:26:36 monsieurp Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1416 2014/11/13 
01:45:07 pesa Exp $
+
+  13 Nov 2014; Davide Pesavento <p...@gentoo.org> +qt4-build-multilib.eclass:
+  Initial commit of qt4-build-multilib.eclass
 
   12 Nov 2014; Patrice Clement <monsie...@gentoo.org> perl-module.eclass:
   Documented nearly all functions.



1.1                  eclass/qt4-build-multilib.eclass

file : 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/qt4-build-multilib.eclass?rev=1.1&view=markup
plain: 
http://sources.gentoo.org/viewvc.cgi/gentoo-x86/eclass/qt4-build-multilib.eclass?rev=1.1&content-type=text/plain

Index: qt4-build-multilib.eclass
===================================================================
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/qt4-build-multilib.eclass,v 1.1 
2014/11/13 01:45:07 pesa Exp $

# @ECLASS: qt4-build-multilib.eclass
# @MAINTAINER:
# Qt herd <q...@gentoo.org>
# @AUTHOR:
# Davide Pesavento <p...@gentoo.org>
# @BLURB: Eclass for Qt4 split ebuilds with multilib support.
# @DESCRIPTION:
# This eclass contains various functions that are used when building Qt4.
# Requires EAPI 5.

case ${EAPI} in
        5)      : ;;
        *)      die "qt4-build-multilib.eclass: unsupported EAPI=${EAPI:-0}" ;;
esac

inherit eutils flag-o-matic multilib multilib-minimal toolchain-funcs

HOMEPAGE="https://www.qt.io/ https://qt-project.org/";
LICENSE="|| ( LGPL-2.1 GPL-3 )"
SLOT="4"

case ${PV} in
        4.?.9999)
                QT4_BUILD_TYPE="live"
                EGIT_REPO_URI=(
                        "git://gitorious.org/qt/qt.git"
                        "https://git.gitorious.org/qt/qt.git";
                )
                EGIT_BRANCH=${PV%.9999}
                inherit git-r3
                ;;
        *)
                QT4_BUILD_TYPE="release"
                MY_P=qt-everywhere-opensource-src-${PV/_/-}
                
SRC_URI="http://download.qt-project.org/archive/qt/${PV%.*}/${PV}/${MY_P}.tar.gz";
                S=${WORKDIR}/${MY_P}
                ;;
esac

if [[ ${PN} != qttranslations ]]; then
        IUSE="aqua debug pch"
        [[ ${PN} != qtxmlpatterns ]] && IUSE+=" +exceptions"
fi

DEPEND="
        dev-lang/perl
        virtual/pkgconfig[${MULTILIB_USEDEP}]
"
RDEPEND="
        dev-qt/qtchooser
"


# src_{configure,compile,test,install} are inherited from multilib-minimal
EXPORT_FUNCTIONS src_unpack src_prepare pkg_postinst pkg_postrm

multilib_src_configure()        { qt4_multilib_src_configure; }
multilib_src_compile()          { qt4_multilib_src_compile; }
multilib_src_test()             { qt4_multilib_src_test; }
multilib_src_install()          { qt4_multilib_src_install; }
multilib_src_install_all()      { qt4_multilib_src_install_all; }


# @ECLASS-VARIABLE: PATCHES
# @DEFAULT_UNSET
# @DESCRIPTION:
# Array variable containing all the patches to be applied. This variable
# is expected to be defined in the global scope of ebuilds. Make sure to
# specify the full path. This variable is used in src_prepare phase.
#
# Example:
# @CODE
#       PATCHES=(
#               "${FILESDIR}/mypatch.patch"
#               "${FILESDIR}/mypatch2.patch"
#       )
# @CODE

# @ECLASS-VARIABLE: QT4_TARGET_DIRECTORIES
# @DEFAULT_UNSET
# @DESCRIPTION:
# Space-separated list of directories that will be configured,
# compiled, and installed. All paths must be relative to ${S}.

# @ECLASS-VARIABLE: QT4_VERBOSE_BUILD
# @DESCRIPTION:
# Set to false to reduce build output during compilation.
: ${QT4_VERBOSE_BUILD:=true}

# @ECLASS-VARIABLE: QCONFIG_ADD
# @DEFAULT_UNSET
# @DESCRIPTION:
# List of options that must be added to QT_CONFIG in qconfig.pri

# @ECLASS-VARIABLE: QCONFIG_REMOVE
# @DEFAULT_UNSET
# @DESCRIPTION:
# List of options that must be removed from QT_CONFIG in qconfig.pri

# @ECLASS-VARIABLE: QCONFIG_DEFINE
# @DEFAULT_UNSET
# @DESCRIPTION:
# List of macros that must be defined in QtCore/qconfig.h

# @FUNCTION: qt4-build-multilib_src_unpack
# @DESCRIPTION:
# Unpacks the sources.
qt4-build-multilib_src_unpack() {
        if [[ $(gcc-major-version) -lt 4 ]] || [[ $(gcc-major-version) -eq 4 && 
$(gcc-minor-version) -lt 4 ]]; then
                ewarn
                ewarn "Using a GCC version lower than 4.4 is not supported."
                ewarn
        fi

        if [[ ${PN} == qtwebkit ]]; then
                eshopts_push -s extglob
                if is-flagq '-g?(gdb)?([1-9])'; then
                        ewarn
                        ewarn "You have enabled debug info (probably have -g or 
-ggdb in your CFLAGS/CXXFLAGS)."
                        ewarn "You may experience really long compilation times 
and/or increased memory usage."
                        ewarn "If compilation fails, please try removing 
-g/-ggdb before reporting a bug."
                        ewarn "For more info check out 
https://bugs.gentoo.org/307861";
                        ewarn
                fi
                eshopts_pop
        fi

        case ${QT4_BUILD_TYPE} in
                live)    git-r3_src_unpack ;;
                release) default ;;
        esac
}

# @FUNCTION: qt4-build-multilib_src_prepare
# @DESCRIPTION:
# Prepare the sources before the configure phase. Strip CFLAGS if necessary, 
and fix
# the build system in order to respect CFLAGS/CXXFLAGS/LDFLAGS specified in 
make.conf.
qt4-build-multilib_src_prepare() {
        if [[ ${PN} != qtcore ]]; then
                # avoid unnecessary qmake recompilations
                sed -i -e 's/^if true;/if false;/' configure \
                        || die "sed failed (skip qmake bootstrap)"
        fi

        # skip X11 tests in non-gui packages to avoid spurious dependencies
        if has ${PN} qtbearer qtcore qtdbus qtscript qtsql qttest 
qttranslations qtxmlpatterns; then
                sed -i -e '/^if.*PLATFORM_X11.*CFG_GUI/,/^fi$/d' configure \
                        || die "sed failed (skip X11 tests)"
        fi

        if use_if_iuse aqua; then
                sed -i \
                        -e '/^CONFIG/s:app_bundle::' \
                        -e '/^CONFIG/s:plugin_no_soname:plugin_with_soname 
absolute_library_soname:' \
                        mkspecs/$(qt4_get_mkspec)/qmake.conf \
                        || die "sed failed (aqua)"

                # we are crazy and build cocoa + qt3support
                if { ! in_iuse qt3support || use qt3support; } && [[ 
${CHOST##*-darwin} -ge 9 ]]; then
                        sed -i -e "/case \"\$PLATFORM,\$CFG_MAC_COCOA\" 
in/,/;;/ s|CFG_QT3SUPPORT=\"no\"|CFG_QT3SUPPORT=\"yes\"|" \
                                configure || die "sed failed (cocoa + 
qt3support)"
                fi
        fi

        # Bug 261632
        if use ppc64; then
                append-flags -mminimal-toc
        fi

        # Bug 373061
        # qmake bus errors with -O2 or -O3 but -O1 works
        if [[ ${CHOST} == *86*-apple-darwin* ]]; then
                replace-flags -O[23] -O1
        fi

        # Bug 417105
        # graphite on gcc 4.7 causes miscompilations
        if [[ $(gcc-version) == "4.7" ]]; then
                filter-flags -fgraphite-identity
        fi

        # Read also AR from the environment
        sed -i -e 's/^SYSTEM_VARIABLES="/&AR /' \
                configure || die "sed SYSTEM_VARIABLES failed"

        # Reset QMAKE_*FLAGS_{RELEASE,DEBUG} variables,
        # or they will override user's flags (.qmake.cache)
        sed -i -e '/^SYSTEM_VARIABLES=/ i \
                QMakeVar set QMAKE_CFLAGS_RELEASE\
                QMakeVar set QMAKE_CFLAGS_DEBUG\
                QMakeVar set QMAKE_CXXFLAGS_RELEASE\
                QMakeVar set QMAKE_CXXFLAGS_DEBUG\
                QMakeVar set QMAKE_LFLAGS_RELEASE\
                QMakeVar set QMAKE_LFLAGS_DEBUG\n' \
                configure || die "sed QMAKE_*FLAGS_{RELEASE,DEBUG} failed"

        # Respect CC, CXX, LINK and *FLAGS in config.tests
        find config.tests/unix -name '*.test' -type f -print0 | xargs -0 \
                sed -i -e "/bin\/qmake/ s: \"\$SRCDIR/: \
                        'QMAKE_CC=$(tc-getCC)'    'QMAKE_CXX=$(tc-getCXX)'      
'QMAKE_LINK=$(tc-getCXX)' \
                        'QMAKE_CFLAGS+=${CFLAGS}' 'QMAKE_CXXFLAGS+=${CXXFLAGS}' 
'QMAKE_LFLAGS+=${LDFLAGS}'&:" \
                || die "sed config.tests failed"

        # Bug 172219
        sed -e 's:/X11R6/:/:' -i mkspecs/$(qt4_get_mkspec)/qmake.conf || die

        if [[ ${CHOST} == *-darwin* ]]; then
                # Set FLAGS and remove -arch, since our gcc-apple is multilib 
crippled (by design)
                sed -i \
                        -e 
"s:QMAKE_CFLAGS_RELEASE.*=.*:QMAKE_CFLAGS_RELEASE=${CFLAGS}:" \
                        -e 
"s:QMAKE_CXXFLAGS_RELEASE.*=.*:QMAKE_CXXFLAGS_RELEASE=${CXXFLAGS}:" \
                        -e 
"s:QMAKE_LFLAGS_RELEASE.*=.*:QMAKE_LFLAGS_RELEASE=-headerpad_max_install_names 
${LDFLAGS}:" \
                        -e "s:-arch\s\w*::g" \
                        mkspecs/common/g++-macx.conf \
                        || die "sed g++-macx.conf failed"

                # Fix configure's -arch settings that appear in qmake/Makefile 
and also
                # fix arch handling (automagically duplicates our -arch arg and 
breaks
                # pch). Additionally disable Xarch support.
                sed -i \
                        -e "s:-arch i386::" \
                        -e "s:-arch ppc::" \
                        -e "s:-arch x86_64::" \
                        -e "s:-arch ppc64::" \
                        -e "s:-arch \$i::" \
                        -e "/if \[ ! -z \"\$NATIVE_64_ARCH\" \]; then/,/fi/ d" \
                        -e "s:CFG_MAC_XARCH=yes:CFG_MAC_XARCH=no:g" \
                        -e "s:-Xarch_x86_64::g" \
                        -e "s:-Xarch_ppc64::g" \
                        configure mkspecs/common/gcc-base-macx.conf 
mkspecs/common/g++-macx.conf \
                        || die "sed -arch/-Xarch failed"

                # On Snow Leopard don't fall back to 10.5 deployment target.
                if [[ ${CHOST} == *-apple-darwin10 ]]; then
                        sed -i \
                                -e "s:QMakeVar set 
QMAKE_MACOSX_DEPLOYMENT_TARGET.*:QMakeVar set QMAKE_MACOSX_DEPLOYMENT_TARGET 
10.6:g" \
                                -e 
"s:-mmacosx-version-min=10.[0-9]:-mmacosx-version-min=10.6:g" \
                                configure mkspecs/common/g++-macx.conf \
                                || die "sed deployment target failed"
                fi
        fi

        # this is needed for all systems with a separate -liconv, except
        # Darwin, for which the sources already cater for -liconv
        if use !elibc_glibc && [[ ${CHOST} != *-darwin* ]]; then
                sed -e 's|mac:\(LIBS += -liconv\)|\1|g' \
                        -i config.tests/unix/iconv/iconv.pro \
                        || die "sed iconv.pro failed"
        fi

        # we need some patches for Solaris
        sed -i -e '/^QMAKE_LFLAGS_THREAD/a\QMAKE_LFLAGS_DYNAMIC_LIST = 
-Wl,--dynamic-list,' \
                mkspecs/$(qt4_get_mkspec)/qmake.conf || die
        # use GCC over SunStudio
        sed -i -e '/PLATFORM=solaris-cc/s/cc/g++/' configure || die
        # do not flirt with non-Prefix stuff, we're quite possessive
        sed -i -e '/^QMAKE_\(LIB\|INC\)DIR\(_X11\|_OPENGL\|\)\t/s/=.*$/=/' \
                mkspecs/$(qt4_get_mkspec)/qmake.conf || die

        # apply patches
        [[ ${PATCHES[@]} ]] && epatch "${PATCHES[@]}"
        epatch_user
}

qt4_multilib_src_configure() {
        qt4_prepare_env

        qt4_symlink_tools_to_build_dir

        # toolchain setup
        tc-export CC CXX OBJCOPY STRIP
        export AR="$(tc-getAR) cqs"
        export LD="$(tc-getCXX)"

        # convert tc-arch to the values supported by Qt
        local arch=
        case $(tc-arch) in
                amd64|x64-*)              arch=x86_64 ;;
                ppc*-macos)               arch=ppc ;;
                ppc*)                     arch=powerpc ;;
                sparc*)                   arch=sparc ;;
                x86-macos)                arch=x86 ;;
                x86*)                     arch=i386 ;;
                alpha|arm|ia64|mips|s390) arch=$(tc-arch) ;;
                hppa|sh)                  arch=generic ;;
                *) die "qt4-build-multilib.eclass: unsupported tc-arch 
'$(tc-arch)'" ;;
        esac

        # configure arguments
        local conf=(
                # installation paths
                -prefix "${QT4_PREFIX}"
                -bindir "${QT4_BINDIR}"
                -libdir "${QT4_LIBDIR}"
                -docdir "${QT4_DOCDIR}"
                -headerdir "${QT4_HEADERDIR}"
                -plugindir "${QT4_PLUGINDIR}"
                -importdir "${QT4_IMPORTDIR}"
                -datadir "${QT4_DATADIR}"
                -translationdir "${QT4_TRANSLATIONDIR}"
                -sysconfdir "${QT4_SYSCONFDIR}"
                -examplesdir "${QT4_EXAMPLESDIR}"
                -demosdir "${QT4_DEMOSDIR}"

                # debug/release
                $(use_if_iuse debug && echo -debug || echo -release)
                -no-separate-debug-info

                # licensing stuff
                -opensource -confirm-license

                # build shared libraries
                -shared

                # skip recursive processing of .pro files at the end of 
configure
                # (we run qmake by ourselves), thus saving quite a bit of time
                -dont-process

                # always enable large file support
                -largefile

                # exceptions USE flag
                $(in_iuse exceptions && qt_use exceptions || echo -exceptions)

                # build STL support
                -stl

                # architecture/platform (mkspec)
                -arch ${arch}
                -platform $(qt4_get_mkspec)

                # prefer system libraries
                -system-zlib

                # exclude examples and demos from default build
                -nomake examples
                -nomake demos

                # disable rpath on non-prefix (bugs 380415 and 417169)
                $(use prefix || echo -no-rpath)

                # verbosity of the configure and build phases
                -verbose $(${QT4_VERBOSE_BUILD} || echo -silent)

                # precompiled headers don't work on hardened, where the flag is 
masked
                $(in_iuse pch && qt_use pch || echo -no-pch)

                # enable linker optimizations to reduce relocations, except on 
Solaris
                # where this flag seems to introduce major breakage to 
applications,
                # mostly to be seen as a core dump with the message:
                # "QPixmap: Must construct a QApplication before a QPaintDevice"
                $([[ ${CHOST} != *-solaris* ]] && echo -reduce-relocations)

                # this one is needed for all systems with a separate -liconv, 
apart from
                # Darwin, for which the sources already cater for -liconv
                $(use !elibc_glibc && [[ ${CHOST} != *-darwin* ]] && echo 
-liconv)
        )

        if use_if_iuse aqua; then
                if [[ ${CHOST##*-darwin} -ge 9 ]]; then
                        conf+=(
                                # on (snow) leopard use the new (frameworked) 
cocoa code
                                -cocoa -framework
                                # add hint for the framework location
                                -F"${QT4_LIBDIR}"
                        )
                else
                        conf+=(-no-framework)
                fi
        fi

        conf+=(
                # module-specific options
                "${myconf[@]}"
        )

        einfo "Configuring with: ${conf[@]}"
        "${S}"/configure "${conf[@]}" || die "configure failed"

        # configure is stupid and assigns QMAKE_LFLAGS twice,
        # thus the previous -rpath-link flag gets overwritten
        # and some packages (e.g. qthelp) fail to link
        sed -i -e '/^QMAKE_LFLAGS =/ s:$: $$QMAKE_LFLAGS:' \
                .qmake.cache || die "sed .qmake.cache failed"

        qt4_qmake
        qt4_foreach_target_subdir qt4_qmake
}

qt4_multilib_src_compile() {
        qt4_prepare_env

        qt4_foreach_target_subdir emake
}

qt4_multilib_src_test() {
        qt4_prepare_env

        qt4_foreach_target_subdir emake -j1 check
}

qt4_multilib_src_install() {
        qt4_prepare_env

        qt4_foreach_target_subdir emake INSTALL_ROOT="${D}" install

        if [[ ${PN} == qtcore ]]; then
                set -- emake INSTALL_ROOT="${D}" install_{mkspecs,qmake}
                einfo "Running $*"
                "$@"

                # install env.d file
                cat > "${T}/44qt4-${CHOST}" <<-_EOF_
                        LDPATH="${QT4_LIBDIR}"
                _EOF_
                doenvd "${T}/44qt4-${CHOST}"

                # install qtchooser configuration file
                cat > "${T}/qt4-${CHOST}.conf" <<-_EOF_
                        ${QT4_BINDIR}
                        ${QT4_LIBDIR}
                _EOF_

                (
                        insinto /etc/xdg/qtchooser
                        doins "${T}/qt4-${CHOST}.conf"
                )

                if multilib_is_native_abi; then
                        # convenience symlinks
                        dosym qt4-"${CHOST}".conf /etc/xdg/qtchooser/4.conf
                        dosym qt4-"${CHOST}".conf /etc/xdg/qtchooser/qt4.conf
                        # TODO bug 522646: write an eselect module to manage 
default.conf
                        dosym qt4.conf /etc/xdg/qtchooser/default.conf
                fi
        fi

        install_qconfigs
        fix_library_files
        fix_includes
}

qt4_multilib_src_install_all() {
        if [[ ${PN} == qtcore ]]; then
                # include gentoo-qconfig.h at the beginning of 
Qt{,Core}/qconfig.h
                if use aqua && [[ ${CHOST#*-darwin} -ge 9 ]]; then
                        sed -i -e '1i #include 
<QtCore/Gentoo/gentoo-qconfig.h>\n' \
                                
"${D}${QT4_LIBDIR}"/QtCore.framework/Headers/qconfig.h \
                                || die "sed failed (qconfig.h)"
                        dosym "${QT4_HEADERDIR#${EPREFIX}}"/Gentoo \
                                
"${QT4_LIBDIR#${EPREFIX}}"/QtCore.framework/Headers/Gentoo
                else
                        sed -i -e '1i #include <Gentoo/gentoo-qconfig.h>\n' \
                                "${D}${QT4_HEADERDIR}"/Qt{,Core}/qconfig.h \
                                || die "sed failed (qconfig.h)"
                fi

                dodir "${QT4_DATADIR#${EPREFIX}}"/mkspecs/gentoo
                mv "${D}${QT4_DATADIR}"/mkspecs/{qconfig.pri,gentoo/} || die
        fi

        # install private headers of a few modules
        if has ${PN} qtcore qtdeclarative qtgui qtscript; then
                local moduledir=${PN#qt}
                local modulename=Qt$(tr 'a-z' 'A-Z' <<< 
${moduledir:0:1})${moduledir:1}
                [[ ${moduledir} == core ]] && moduledir=corelib

                einfo "Installing private headers into 
${QT4_HEADERDIR}/${modulename}/private"
                insinto "${QT4_HEADERDIR#${EPREFIX}}"/${modulename}/private
                find "${S}"/src/${moduledir} -type f -name '*_p.h' -exec doins 
'{}' + || die
        fi

        # remove .la files since we are building only shared libraries
        prune_libtool_files
}

# @FUNCTION: qt4-build-multilib_pkg_postinst
# @DESCRIPTION:
# Regenerate configuration, plus throw a message about possible
# breakages and proposed solutions.
qt4-build-multilib_pkg_postinst() {
        generate_qconfigs
}

# @FUNCTION: qt4-build-multilib_pkg_postrm
# @DESCRIPTION:
# Regenerate configuration when the package is completely removed.
qt4-build-multilib_pkg_postrm() {
        generate_qconfigs
}

# @FUNCTION: qt_use
# @USAGE: <flag> [feature] [enableval]
# @DESCRIPTION:
# Outputs "-${enableval}-${feature}" if <flag> is enabled, "-no-${feature}"
# otherwise. If [feature] is not specified, <flag> is used in its place.
# If [enableval] is not specified, the "-${enableval}" prefix is omitted.
qt_use() {
        use "$1" && echo "${3:+-$3}-${2:-$1}" || echo "-no-${2:-$1}"
}

# @FUNCTION: qt_native_use
# @USAGE: <flag> [feature] [enableval]
# @DESCRIPTION:
# Outputs "-${enableval}-${feature}" if <flag> is enabled and we are currently
# building for the native ABI, "-no-${feature}" otherwise. If [feature] is not
# specified, <flag> is used in its place. If [enableval] is not specified,
# the "-${enableval}" prefix is omitted.
qt_native_use() {
        multilib_is_native_abi && use "$1" && echo "${3:+-$3}-${2:-$1}" || echo 
"-no-${2:-$1}"
}


######  Internal functions  ######

# @FUNCTION: qt4_prepare_env
# @INTERNAL
# @DESCRIPTION:
# Prepares the environment for building Qt.
qt4_prepare_env() {
        # setup installation directories
        QT4_PREFIX=${EPREFIX}/usr
        QT4_HEADERDIR=${QT4_PREFIX}/include/qt4
        QT4_LIBDIR=${QT4_PREFIX}/$(get_libdir)/qt4
        QT4_PCDIR=${QT4_PREFIX}/$(get_libdir)/pkgconfig
        QT4_BINDIR=${QT4_LIBDIR}/bin
        QT4_PLUGINDIR=${QT4_LIBDIR}/plugins
        QT4_IMPORTDIR=${QT4_LIBDIR}/imports
        QT4_DATADIR=${QT4_PREFIX}/share/qt4
        QT4_DOCDIR=${QT4_PREFIX}/share/doc/qt-${PV}
        QT4_TRANSLATIONDIR=${QT4_DATADIR}/translations
        QT4_EXAMPLESDIR=${QT4_DATADIR}/examples
        QT4_DEMOSDIR=${QT4_DATADIR}/demos
        QT4_SYSCONFDIR=${EPREFIX}/etc/qt4
        QMAKE_LIBDIR_QT=${QT4_LIBDIR}

        export XDG_CONFIG_HOME="${T}"
}

# @FUNCTION: qt4_foreach_target_subdir
# @INTERNAL
# @DESCRIPTION:
# Executes the given command inside each directory listed in 
QT4_TARGET_DIRECTORIES.
qt4_foreach_target_subdir() {
        local subdir
        for subdir in ${QT4_TARGET_DIRECTORIES}; do
                mkdir -p "${subdir}" || die
                pushd "${subdir}" >/dev/null || die

                einfo "Running $* ${subdir:+in ${subdir}}"
                "$@"

                popd >/dev/null || die
        done
}

# @FUNCTION: qt4_symlink_tools_to_build_dir
# @INTERNAL
# @DESCRIPTION:
# Symlinks qtcore tools to BUILD_DIR,
# so that they can be used when building other modules.
qt4_symlink_tools_to_build_dir() {
        local tool= tools=()
        if [[ ${PN} != qtcore ]]; then
                tools+=(qmake moc rcc uic)
        fi

        mkdir -p "${BUILD_DIR}"/bin || die
        pushd "${BUILD_DIR}"/bin >/dev/null || die

        for tool in "${tools[@]}"; do
                [[ -e ${QT4_BINDIR}/${tool} ]] || continue
                ln -s "${QT4_BINDIR}/${tool}" . || die "failed to symlink 
${tool}"
        done

        popd >/dev/null || die
}

# @FUNCTION: qt4_qmake
# @INTERNAL
# @DESCRIPTION:
# Helper function that runs qmake in the current target subdir.
# Intended to be called by qt4_foreach_target_subdir().
qt4_qmake() {
        local projectdir=${PWD/#${BUILD_DIR}/${S}}

        "${BUILD_DIR}"/bin/qmake \
                CONFIG+=nostrip \
                LIBS+=-L"${QT4_LIBDIR}" \
                "${projectdir}" \
                || die "qmake failed (${projectdir})"
}

# @FUNCTION: install_qconfigs
# @INTERNAL
# @DESCRIPTION:
# Install gentoo-specific mkspecs configurations.
install_qconfigs() {
        local x
        if [[ -n ${QCONFIG_ADD} || -n ${QCONFIG_REMOVE} ]]; then
                for x in QCONFIG_ADD QCONFIG_REMOVE; do
                        [[ -n ${!x} ]] && echo ${x}=${!x} >> 
"${BUILD_DIR}"/${PN}-qconfig.pri
                done
                insinto ${QT4_DATADIR#${EPREFIX}}/mkspecs/gentoo
                doins "${BUILD_DIR}"/${PN}-qconfig.pri
        fi

        if [[ -n ${QCONFIG_DEFINE} ]]; then
                for x in ${QCONFIG_DEFINE}; do
                        echo "#define ${x}" >> 
"${BUILD_DIR}"/gentoo-${PN}-qconfig.h
                done
                insinto ${QT4_HEADERDIR#${EPREFIX}}/Gentoo
                doins "${BUILD_DIR}"/gentoo-${PN}-qconfig.h
        fi
}

# @FUNCTION: generate_qconfigs
# @INTERNAL
# @DESCRIPTION:
# Generates gentoo-specific qconfig.{h,pri}.
generate_qconfigs() {
        if [[ -n ${QCONFIG_ADD} || -n ${QCONFIG_REMOVE} || -n ${QCONFIG_DEFINE} 
|| ${PN} == qtcore ]]; then
                local x qconfig_add qconfig_remove qconfig_new
                for x in "${ROOT}${QT4_DATADIR}"/mkspecs/gentoo/*-qconfig.pri; 
do
                        [[ -f ${x} ]] || continue
                        qconfig_add+=" $(sed -n 's/^QCONFIG_ADD=//p' "${x}")"
                        qconfig_remove+=" $(sed -n 's/^QCONFIG_REMOVE=//p' 
"${x}")"
                done

                # these error checks do not use die because dying in 
pkg_post{inst,rm}
                # just makes things worse.
                if [[ -e "${ROOT}${QT4_DATADIR}"/mkspecs/gentoo/qconfig.pri ]]; 
then
                        # start with the qconfig.pri that qtcore installed
                        if ! cp 
"${ROOT}${QT4_DATADIR}"/mkspecs/gentoo/qconfig.pri \
                                "${ROOT}${QT4_DATADIR}"/mkspecs/qconfig.pri; 
then
                                eerror "cp qconfig failed."
                                return 1
                        fi

                        # generate list of QT_CONFIG entries from the existing 
list
                        # including qconfig_add and excluding qconfig_remove
                        for x in $(sed -n 's/^QT_CONFIG +=//p' \
                                "${ROOT}${QT4_DATADIR}"/mkspecs/qconfig.pri) 
${qconfig_add}; do
                                        has ${x} ${qconfig_remove} || 
qconfig_new+=" ${x}"
                        done

                        # replace the existing QT_CONFIG list with qconfig_new
                        if ! sed -i -e "s/QT_CONFIG +=.*/QT_CONFIG += 
${qconfig_new}/" \
                                "${ROOT}${QT4_DATADIR}"/mkspecs/qconfig.pri; 
then
                                eerror "Sed for QT_CONFIG failed"
                                return 1
                        fi

                        # create Gentoo/qconfig.h
                        if [[ ! -e ${ROOT}${QT4_HEADERDIR}/Gentoo ]]; then
                                if ! mkdir -p "${ROOT}${QT4_HEADERDIR}"/Gentoo; 
then
                                        eerror "mkdir ${QT4_HEADERDIR}/Gentoo 
failed"
                                        return 1
                                fi
                        fi
                        : > "${ROOT}${QT4_HEADERDIR}"/Gentoo/gentoo-qconfig.h
                        for x in 
"${ROOT}${QT4_HEADERDIR}"/Gentoo/gentoo-*-qconfig.h; do
                                [[ -f ${x} ]] || continue
                                cat "${x}" >> 
"${ROOT}${QT4_HEADERDIR}"/Gentoo/gentoo-qconfig.h
                        done
                else
                        rm -f "${ROOT}${QT4_DATADIR}"/mkspecs/qconfig.pri
                        rm -f "${ROOT}${QT4_HEADERDIR}"/Gentoo/gentoo-qconfig.h
                        rmdir "${ROOT}${QT4_DATADIR}"/mkspecs \
                                "${ROOT}${QT4_DATADIR}" \
                                "${ROOT}${QT4_HEADERDIR}"/Gentoo \
                                "${ROOT}${QT4_HEADERDIR}" 2>/dev/null
                fi
        fi
}

# @FUNCTION: fix_library_files
# @INTERNAL
# @DESCRIPTION:
# Fixes the paths in *.prl and *.pc, as they are wrong due to sandbox, and
# moves the *.pc files into the pkgconfig directory.
fix_library_files() {
        local libfile
        for libfile in "${D}"/${QT4_LIBDIR}/{*.prl,pkgconfig/*.pc}; do
                if [[ -e ${libfile} ]]; then
                        sed -i -e "s:${S}/lib:${QT4_LIBDIR}:g" ${libfile} || 
die "sed on ${libfile} failed"
                fi
        done

        # pkgconfig files refer to WORKDIR/bin as the moc and uic locations
        for libfile in "${D}"/${QT4_LIBDIR}/pkgconfig/*.pc; do
                if [[ -e ${libfile} ]]; then
                        sed -i -e "s:${S}/bin:${QT4_BINDIR}:g" ${libfile} || 
die "sed on ${libfile} failed"

                # Move .pc files into the pkgconfig directory
                dodir ${QT4_PCDIR#${EPREFIX}}
                mv ${libfile} "${D}"/${QT4_PCDIR}/ || die "moving ${libfile} to 
${D}/${QT4_PCDIR}/ failed"
                fi
        done

        # Don't install an empty directory
        rmdir "${D}"/${QT4_LIBDIR}/pkgconfig
}

# @FUNCTION: fix_includes
# @DESCRIPTION:
# For MacOS X we need to add some symlinks when frameworks are
# being used, to avoid complications with some more or less stupid packages.
fix_includes() {
        if use_if_iuse aqua && [[ ${CHOST##*-darwin} -ge 9 ]]; then
                local frw dest f h rdir
                # Some packages tend to include <Qt/...>
                dodir "${QT4_HEADERDIR#${EPREFIX}}"/Qt

                # Fake normal headers when frameworks are installed... eases 
life later
                # on, make sure we use relative links though, as some ebuilds 
assume
                # these dirs exist in src_install to add additional files
                f=${QT4_HEADERDIR}
                h=${QT4_LIBDIR}
                while [[ -n ${f} && ${f%%/*} == ${h%%/*} ]] ; do
                        f=${f#*/}
                        h=${h#*/}
                done
                rdir=${h}
                f="../"
                while [[ ${h} == */* ]] ; do
                        f="${f}../"
                        h=${h#*/}
                done
                rdir="${f}${rdir}"

                for frw in "${D}${QT4_LIBDIR}"/*.framework; do
                        [[ -e "${frw}"/Headers ]] || continue
                        f=$(basename ${frw})
                        dest="${QT4_HEADERDIR#${EPREFIX}}"/${f%.framework}
                        dosym "${rdir}"/${f}/Headers "${dest}"

                        # Link normal headers as well.
                        for hdr in "${D}/${QT4_LIBDIR}/${f}"/Headers/*; do
                                h=$(basename ${hdr})
                                dosym "../${rdir}"/${f}/Headers/${h} \
                                        "${QT4_HEADERDIR#${EPREFIX}}"/Qt/${h}
                        done
                done
        fi
}

# @FUNCTION: qt4_get_mkspec
# @INTERNAL
# @DESCRIPTION:
# Returns the right mkspec for the current CHOST/CXX combination.
qt4_get_mkspec() {
        local spec=

        case ${CHOST} in
                *-linux*)
                        spec=linux ;;
                *-darwin*)
                        use_if_iuse aqua &&
                                spec=macx ||   # mac with carbon/cocoa
                                spec=darwin ;; # darwin/mac with X11
                *-freebsd*|*-dragonfly*)
                        spec=freebsd ;;
                *-netbsd*)
                        spec=netbsd ;;
                *-openbsd*)
                        spec=openbsd ;;
                *-aix*)
                        spec=aix ;;
                hppa*-hpux*)
                        spec=hpux ;;
                ia64*-hpux*)
                        spec=hpuxi ;;
                *-solaris*)
                        spec=solaris ;;
                *)
                        die "qt4-build-multilib.eclass: unsupported CHOST 
'${CHOST}'" ;;
        esac

        case $(tc-getCXX) in
                *g++*)
                        spec+=-g++ ;;
                *clang*)
                        if [[ -d ${S}/mkspecs/unsupported/${spec}-clang ]]; then
                                spec=unsupported/${spec}-clang
                        else
                                ewarn "${spec}-clang mkspec does not exist, 
falling back to ${spec}-g++"
                                spec+=-g++
                        fi ;;
                *icpc*)
                        if [[ -d ${S}/mkspecs/${spec}-icc ]]; then
                                spec+=-icc
                        else
                                ewarn "${spec}-icc mkspec does not exist, 
falling back to ${spec}-g++"
                                spec+=-g++
                        fi ;;
                *)
                        die "qt4-build-multilib.eclass: unsupported compiler 
'$(tc-getCXX)'" ;;
        esac

        # Add -64 for 64-bit prefix profiles
        if use amd64-linux || use ia64-linux || use ppc64-linux ||
                use x64-macos ||
                use sparc64-freebsd || use x64-freebsd || use x64-openbsd ||
                use ia64-hpux ||
                use sparc64-solaris || use x64-solaris
        then
                [[ -d ${S}/mkspecs/${spec}-64 ]] && spec+=-64
        fi

        echo ${spec}
}




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