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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/wxwidgets.eclass,v 1.23 2007/11/25 14:19:39 swegener Exp $
# @ECLASS: wxwidgets.eclass
# @MAINTAINER:
# dirtyepic@gentoo.org
# wxwindows@gentoo.org
# @BLURB: Manages build configuration for wxGTK-using packages.
# @DESCRIPTION:
# The wxGTK libraries come in several different possible configurations
# (release/debug, ansi/unicode, etc.), most of which can be installed
# side-by-side. The purpose of this eclass is to give ebuilds the ability to
# specify what particular flavour they require to build against without
# interfering with the user-set system configuration.
#
# Ebuilds that use wxGTK must inherit this eclass. Otherwise the system
# default will be used, which would be anything the user set it to.
#
# Ebuilds are also required to set the global variable WX_GTK_VER, containing
# the wxGTK SLOT the ebuild requires. Note that in order for this to work,
# WX_GTK_VER needs to be set before inheriting the eclass.
#
# Simple Usage:
#
# WX_GTK_VER="2.6"
# inherit wxwidgets
# DEPEND="=x11-libs/wxGTK-2.6*"
# RDEPEND="=x11-libs/wxGTK-2.6*"
#
# That's it. The eclass will select a sane default configuration to use. In
# wxGTK-2.6 the default is ansi. In wxGTK-2.8 and later it's unicode. These
# are the defaults because they are always guaranteed to exist.
#
# You'll often find yourself in need of a bit more control. For that see the
# need-wxwidgets function below.
inherit eutils multilib
# We do this globally so ebuilds can get sane defaults just by inheriting. They
# can be overridden with need-wxwidgets later if need be.
if [[ -z ${WX_CONFIG} ]]; then
if [[ -n ${WX_GTK_VER} ]]; then
if [[ ${WX_GTK_VER} == 2.6 ]]; then
wxchar="ansi"
elif [[ ${WX_GTK_VER} == 2.8 ]]; then
wxchar="unicode"
fi
for wxtoolkit in gtk2 base; do
for wxdebug in release debug; do
wxconf="${wxtoolkit}-${wxchar}-${wxdebug}-${WX_GTK_VER}"
[[ -f /usr/$(get_libdir)/wx/config/${wxconf} ]] || continue
WX_CONFIG="/usr/$(get_libdir)/wx/config/${wxconf}"
# TODO: needed for the wx-config wrapper
WX_ECLASS_CONFIG="${WX_CONFIG}"
break
done
[[ -n ${WX_CONFIG} ]] && break
done
[[ -n ${WX_CONFIG} ]] && export WX_CONFIG WX_ECLASS_CONFIG
fi
fi
# @FUNCTION: need-wxwidgets
# @USAGE: <configuration>
# @DESCRIPTION:
# need-wxwidgets is called with one argument, the wxGTK configuration to use.
#
# Available configurations are:
#
# ansi
# unicode
# base-ansi
# base-unicode
#
# Note that in >=wxGTK-2.8, only the unicode versions are available. The
# eclass will automatically map ansi to unicode if WX_GTK_VER is set to 2.8 or
# later.
#
# There is one deprecated configuration, gtk2, that is equivalent to ansi.
# It is around for historical reasons and shouldn't be used by new ebuilds.
#
# This function will set the variable WX_CONFIG to the path of the wx-config
# script to use. In most cases you shouldn't have to use it since the
# /usr/bin/wx-config wrapper points to ${WX_CONFIG} when called from portage.
need-wxwidgets() {
debug-print-function $FUNCNAME $*
local wxtoolkit wxchar wxdebug wxconf
if [[ -z ${WX_GTK_VER} ]]; then
echo
eerror "WX_GTK_VER must be set before calling $FUNCNAME."
echo
die "WX_GTK_VER missing"
fi
if [[ ${WX_GTK_VER} != 2.6 \
&& ${WX_GTK_VER} != 2.8 ]]; then
echo
eerror "Invalid WX_GTK_VER: ${WX_GTK_VER} - must be set to a valid wxGTK SLOT."
echo
die "Invalid WX_GTK_VER"
fi
debug-print "WX_GTK_VER is ${WX_GTK_VER}"
case $1 in
ansi)
debug-print-section ansi
if [[ ${WX_GTK_VER} == 2.6 ]]; then
wxchar="ansi"
else
wxchar="unicode"
fi
check_wxuse X
;;
unicode)
debug-print-section unicode
check_wxuse X
[[ ${WX_GTK_VER} == 2.6 ]] && check_wxuse unicode
wxchar="unicode"
;;
base)
debug-print-section base
if [[ ${WX_GTK_VER} == 2.6 ]]; then
wxchar="ansi"
else
wxchar="unicode"
fi
;;
base-unicode)
debug-print-section base-unicode
[[ ${WX_GTK_VER} == 2.6 ]] && check_wxuse unicode
wxchar="unicode"
;;
# backwards compatibility
gtk2)
debug-print-section gtk2
if [[ ${WX_GTK_VER} == 2.6 ]]; then
wxchar="ansi"
else
wxchar="unicode"
fi
check_wxuse X
;;
*)
echo
eerror "Invalid $FUNCNAME argument: $1"
echo
die "Invalid argument"
;;
esac
debug-print "wxchar is ${wxchar}"
# since we're no longer in global scope we call built_with_use instead of
# all the crazy looping
# base can be provided by both gtk2 and base installations
if built_with_use =x11-libs/wxGTK-${WX_GTK_VER}* X; then
wxtoolkit="gtk2"
else
wxtoolkit="base"
fi
debug-print "wxtoolkit is ${wxtoolkit}"
# debug or release?
if built_with_use =x11-libs/wxGTK-${WX_GTK_VER}* debug; then
wxdebug="debug"
else
wxdebug="release"
fi
debug-print "wxdebug is ${wxdebug}"
# put it all together
wxconf="${wxtoolkit}-${wxchar}-${wxdebug}-${WX_GTK_VER}"
debug-print "wxconf is ${wxconf}"
# if this doesn't work, something is seriously screwed
if [[ ! -f /usr/$(get_libdir)/wx/config/${wxconf} ]]; then
echo
eerror "Failed to find configuration ${wxconf}"
echo
die "Missing wx-config"
fi
debug-print "Found config ${wxconf} - setting WX_CONFIG"
# This is exported as some configure scripts will check for its presence in
# the environment.
export WX_CONFIG="/usr/$(get_libdir)/wx/config/${wxconf}"
debug-print "WX_CONFIG is ${WX_CONFIG}"
# TODO: Used by the wx-config wrapper
export WX_ECLASS_CONFIG="${WX_CONFIG}"
echo
einfo "Requested wxWidgets: ${1} ${WX_GTK_VER}"
einfo "Using wxWidgets: ${wxconf}"
echo
}
# @FUNCTION: check_wxuse
# @USAGE: <USE flag>
# @DESCRIPTION:
# Provides a consistant way to check if wxGTK was built with a particular USE
# flag enabled.
check_wxuse() {
debug-print-function $FUNCNAME $*
[[ -n ${WX_GTK_VER} ]] \
|| _wxerror "WX_GTK_VER must be set before calling"
ebegin "Checking wxGTK-${WX_GTK_VER} for ${1} support"
if built_with_use =x11-libs/wxGTK-${WX_GTK_VER}* "${1}"; then
eend 0
else
eend 1
echo
eerror "${FUNCNAME} - You have requested functionality that requires ${1} support to"
eerror "have been built into x11-libs/wxGTK."
eerror
eerror "Please re-merge =x11-libs/wxGTK-${WX_GTK_VER}* with the ${1} USE flag enabled."
die "Missing USE flags."
fi
}
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