libpng: split to host and target package

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/graphics/libpng-host/build

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+################################################################################
+#      This file is part of OpenELEC - http://www.openelec.tv
+#      Copyright (C) 2009-2012 Stephan Raue (stephan@openelec.tv)
+#
+#  This Program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2, or (at your option)
+#  any later version.
+#
+#  This Program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with OpenELEC.tv; see the file COPYING.  If not, write to
+#  the Free Software Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110, USA.
+#  http://www.gnu.org/copyleft/gpl.html
+################################################################################
+
+. config/options $1
+
+$SCRIPTS/unpack libpng
+
+LIBPNG_DIR=`ls -d $BUILD/libpng-[0-9]*`
+
+setup_toolchain host
+
+cd $LIBPNG_DIR
+
+mkdir -p .build-host && cd .build-host
+../configure --host=$HOST_NAME \
+             --build=$HOST_NAME \
+             --prefix=$ROOT/$TOOLCHAIN \
+             --sysconfdir=$ROOT/$TOOLCHAIN/etc \
+             --disable-static \
+             --enable-shared \
+
+make
+make install

packages/graphics/libpng-host/meta

@@ -0,0 +1,36 @@
+################################################################################
+#      This file is part of OpenELEC - http://www.openelec.tv
+#      Copyright (C) 2009-2012 Stephan Raue (stephan@openelec.tv)
+#
+#  This Program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2, or (at your option)
+#  any later version.
+#
+#  This Program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with OpenELEC.tv; see the file COPYING.  If not, write to
+#  the Free Software Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110, USA.
+#  http://www.gnu.org/copyleft/gpl.html
+################################################################################
+
+PKG_NAME="libpng"
+PKG_VERSION=""
+PKG_REV="1"
+PKG_ARCH="any"
+PKG_LICENSE="OSS"
+PKG_SITE="http://www.libpng.org/"
+PKG_URL=""
+PKG_DEPENDS=""
+PKG_BUILD_DEPENDS="toolchain zlib-host"
+PKG_PRIORITY="optional"
+PKG_SECTION="graphics"
+PKG_SHORTDESC="libpng: Portable Network Graphics (PNG) Reference Library"
+PKG_LONGDESC="PNG (Portable Network Graphics) is an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits."
+PKG_IS_ADDON="no"
+
+PKG_AUTORECONF="no"

packages/graphics/libpng/build

@@ -25,8 +25,10 @@
 CFLAGS="$CFLAGS -fPIC -DPIC"
 
 cd $PKG_BUILD
+mkdir -p .build-target && cd .build-target
+
 ac_cv_lib_z_zlibVersion=yes \
-./configure --host=$TARGET_NAME \
+../configure --host=$TARGET_NAME \
              --build=$HOST_NAME \
              --prefix=/usr \
              --sysconfdir=/etc \