inkscape: Add version 0.92.3

The release notes are available online [1].

> Inkscape 0.92.3 is mainly a stability and bugfix release, but it also
> brings some small new features, like being able to set an ellipses'
> radii numerically in the tool controls, or switching the writing
> direction from left-to-right to right-to-left. Windows users will be
> happy to learn that the long startup times many of them were seeing
> could greatly be reduced. A new rendering option with an adjusted
> default value can vastly improve performance when working with
> filters.
>
> Many of the bug fixes address important functionality, like printing
> issues, crashes with the node tool or problems with keyboard
> shortcuts.

Update the URLs, and also the ImageMagick version, as the old one, is
not available for download anymore.

[1] https://inkscape.org/en/release/0.92.3/

Fixes: #16

inkscape-0.92.3-0.build.sh

@@ -0,0 +1,109 @@
+#! /bin/sh
+set -xe
+
+PKG=inkscape
+VERSION=0.92.3
+BUILD=0
+PREFIX=/pkg/$PKG-$VERSION-$BUILD
+
+mkdir -p $PREFIX
+cat >$PREFIX/profile <<-EOF
+	PATH=$PREFIX/bin:\$PATH
+EOF
+
+source $PREFIX/profile
+
+export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig
+
+# what is the problem here?
+# https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html
+#
+# our installed Glib & friends are build with an old cxx( which didn't use the CXX11 ABI)
+# our installed imagemagick is build with a new cxx (which defaulted to CXX11 ABI)
+#
+# we want to use both libraries. So neither _GLIBCXX_USE_CXX11_ABI=1 (the default now) nor
+# _GLIBCXX_USE_CXX11_ABI=0 by it self is enough.
+#
+# with _GLIBCXX_USE_CXX11_ABI=1 (default)
+#   ./lib/libinkscape_base.so: undefined reference to `Magick::Blob::base64(std::string)'
+#   ...
+# with _GLIBCXX_USE_CXX11_ABI=0 (default)
+#   main.cpp:(.text+0x2a01): undefined reference to `Glib::build_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
+#   ...
+#
+# As a quick fix we include ImageMagick with _GLIBCXX_USE_CXX11_ABI=0 here, so this ImageMagick
+# library is compatible to the installed Glib and friends.
+#
+# We can't use the newest ImageMagick:
+#
+#   /pkg/inkscape-0.92.1-0/build/inkscape-0.92.1/src/extension/internal/bitmap/channel.cpp: In member function ‘virtual void Inkscape::Extension::Internal::Bitmap::Channel::applyEffect(Magick::Image*)’:
+#   /pkg/inkscape-0.92.1-0/build/inkscape-0.92.1/src/extension/internal/bitmap/channel.cpp:31:58: error: ‘MatteChannel’ is not a member of ‘Magick’
+#
+
+# ImageMagick
+
+VER=6.9.9-40
+
+mkdir -p $PREFIX/build
+cd $PREFIX/build
+test -e ImageMagick-$VER.tar.xz || wget https://www.imagemagick.org/download/releases/ImageMagick-$VER.tar.xz
+test -d ImageMagick-$VER || tar xf ImageMagick-$VER.tar.xz
+cd  ImageMagick-$VER
+./configure --prefix=$PREFIX CXXFLAGS=-D_GLIBCXX_USE_CXX11_ABI=0
+make -j $(nproc)
+make install
+
+# inkscape
+
+mkdir -p $PREFIX/build
+cd $PREFIX/build
+
+test -e inkscape-$VERSION.tar.bz2 || wget https://inkscape.org/en/gallery/item/12187/inkscape-$VERSION.tar.bz2
+test -d inkscape-$VERSION || tar xf inkscape-$VERSION.tar.bz2
+cd inkscape-$VERSION
+
+# another problem: the CMakeLists of inkscape includes
+#  if(APPLE)
+#      SET(CMAKE_MACOSX_RPATH TRUE)
+#      SET(CMAKE_INSTALL_RPATH "@loader_path/../lib/inkscape")
+#  else()
+#      SET(CMAKE_INSTALL_RPATH "$ORIGIN/../lib/inkscape")
+#  endif()
+# Thereby overwriting any RPATH we might set e.g.
+#   cmake -DCMAKE_INSTALL_PREFIX:PATH=$PREFIX -DCMAKE_CXX_FLAGS=-D_GLIBCXX_USE_CXX11_ABI=0 -DCMAKE_INSTALL_RPATH=$PREFIX/lib .
+# to find ImageMagick library.
+
+patch -p1 <<'EOF'
+From: Unpriviledged Software Builder <build@theinternet.molgen.mpg.de>
+Date: Fri, 24 Feb 2017 13:02:24 +0100
+Subject: [PATCH] Honor CMAKE_INSTALL_RPATH
+
+This enables us to configure CMAKE_INSTALL_RPATH e.g. use
+
+  cmake -DCMAKE_INSTALL_PREFIX:PATH=$PREFIX -DCMAKE_INSTALL_RPATH=$PREFIX/lib .
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index e5d8919..e253961 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -27,7 +27,7 @@ if(APPLE)
+     SET(CMAKE_MACOSX_RPATH TRUE)
+     SET(CMAKE_INSTALL_RPATH "@loader_path/../lib/inkscape")
+ else()
+-    SET(CMAKE_INSTALL_RPATH "$ORIGIN/../lib/inkscape")
++    SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_RPATH}:$ORIGIN/../lib/inkscape")
+ endif()
+ 
+ cmake_policy(SET CMP0003 NEW) # don't be prolific with library paths
+-- 
+2.4.1
+
+EOF
+
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$PREFIX -DCMAKE_CXX_FLAGS=-D_GLIBCXX_USE_CXX11_ABI=0 -DCMAKE_INSTALL_RPATH=$PREFIX/lib .
+make -j $(nproc)
+make install
+