Fix AppImage on systems with glib version > 2.68 (#2129).

The approach here is to bundle more stuff, and most of the details
are taken from the Inkscape packaging/appimage/generate.sh script.

diff --git a/cscript b/cscript
index 69feeae14074861e3d8be7ccc4780fce3e97273b..7a76e133b99a091004d36f944b308cc30830ca2d 100644 (file)
--- a/cscript
+++ b/cscript
@@ -709,6 +709,14 @@ def make_appimage(target, nice_name, internal_name, version):
     lib = 'usr/lib/x86_64-linux-gnu'
     target.command(f'mkdir -p build/{nice_filename}.AppDir/{lib}/gdk-pixbuf-2.0/2.10.0')
     target.command(f'cp -a /{lib}/gdk-pixbuf-2.0 build/{nice_filename}.AppDir/usr/lib/x86_64-linux-gnu/')
+    for package in ['libc6', 'libglib2.0-0', 'gnome-settings-daemon-schemas', 'librsvg2-common', 'libgdk-pixbuf2.0-0', 'libpango-1.0-0', 'libpangoft2-1.0-0', 'libpangocairo-1.0-0']:
+        target.command(f'apt download {package}')
+        target.command(f'dpkg-deb -x {package}*.deb {appdir}')
+    target.command(f'glib-compile-schemas {appdir}/usr/share/glib-2.0/schemas')
+    target.command(f'sed -i -e "s|/usr/lib/x86_64-linux-gnu/gdk-pixbuf-.*/.*/loaders/||g" {appdir}/usr/lib/x86_64-linux-gnu/gdk-pixbuf-*/*/loaders.cache')
+    # Stop anything loading from outside the AppImage
+    target.command(f'sed -i -e "s|/usr|/xxx|g" {appdir}/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2')
+
     if internal_name == 'dcpomatic2_disk':
         target.command(f'mkdir -p {appdir}/usr/share/polkit-1/actions')
         target.command(f'cp {target.directory}/share/polkit-1/actions/com.dcpomatic.write-drive.policy {appdir}/usr/share/polkit-1/actions')
@@ -717,7 +725,9 @@ def make_appimage(target, nice_name, internal_name, version):
         print('#!/bin/bash', file=f)
         print('export PATH=$APPDIR/usr/bin:$PATH', file=f)
         print('export XDG_DATA_DIRS="$APPDIR/usr/share/:/usr/share/:$XDG_DATA_DIRS"', file=f)
-        print('export LD_LIBRARY_PATH=$APPDIR/usr/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}', file=f)
+        print('export GDK_PIXBUF_MODULEDIR=$(readlink -f "$APPDIR"/usr/lib/x86_64-linux-gnu/gdk-pixbuf-*/*/loaders/ )', file=f)
+        print('export GDK_PIXBUF_MODULE_FILE=$(readlink -f "$APPDIR"/usr/lib/x86_64-linux-gnu/gdk-pixbuf-*/*/loaders.cache )', file=f)
+        print('export LD_LIBRARY_PATH=$GDK_PIXBUF_MODULEDIR:$APPDIR/usr/lib:$APPDIR/usr/lib/x86_64-linux-gnu', file=f)
         print(f'"$APPDIR"/usr/bin/{internal_name} $@', file=f)
     target.command(f'chmod a+rx {appdir}/AppRun')
     with open(f'{appdir}/{internal_name}.desktop', 'w') as f: