Gtk3: generate gdk-pixbuf's loader.cache from loaders in bindist

Point `gdk-pixbuf-query-loaders` to the win32 bindist's `lib/gdk-pixbuf-2.0/2.10.0/` directory to
generate a proper `loaders.cache` file from the pixbuf loaders we've copied into the bindist.
Might fix bug #2081. 


git-svn-id: https://svn.code.sf.net/p/vice-emu/code/trunk@45367 379a1393-f5fb-40a0-bcee-ef074d9b53f7

vice/src/arch/gtk3/make-bindist_win32.sh

@@ -136,10 +136,16 @@ done
 if test x"$CROSS" != "xtrue"; then
 
 # The following lines assume that this script is run by MSYS2.
+  curdir=`pwd`
   cp `ntldd -R $BUILDPATH/bin/x64sc.exe|gawk '/\\\\bin\\\\/{print $3;}'|cygpath -f -` $BUILDPATH/bin
   cd $MINGW_PREFIX
   cp bin/lib{lzma-5,rsvg-2-2,xml2-2}.dll $BUILDPATH/bin
-  cp --parents lib/gdk-pixbuf-2.0/2.10.0/loaders.cache lib/gdk-pixbuf-2.0/2.10.0/loaders/*pixbufloader*{png,svg,xpm}.dll $BUILDPATH
+  cp --parents lib/gdk-pixbuf-2.0/2.10.0/loaders/*pixbufloader*{png,svg,xpm}.dll $BUILDPATH
+  # generate loaders.cache from the copied loaders in the binidst, not the system loaders
+  cd $BUILDPATH
+  GDK_PIXBUF_MODULEDIR=lib/gdk-pixbuf-2.0/2.10.0/loaders gdk-pixbuf-query-loaders > lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+  cd $MINGW_PREFIX
+
   # GTK3 accepts having only scalable icons,
   # which reduces the bindist size considerably.
   cp --parents -a share/icons/Adwaita/{index.*,scalable,symbolic} $BUILDPATH
@@ -154,6 +160,8 @@ if test x"$CROSS" != "xtrue"; then
     cp `ntldd -R $UNZIPBIN | gawk '/\\\\bin\\\\/{print $3;}' | cygpath -f -` $BUILDPATH/bin
   fi
 
+  cd "$curdir"
+
 else
 
 # The following lines assume a cross compiler,
@@ -230,6 +238,10 @@ EOF
 
 fi
 
+
+echo "TOPSRCDIR = $TOPSRCDIR"
+echo "BUILDPATH = $BUILDPATH"
+
 cp -a $TOPSRCDIR/data/C128 $TOPSRCDIR/data/C64 $BUILDPATH
 cp -a $TOPSRCDIR/data/C64DTV $TOPSRCDIR/data/CBM-II $BUILDPATH
 cp -a $TOPSRCDIR/data/DRIVES $TOPSRCDIR/data/PET $BUILDPATH