[gdk-pixbuf] meson: Use configure_file() to copy typesfile

[Emmanuele Bassi <ebassi src gnome org>]

commit cf7491b035c7caebd872584a272b7faefef00511
Author: Jan Alexander Steffens (heftig) <jan steffens gmail com>
Date:   Mon Aug 7 20:55:35 2017 +0200

    meson: Use configure_file() to copy typesfile
    
    The working directory is the builddir and gnome.gtkdoc is not smart
    enough to figure out whether the filename(s) passed are found in the
    builddir or srcdir. Using files() doesn't help, either, since it always
    generates paths to the builddir.
    
    Other projects (GStreamer, Grilo) seem to use configure_file to copy the
    typesfile to the builddir. Follow this.
    
    This fixes the following error:
    
        Cannot open gdk-pixbuf.types: No such file or directory
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785964

 docs/reference/gdk-pixbuf/meson.build |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gdk-pixbuf/meson.build b/docs/reference/gdk-pixbuf/meson.build
index 47f2410..3fb01f0 100644
--- a/docs/reference/gdk-pixbuf/meson.build
+++ b/docs/reference/gdk-pixbuf/meson.build
@@ -21,6 +21,12 @@ private_headers = [
 ]
 
 if get_option('with_docs')
+  # This should not be needed, but gnome.gtkdoc() does not copy the
+  # .types file into the builddir, if one is found
+  configure_file(input: 'gdk-pixbuf.types',
+                 output: 'gdk-pixbuf.types',
+                 configuration: configuration_data())
+
   gnome.gtkdoc('gdk-pixbuf',
                main_xml: 'gdk-pixbuf.xml',
                src_dir: [