[gdk-pixbuf: 1/2] gdk-pixbuf/gdk-pixbuf-io.c: fix build without gmodule

[Emmanuele Bassi <ebassi src gnome org>]

commit d6893bf9c44d1c8506d8e09f7aa9ca6d08865984
Author: Fabrice Fontaine <fontaine fabrice gmail com>
Date:   Tue Feb 9 21:15:41 2021 +0100

    gdk-pixbuf/gdk-pixbuf-io.c: fix build without gmodule
    
    Fix the following build failure:
    
    ../gdk-pixbuf/gdk-pixbuf-io.c: In function 'gdk_pixbuf_io_init':
    ../gdk-pixbuf/gdk-pixbuf-io.c:681:16: error: implicit declaration of function 
'gdk_pixbuf_get_module_file'; did you mean '_gdk_pixbuf_get_module'? [-Werror=implicit-function-declaration]
      681 |  module_file = gdk_pixbuf_get_module_file ();
          |                ^~~~~~~~~~~~~~~~~~~~~~~~~~
          |                _gdk_pixbuf_get_module
    
    Fixes:
     - http://autobuild.buildroot.org/results/6cd54c497f5d19342ec94ece713547b887e4c02d
    
    Signed-off-by: Fabrice Fontaine <fontaine fabrice gmail com>

 gdk-pixbuf/gdk-pixbuf-io.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gdk-pixbuf/gdk-pixbuf-io.c b/gdk-pixbuf/gdk-pixbuf-io.c
index 40eb920c8..2dc2ea6da 100644
--- a/gdk-pixbuf/gdk-pixbuf-io.c
+++ b/gdk-pixbuf/gdk-pixbuf-io.c
@@ -678,7 +678,9 @@ gdk_pixbuf_io_init (void)
        gboolean ret;
 
        gdk_pixbuf_io_init_builtin ();
+#ifdef USE_GMODULE
        module_file = gdk_pixbuf_get_module_file ();
+#endif
        ret = gdk_pixbuf_io_init_modules (module_file, NULL);
        g_free (module_file);
        return ret;