[gdk-pixbuf] meson: Raise minimum glib version to 2.56.0

[Emmanuele Bassi <ebassi src gnome org>]

commit 803a4311fa48021d07f827f0fcfcf657673fe14d
Author: Alan Coopersmith <alan coopersmith oracle com>
Date:   Sun Sep 8 18:01:38 2019 -0700

    meson: Raise minimum glib version to 2.56.0
    
    g_file_load_bytes(), used in tests/pixbuf-gif.c, was introduced in 2.56.0
    
    Signed-off-by: Alan Coopersmith <alan coopersmith oracle com>

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index e74ad3792..2a71f81d6 100644
--- a/meson.build
+++ b/meson.build
@@ -56,7 +56,7 @@ gdk_pixbuf_libexecdir = join_paths(gdk_pixbuf_prefix, get_option('libexecdir'))
 gdk_pixbuf_loaderdir = join_paths(gdk_pixbuf_libdir, 
'gdk-pixbuf-@0@/@1@/loaders'.format(gdk_pixbuf_api_version, gdk_pixbuf_binary_version))
 
 # Dependencies
-glib_req_version = '>= 2.38.0'
+glib_req_version = '>= 2.56.0'
 glib_dep = dependency('glib-2.0', version: glib_req_version,
                       fallback : ['glib', 'libglib_dep'])
 gobject_dep = dependency('gobject-2.0', version: glib_req_version,