[glib] Bump gtk-doc dependency to 1.15

[Ryan Lortie <ryanl src gnome org>]

commit 90285b0643d23059bdf28aff4afd337f91a556a6
Author: Ryan Lortie <desrt desrt ca>
Date:   Mon Jul 12 15:30:26 2010 -0400

    Bump gtk-doc dependency to 1.15
    
    Use the multiple source-directory support contained therein.

 configure.in                    |    2 +-
 docs/reference/glib/Makefile.am |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.in b/configure.in
index 9728134..bc4e27b 100644
--- a/configure.in
+++ b/configure.in
@@ -2756,7 +2756,7 @@ dnl **************************
 dnl *** Checks for gtk-doc ***
 dnl **************************
 
-GTK_DOC_CHECK([1.11])
+GTK_DOC_CHECK([1.15])
 
 AC_ARG_ENABLE(man,
               [AC_HELP_STRING([--enable-man],
diff --git a/docs/reference/glib/Makefile.am b/docs/reference/glib/Makefile.am
index 553cbde..a363584 100644
--- a/docs/reference/glib/Makefile.am
+++ b/docs/reference/glib/Makefile.am
@@ -10,7 +10,7 @@ DOC_MODULE=glib
 DOC_MAIN_SGML_FILE=glib-docs.sgml
 
 # The directory containing the source code. Relative to $(srcdir)
-DOC_SOURCE_DIR=../../..
+DOC_SOURCE_DIR=../../../glib ../../../gmodule
 
 # Extra options to supply to gtkdoc-scan
 SCAN_OPTIONS=--deprecated-guards="G_DISABLE_DEPRECATED" --ignore-decorators="GLIB_VAR"