[glom] Avoid autoconf warning about datarootdir.

[Murray Cumming <murrayc src gnome org>]

commit dc9f2a6bf8c0f5c397ae57a5082d8cb010f86855
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Jul 15 10:45:14 2011 +0200

    Avoid autoconf warning about datarootdir.
    
    * glom/libglom/glom.pc.in: Set datarootdir to avoid this warning:
    config.status: WARNING:  'glom/libglom/glom.pc.in' seems to ignore the --datarootdir setting
      as suggested here:
      http://www.gnu.org/software/hello/manual/autoconf/Changed-Directory-Variables.html

 ChangeLog               |    9 +++++++++
 glom/libglom/glom.pc.in |    1 +
 2 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index dc373c9..9d11d34 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2011-07-15  Murray Cumming  <murrayc murrayc com>
 
+	Avoid autoconf warning about datarootdir.
+
+	* glom/libglom/glom.pc.in: Set datarootdir to avoid this warning:
+	config.status: WARNING:  'glom/libglom/glom.pc.in' seems to ignore the --datarootdir setting
+  as suggested here:
+  http://www.gnu.org/software/hello/manual/autoconf/Changed-Directory-Variables.html
+
+2011-07-15  Murray Cumming  <murrayc murrayc com>
+
 	ImageGlom: Do not try to get a thumbnail for non-image, non-evince types.
 	
 	* glom/utility_widgets/imageglom.cc: Just use g_content_type_get_icon(),
diff --git a/glom/libglom/glom.pc.in b/glom/libglom/glom.pc.in
index df9c699..070750c 100644
--- a/glom/libglom/glom.pc.in
+++ b/glom/libglom/glom.pc.in
@@ -3,6 +3,7 @@ exec_prefix= exec_prefix@
 libdir= libdir@
 includedir= includedir@
 PACKAGE_TARNAME= PACKAGE_TARNAME@
+datarootdir= datarootdir@
 exampledir= docdir@/examples
 
 Name: libglom