[gnome-control-center/wip/libgnome-control-center] Add a configure option to enable building the example panel

[Thomas Wood <thos src gnome org>]

commit aaba6c30301c4fbf45be3901503f53f1fe03491d
Author: Thomas Wood <thomas wood intel com>
Date:   Wed May 19 17:51:33 2010 +0100

    Add a configure option to enable building the example panel
    
    Do not build the example panel by default, but allow it to be enabled
    through a configure option.

 Makefile.am  |    8 ++++++--
 configure.ac |   13 +++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index d465573..7bb045f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,11 +1,15 @@
 SUBDIRS = po libwindow-settings libgnome-control-center shell capplets \
-	  font-viewer help docs examples
-DIST_SUBDIRS = po libwindow-settings capplets font-viewer help shell typing-break
+	  font-viewer help docs
+DIST_SUBDIRS = po libwindow-settings capplets font-viewer help shell typing-break examples
 
 if HAVE_TYPING_BREAK
 SUBDIRS += typing-break
 endif
 
+if BUILD_EXAMPLES
+SUBDIRS += examples
+endif
+
 schemasdir   = @GCONF_SCHEMA_FILE_DIR@
 schemas_in_files = gnome-control-center.schemas.in
 schemas_DATA = $(schemas_in_files:.schemas.in=.schemas)
diff --git a/configure.ac b/configure.ac
index 8fa7da3..fab6a3a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -295,6 +295,19 @@ AC_SUBST(PANEL_LIBS)
 PANEL_LDFLAGS="-export_dynamic -avoid-version -module -no-undefined -export-symbols-regex '^g_io_module_(load|unload)'"
 AC_SUBST(PANEL_LDFLAGS)
 
+dnl ==============================================
+dnl Example Panel
+dnl ==============================================
+
+AC_MSG_CHECKING([whether to build the example panel])
+AC_ARG_ENABLE([examples],
+   AC_HELP_STRING([--enable-examples],
+                  [enable the examples]),,
+   [enable_examples=no])
+AC_MSG_RESULT([$enable_examples])
+
+AM_CONDITIONAL(BUILD_EXAMPLES, test "x$enable_examples" = "xyes")
+
 
 dnl =======================================
 dnl Update Mime Database