[network-manager-openswan] configure.ac: Add support for GTK+2

[Javier Jardón <jjardon src gnome org>]

commit d86559fd09f51eef07cccbac8cae8008cf2ce278
Author: Javier Jardón <jjardon gnome org>
Date:   Fri Apr 29 22:40:31 2011 +0100

    configure.ac: Add support for GTK+2

 configure.ac |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6015938..4f08dcd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -66,7 +66,18 @@ AC_SUBST(DBUS_CFLAGS)
 AC_SUBST(DBUS_LIBS)
 
 if test x"$with_gnome" != xno; then
-	PKG_CHECK_MODULES(GTK, gtk+-3.0)
+	AC_ARG_WITH([gtkver],
+	            [AS_HELP_STRING([--with-gtkver], [The major version of GTK+ to build with])],
+	            [with_gtkver="$withval"],[with_gtkver=3])
+	case "${with_gtkver}" in
+	       2) PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.20)
+	          gtkver=2
+	          ;;
+	       *) PKG_CHECK_MODULES(GTK, gtk+-3.0 >= 3.0.0)
+	          gtkver=3
+	          ;;
+	esac
+
 	PKG_CHECK_MODULES(GNOMEKEYRING, gnome-keyring-1)
 fi