[vinagre] Bump pkg-config requirement to 0.24

[David King <davidk src gnome org>]

commit 25eab85b7cd78f832536778e51125fc326467dc2
Author: David King <davidk openismus com>
Date:   Sat Dec 3 09:24:41 2011 +0100

    Bump pkg-config requirement to 0.24
    
    Version 0.24 or greater of pkg-config is required in order to avoid the
    duplicate AC_SUBST macro calls for PKG_CHECK_MODULES substitutions.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c54d117..941a420 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AS_CASE([$host_os],
   [gio_os=gio-unix-2.0; windows_host=no])
 AC_MSG_RESULT([$windows_host])
 
-PKG_PROG_PKG_CONFIG([0.16])
+PKG_PROG_PKG_CONFIG([0.24])
 
 AC_PROG_SED