[gmime] Fied configure.ac to require glib 2.32 for g_mutex_init

[Jeffrey Stedfast <fejj src gnome org>]

commit 0ac288d06a1145d297c717580ceac6d052e58fe6
Author: Jeffrey Stedfast <jestedfa microsoft com>
Date:   Tue Sep 27 10:04:07 2016 -0400

    Fied configure.ac to require glib 2.32 for g_mutex_init

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 282500c..e0fef60 100644
--- a/configure.ac
+++ b/configure.ac
@@ -246,8 +246,8 @@ if test "x$enable_cryptography" = "xyes"; then
 fi
 
 
-dnl We need at *least* glib 2.16.0 for GIO and 2.18.0 for g_set_error_literal
-AM_PATH_GLIB_2_0(2.18.0, ,
+dnl We need at *least* glib 2.16.0 for GIO, 2.18.0 for g_set_error_literal, and 2.32.0 for g_mutex_init
+AM_PATH_GLIB_2_0(2.32.0, ,
                 AC_MSG_ERROR(Cannot find GLIB: Is pkg-config in your path?),
                 gobject gmodule gthread gio)