[gspell] build: fix required GTK+ version

[Sébastien Wilmet <swilmet src gnome org>]

commit 7d2802238b12b536a8107f35186cf4b64d6d5927
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Mar 7 20:10:23 2016 +0100

    build: fix required GTK+ version

 README       |    2 +-
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index b1c4216..5eeb9fb 100644
--- a/README
+++ b/README
@@ -46,7 +46,7 @@ Dependencies
 ------------
 
 * GLib >= 2.44
-* GTK+ >= 3.16
+* GTK+ >= 3.19.11
 * Enchant >= 1.6.0
 * iso-codes
 
diff --git a/configure.ac b/configure.ac
index 38598d0..90f19e3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,7 +36,7 @@ AC_SUBST(GSPELL_LT_VERSION)
 enchant_req=1.6.0
 iso_codes_req=0.35
 glib_req=2.44
-gtk_req=3.16
+gtk_req=3.19.11
 
 AC_CONFIG_SRCDIR([gspell/gspell-checker.c])
 AC_CONFIG_HEADER([config.h])