[gspell/wip/enchant2] Use Enchant 2

[Sébastien Wilmet <swilmet src gnome org>]

commit 983d2496fbc487236eec8d1026d19e296a9730b8
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Nov 24 15:34:52 2017 +0100

    Use Enchant 2
    
    Enchant has a new maintainer and the project is again under development.
    
    There has been some API/ABI breaks in Enchant 2, but they don't affect
    gspell.

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2e415c4..5e893db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ GSPELL_API_VERSION=1
 AC_SUBST(GSPELL_API_VERSION)
 
 # Dependencies
-enchant_req=1.6.0
+enchant_req=2.1.3
 glib_req=2.44
 gtk_req=3.20
 
@@ -90,7 +90,7 @@ AX_COMPILER_FLAGS([WARN_CFLAGS], [WARN_LDFLAGS], [yes])
 # Dynamic linking dependencies
 AX_REQUIRE_DEFINED([AX_PKG_CHECK_MODULES])
 AX_PKG_CHECK_MODULES([DEP],
-                    [glib-2.0 >= $glib_req  gtk+-3.0 >= $gtk_req  enchant >= $enchant_req],
+                    [glib-2.0 >= $glib_req  gtk+-3.0 >= $gtk_req  enchant-2 >= $enchant_req],
                     [])
 
 # iso-codes