[gspell] Use Enchant 2

[Sébastien Wilmet <swilmet src gnome org>]

commit 5b50a8476da5acd90ce3e31af847795b96b7e9e2
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.
    
    Enchant 2 >= 2.1.3 is now parallel-installable with Enchant 1, so it'll
    normally not cause problems for Linux distribution packagers to ship
    Enchant 2 and the next version of gspell. See:
    https://github.com/AbiWord/enchant/issues/162
    
    Strictly speaking, this is an API break for gspell as well, since there
    is the gspell_checker_get_enchant_dict() function that exposes Enchant
    in the public API of gspell. This function has been added in the
    previous development cycle for gnome-builder needs, but gnome-builder
    doesn't use yet this function. I've asked on IRC to the gnome-builder
    developers if it's fine to switch to Enchant 2, and they said that it is
    not a problem. So I prefer to follow a pragmatic approach, in practice
    switching gspell to Enchant 2 will normally not cause problems for
    applications, and that way the apps will automatically benefit from a
    newer version of Enchant (especially gedit which is currently
    unmaintained, so it's unlikely that gedit would have switched to
    gspell-2).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790994

 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