[gtksourceview/wip/chergert/gsv-gtk4] build: bump to GTK 4 versions

[Christian Hergert <chergert src gnome org>]

commit 6ce9b7b7a82279e98b248ee46df4a70fe92c4025
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 8 15:34:56 2020 -0800

    build: bump to GTK 4 versions
    
    This breaks compilation, but is the first step towards getting
    our port to GTK 4 landed.

 meson.build | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/meson.build b/meson.build
index eae86c56..887298af 100644
--- a/meson.build
+++ b/meson.build
@@ -65,7 +65,7 @@ build_gtk_doc = get_option('gtk_doc')
 cc = meson.get_compiler('c')
 
 glib_req_version = '2.48'
-gtk_req_version = '3.22'
+gtk_req_version = '3.96'
 
 libm_dep = cc.find_library('m', required: false)
 
@@ -79,11 +79,11 @@ fribidi_req = '>= 0.19.7'
 glib_dep = dependency('glib-2.0', version: glib_req)
 gobject_dep = dependency('gobject-2.0', version: glib_req)
 gio_dep = dependency('gio-2.0', version: glib_req)
-gtk_dep = dependency('gtk+-3.0', version: gtk_req)
+gtk_dep = dependency('gtk4', version: gtk_req)
 libxml_dep = dependency('libxml-2.0', version: libxml_req, required: cc.get_id() != 'msvc')
 fribidi_dep = dependency('fribidi', version: fribidi_req)
 
-gtk_quartz_dep = dependency('gtk+-quartz-3.0', version: gtk_doc_req, required: false)
+gtk_quartz_dep = dependency('gtk4-quartz', version: gtk_doc_req, required: false)
 
 if generate_gir
   introspection_dep = dependency('gobject-introspection-1.0', version: introspection_req)
@@ -118,9 +118,10 @@ glib_version_arr = glib_req_version.split('.')
 glib_major_version = glib_version_arr[0]
 glib_minor_version = glib_version_arr[1]
 
+# Override until GTK 4 is released
 gtk_version_arr = gtk_req_version.split('.')
-gtk_major_version = gtk_version_arr[0]
-gtk_minor_version = gtk_version_arr[1]
+gtk_major_version = '4' # gtk_version_arr[0]
+gtk_minor_version = '0' # gtk_version_arr[1]
 
 # Configurations
 add_project_arguments([