[gnome-latex] build: update list of dependencies

[Sébastien Wilmet <swilmet src gnome org>]

commit 876866ce28163f9835fecf949211f7a78053d4b4
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Mar 25 14:18:53 2018 +0200

    build: update list of dependencies
    
    - I prefer to specify stable versions.
    - Do not mention gettext, it's already a dependency of GLib.
    - Forgot to add dconf to the README.

 README       | 4 ++--
 configure.ac | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/README b/README
index 248277c..d1de5f6 100644
--- a/README
+++ b/README
@@ -20,11 +20,11 @@ Dependencies
 
 * GLib >= 2.50
 * GTK+ >= 3.22
-* GtkSourceView >= 3.99.7
+* GtkSourceView >= 4.0
 * Tepl >= 3.99.1 - https://wiki.gnome.org/Projects/Tepl
 * gspell >= 1.0
 * gee-0.8 >= 0.10
-* gettext
+* dconf
 * gsettings-desktop-schemas
 * Latexmk >= 4.31 (optional, but strongly recommended)
 
diff --git a/configure.ac b/configure.ac
index 666593d..9de1cc2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ LT_INIT
 # Update also the --target-glib option in src/Makefile.am.
 GLIB_REQUIRED_VERSION="2.50"
 GTK_REQUIRED_VERSION="3.22"
-GTKSOURCEVIEW_REQUIRED_VERSION="3.99.7"
+GTKSOURCEVIEW_REQUIRED_VERSION="4.0"
 TEPL_REQUIRED_VERSION="3.99.1"
 GSPELL_REQUIRED_VERSION="1.0"
 VALA_REQUIRED_VERSION="0.34"