[gedit] build: config.h: do not use libdir and datadir variables

[Sébastien Wilmet <swilmet src gnome org>]

commit 43292685315cd10767f56dd8d54548b648a6c69d
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Dec 5 15:28:48 2019 +0100

    build: config.h: do not use libdir and datadir variables
    
    From my point of view all these variables make things less clear.
    When reading "get_option('prefix')" etc, we know what it really is.

 meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index e9d1c1561..f2047a13e 100644
--- a/meson.build
+++ b/meson.build
@@ -88,8 +88,8 @@ endif
 config_h = configuration_data()
 config_h.set_quoted('PACKAGE_STRING', package_string)
 config_h.set_quoted('GETTEXT_PACKAGE', meson.project_name())
-config_h.set_quoted('LIBDIR', libdir)
-config_h.set_quoted('DATADIR', datadir)
+config_h.set_quoted('LIBDIR', join_paths(get_option('prefix'), get_option('libdir')))
+config_h.set_quoted('DATADIR', join_paths(get_option('prefix'), get_option('datadir')))
 config_h.set_quoted('VERSION', meson.project_version())
 
 version_array = meson.project_version().split('.')