[gnome-weather] meson: Fix still-used dirs removed from meson

[Christopher Davis <christopherdavis src gnome org>]

commit db1f94c8fd4a5517d38601bdbe8bb5a49dfaca82
Author: Christopher Davis <brainblasted disroot org>
Date:   Wed Feb 13 20:32:45 2019 -0500

    meson: Fix still-used dirs removed from meson
    
    This commit adds those directories back

 meson.build     | 1 +
 src/meson.build | 1 +
 2 files changed, 2 insertions(+)
---
diff --git a/meson.build b/meson.build
index 26a91d1..263c13b 100644
--- a/meson.build
+++ b/meson.build
@@ -20,6 +20,7 @@ dependency('gweather-3.0', version: '>= 3.28')
 
 env = environment()
 
+EXTENSION_DIR = join_paths(get_option('prefix'), get_option('libdir'), meson.project_name())
 DATA_DIR = join_paths(get_option('prefix'), get_option('datadir'), application_id)
 BIN_DIR = join_paths(get_option('prefix'), get_option('bindir'))
 
diff --git a/src/meson.build b/src/meson.build
index fadd2f4..8d64aa8 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -2,6 +2,7 @@ source_conf = configuration_data()
 source_conf.set('GJS', find_program('gjs').path())
 source_conf.set('DATA_DIR', DATA_DIR)
 source_conf.set('PACKAGE_VERSION', meson.project_version())
+source_conf.set('libdir', EXTENSION_DIR)
 source_conf.set('prefix', prefix)
 
 application = configure_file(