[grilo-plugins] meson: Search lua-factory sources to correct dir

[Victor Toso <victortoso src gnome org>]

commit f88ec4080ffa14384a325dcb9f8d7e2c6c220565
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Tue Jul 17 22:17:52 2018 +0000

    meson: Search lua-factory sources to correct dir
    
    Fixes problem partially fixed in commit
    e3196693258c2935023f482592ff16de6f6f56ec.

 src/lua-factory/meson.build         | 2 +-
 src/lua-factory/sources/meson.build | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/lua-factory/meson.build b/src/lua-factory/meson.build
index 932462b..b6e8a89 100644
--- a/src/lua-factory/meson.build
+++ b/src/lua-factory/meson.build
@@ -45,7 +45,7 @@ lua_library_sources += [ htmlentity_c ]
 configure_file(output: 'config.h',
     configuration: cdata)
 
-luafactorydir = join_paths(datadir, 'grilo-plugins', 'grl-lua-factory')
+luafactorydir = join_paths('grilo-plugins', 'grl-lua-factory')
 
 shared_library('grlluafactory',
     sources: lua_factory_sources + lua_factory_resources + lua_library_sources,
diff --git a/src/lua-factory/sources/meson.build b/src/lua-factory/sources/meson.build
index 6d66d4e..3c09db0 100644
--- a/src/lua-factory/sources/meson.build
+++ b/src/lua-factory/sources/meson.build
@@ -33,7 +33,7 @@ resources = [
 foreach s: sources
     f = s + '.lua'
     install_data(f,
-        install_dir: luafactorydir)
+        install_dir: join_paths(datadir, luafactorydir))
 endforeach
 
 foreach r: resources
@@ -43,7 +43,7 @@ foreach r: resources
         output: output,
         input: input,
         install: true,
-        install_dir: luafactorydir,
+        install_dir: join_paths(datadir, luafactorydir),
         command: [glib_compile_resources,
             '--sourcedir', meson.current_source_dir(),
             '--target', '@OUTPUT@',