[gtk/big-glyphs] testsuite: Pass --output for gsk tests

[Matthias Clasen <matthiasc src gnome org>]

commit 1044d71ae9f6121350ab239121afd84749056b4e
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 3 00:51:09 2019 +0000

    testsuite: Pass --output for gsk tests
    
    We want to keep the output from ci runs.

 testsuite/gsk/meson.build | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index a3563f11b4..dbbfa99007 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -71,7 +71,8 @@ foreach renderer : renderers
   foreach test : compare_render_tests
     if (renderer[1] == '' or not test.contains(renderer[1]))
       test(renderer[0] + ' ' + test, compare_render,
-           args: [join_paths(meson.current_source_dir(), 'compare', test + '.node'),
+           args: ['--output', join_paths(meson.current_build_dir(), 'output', renderer[0]),
+                  join_paths(meson.current_source_dir(), 'compare', test + '.node'),
                   join_paths(meson.current_source_dir(), 'compare', test + '.png')],
            env: [ 'GIO_USE_VOLUME_MONITOR=unix',
                   'GSETTINGS_BACKEND=memory',