[gnome-builder] meson: redirect stderr to null

[Christian Hergert <chergert src gnome org>]

commit 96aa3ce1faf7a88306727e800177068de22ba860
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jan 21 11:53:29 2019 -0800

    meson: redirect stderr to null

 src/plugins/meson/gbp-meson-build-target-provider.c | 9 ++++++++-
 src/plugins/meson/gbp-meson-test-provider.c         | 3 ++-
 2 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/src/plugins/meson/gbp-meson-build-target-provider.c 
b/src/plugins/meson/gbp-meson-build-target-provider.c
index 409fce010..5879609b1 100644
--- a/src/plugins/meson/gbp-meson-build-target-provider.c
+++ b/src/plugins/meson/gbp-meson-build-target-provider.c
@@ -37,6 +37,7 @@ create_launcher (IdeContext  *context,
 {
   IdePipeline *pipeline;
   IdeBuildManager *build_manager;
+  IdeSubprocessLauncher *ret;
 
   g_assert (IDE_IS_CONTEXT (context));
   g_assert (error == NULL || *error == NULL);
@@ -53,7 +54,13 @@ create_launcher (IdeContext  *context,
       return NULL;
     }
 
-  return ide_pipeline_create_launcher (pipeline, error);
+  ret = ide_pipeline_create_launcher (pipeline, error);
+
+  if (ret != NULL)
+    ide_subprocess_launcher_set_flags (ret,
+                                       ide_subprocess_launcher_get_flags (ret) | 
G_SUBPROCESS_FLAGS_STDERR_SILENCE);
+
+  return g_steal_pointer (&ret);
 }
 
 static void
diff --git a/src/plugins/meson/gbp-meson-test-provider.c b/src/plugins/meson/gbp-meson-test-provider.c
index 5d9af0f9b..b5ccd4957 100644
--- a/src/plugins/meson/gbp-meson-test-provider.c
+++ b/src/plugins/meson/gbp-meson-test-provider.c
@@ -208,7 +208,8 @@ gbp_meson_test_provider_do_reload (GbpMesonTestProvider *self,
   if (NULL == (launcher = ide_pipeline_create_launcher (pipeline, &error)))
     IDE_GOTO (failure);
 
-  ide_subprocess_launcher_set_flags (launcher, G_SUBPROCESS_FLAGS_STDOUT_PIPE);
+  ide_subprocess_launcher_set_flags (launcher,
+                                     G_SUBPROCESS_FLAGS_STDOUT_PIPE | G_SUBPROCESS_FLAGS_STDERR_SILENCE);
 
   builddir = ide_pipeline_get_builddir (pipeline);
   ide_subprocess_launcher_set_cwd (launcher, builddir);