[gnome-builder] pipeline: only clear intercept once

[Christian Hergert <chergert src gnome org>]

commit c1b9629c6240f9734c27e59a719f1fae1d24ce5a
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jan 23 02:49:06 2018 -0800

    pipeline: only clear intercept once
    
    Fixes a warning caused by PTY_IS_INTERCEPT() being called a second time.

 src/libide/buildsystem/ide-build-pipeline.c | 4 +++-
 src/libide/util/ptyintercept.c              | 2 --
 src/libide/util/ptyintercept.h              | 2 ++
 3 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/src/libide/buildsystem/ide-build-pipeline.c b/src/libide/buildsystem/ide-build-pipeline.c
index 9fa4b063f..77d299740 100644
--- a/src/libide/buildsystem/ide-build-pipeline.c
+++ b/src/libide/buildsystem/ide-build-pipeline.c
@@ -1106,9 +1106,11 @@ ide_build_pipeline_dispose (GObject *object)
   g_clear_pointer (&self->message, g_free);
 
   g_clear_object (&self->pty);
-  pty_intercept_clear (&self->intercept);
   fd = pty_fd_steal (&self->pty_slave);
 
+  if (PTY_IS_INTERCEPT (&self->intercept))
+    pty_intercept_clear (&self->intercept);
+
   G_OBJECT_CLASS (ide_build_pipeline_parent_class)->dispose (object);
 
   IDE_EXIT;
diff --git a/src/libide/util/ptyintercept.c b/src/libide/util/ptyintercept.c
index a85886cdd..ad92b8141 100644
--- a/src/libide/util/ptyintercept.c
+++ b/src/libide/util/ptyintercept.c
@@ -39,8 +39,6 @@
  */
 #define CHANNEL_BUFFER_SIZE (4096 * 4)
 
-#define PTY_INTERCEPT_MAGIC (0x81723647)
-#define PTY_IS_INTERCEPT(s) ((s) != NULL && (s)->magic == PTY_INTERCEPT_MAGIC)
 
 static void     _pty_intercept_side_close (pty_intercept_side_t *side);
 static gboolean _pty_intercept_in_cb      (GIOChannel           *channel,
diff --git a/src/libide/util/ptyintercept.h b/src/libide/util/ptyintercept.h
index 0f41e5dec..b4637cf9e 100644
--- a/src/libide/util/ptyintercept.h
+++ b/src/libide/util/ptyintercept.h
@@ -24,6 +24,8 @@
 G_BEGIN_DECLS
 
 #define PTY_FD_INVALID (-1)
+#define PTY_INTERCEPT_MAGIC (0x81723647)
+#define PTY_IS_INTERCEPT(s) ((s) != NULL && (s)->magic == PTY_INTERCEPT_MAGIC)
 
 typedef int                               pty_fd_t;
 typedef struct _pty_intercept_t           pty_intercept_t;