[gnome-builder] pipeline: set xterm-256color with PTY

[Christian Hergert <chergert src gnome org>]

commit fa16cd619726b21b7590061b7467a9fda5abaa7a
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jan 23 02:39:03 2018 -0800

    pipeline: set xterm-256color with PTY
    
    If we are attaching a PTY, we should set the $TERM for the environment.

 src/libide/buildsystem/ide-build-pipeline.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/libide/buildsystem/ide-build-pipeline.c b/src/libide/buildsystem/ide-build-pipeline.c
index 2d59396a0..dfdd05ca3 100644
--- a/src/libide/buildsystem/ide-build-pipeline.c
+++ b/src/libide/buildsystem/ide-build-pipeline.c
@@ -2529,6 +2529,9 @@ ide_build_pipeline_attach_pty (IdeBuildPipeline      *self,
   ide_subprocess_launcher_take_stdin_fd (launcher, dup (self->pty_slave));
   ide_subprocess_launcher_take_stdout_fd (launcher, dup (self->pty_slave));
   ide_subprocess_launcher_take_stderr_fd (launcher, dup (self->pty_slave));
+
+  /* Ensure a terminal type is set */
+  ide_subprocess_launcher_setenv (launcher, "TERM", "xterm-256color", FALSE);
 }
 
 /**