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Patch adapted from
https://www.sourceware.org/ml/gdb-patches/2012-08/msg00439.html
Without it, spawning a terminal 'vim' from gdb 'edit' cmd, makes
all gdb grazy.
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index 7ea0fec..be5455c 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -831,11 +831,12 @@ void
tui_initialize_win (void)
{
#ifdef SIGWINCH
-#ifdef HAVE_SIGACTION
+#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
struct sigaction old_winch;
- memset (&old_winch, 0, sizeof (old_winch));
+ sigemptyset (&old_winch.sa_mask);
old_winch.sa_handler = &tui_sigwinch_handler;
+ old_winch.sa_flags = SA_RESTART;
sigaction (SIGWINCH, &old_winch, NULL);
#else
signal (SIGWINCH, &tui_sigwinch_handler);
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