call: Harden against compiler overoptimization.

A compiler won't know that the interrupted variable can be changed behind
its back in a signal handler so it might do clever overoptimizations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/call/call.c b/call/call.c
index f7a7770..2f606bd 100644
--- a/call/call.c
+++ b/call/call.c
@@ -79,7 +79,7 @@ static char *mycall;
 
 static int stdin_is_tty = 1;
 
-int interrupted = FALSE;
+volatile int interrupted = FALSE;
 int paclen;
 int fd;