signal: fix warning in older compilers.

* signal.c (sig_handler): Some older compilers cannot figure
out that stack_lim is not used uninitialized, due to the
conditional logic here, in which two separate code blocks are
guarded by the same condition. Let's initialize the variable,
like the others.

1 files changed, 1 insertions, 1 deletions

diff --git a/signal.c b/signal.c
index ad5c9849..9dac7f44 100644
--- a/signal.c
+++ b/signal.c
@@ -81,7 +81,7 @@ static void sig_handler(int sig)
   int exc = is_cpu_exception(sig);
   int ic = interrupt_count++;
   int in_interrupt = ic > 0;
-  val *stack_lim;
+  val *stack_lim = 0;
 
   if (exc) {
     gc = gc_state(0);