From: Ivan Maidanski <ivmai@mail.ru>
Date: Thu, 23 Mar 2017 00:16:12 +0000 (+0300)
Subject: Fix tools/setjmp_t hang (OS X)
X-Git-Tag: v8.0.0~826
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=094ca53744a0b8970f0b30be35cdd0477b7cdfea;p=gc

Fix tools/setjmp_t hang (OS X)

* tools/setjmp_t.c (main): Declare "y" static variable as volatile (to
prevent reordering/optimization of y++).
---

diff --git a/tools/setjmp_t.c b/tools/setjmp_t.c
index 987599ed..b3bb86da 100644
--- a/tools/setjmp_t.c
+++ b/tools/setjmp_t.c
@@ -82,7 +82,7 @@ int main(void)
     unsigned ps = GETPAGESIZE();
     jmp_buf b;
     register int x = (int)strlen("a");  /* 1, slightly disguised */
-    static int y = 0;
+    static volatile int y = 0;
 
     sp = (word)(&sp);
     printf("This appears to be a %s running %s\n", MACH_TYPE, OS_TYPE);