From 9675a70946e07dee97a61ef0408595a6a52b7b21 Mon Sep 17 00:00:00 2001
From: Bart Schaefer <barts@users.sourceforge.net>
Date: Fri, 8 Jun 2001 16:23:53 +0000
Subject: More reliable BROKEN_KILL_ESRCH test.

---
 zshconfig.ac | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'zshconfig.ac')

diff --git a/zshconfig.ac b/zshconfig.ac
index 3aee9fb08..0f4fe14e6 100644
--- a/zshconfig.ac
+++ b/zshconfig.ac
@@ -1377,10 +1377,9 @@ zsh_cv_sys_killesrch,
 #include <errno.h>
 main()
 {
-    int pid, ret;
-    pid=getpid() + 10000;
-    ret=kill(pid, 0);
-    exit(ret<0 && errno!=ESRCH);
+    int pid = (getpid() + 10000) & 0xffffff;
+    while (pid && (kill(pid, 0) == 0 || errno != ESRCH)) pid >>= 1;
+    exit(errno!=ESRCH);
 }
 ],
   zsh_cv_sys_killesrch=yes,
-- 
cgit 1.4.1