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bogus configure output for strstr
From: |
Eric Blake |
Subject: |
bogus configure output for strstr |
Date: |
Mon, 30 Aug 2010 16:58:20 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100806 Fedora/3.1.2-1.fc13 Mnenhy/0.8.3 Thunderbird/3.1.2 |
I noticed this when testing m4 on FreeBSD:
checking whether strstr works in linear time... Alarm clock
no
That's because conftest ends via a signal in this case, and some shells,
including FreeBSD's /bin/sh, are rather verbose about processes that
died because of a signal rather than a normal exit.
Is it worth trying to silence the spurious "Alarm clock" message by
changing strstr.m4 (and friends with related timeout idioms) to use:
static void quit (int sig) { exit (sig + 128); }
...
signal (SIGALRM, quit);
instead of the current:
signal (SIGALRM, SIG_DFL);
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
- bogus configure output for strstr,
Eric Blake <=