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Re: debbugs, and a FAQ, for Autotools
From: |
Eric Blake |
Subject: |
Re: debbugs, and a FAQ, for Autotools |
Date: |
Mon, 21 Feb 2011 07:09:31 -0700 |
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On 02/19/2011 06:50 PM, Russell Shaw wrote:
> Looking through a ./configure script, i see lots of things being done
> with file descriptors >&5 and >&6. What is going on here? eg:
The example only showed use of >&5.
> eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
> $as_echo "$ac_try_echo"; } >&5
> (eval "$ac_compile") 2>conftest.err
> ac_status=$?
> if test -s conftest.err; then
> grep -v '^ *+' conftest.err >conftest.er1
> cat conftest.er1 >&5
> mv -f conftest.er1 conftest.err
> fi
> $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
FD 5 is config.log. That is, everything that redirects output to 5 is
setting up more verbose output that will end up in the log file,
compared to the shorter output that appears on just stdout.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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- debbugs, and a FAQ, for Autotools, Ralf Wildenhues, 2011/02/13
- Re: debbugs, and a FAQ, for Autotools, Ralf Wildenhues, 2011/02/19
- Re: debbugs, and a FAQ, for Autotools, Ralf Hemmecke, 2011/02/22
- Re: debbugs, and a FAQ, for Autotools, Paul Smith, 2011/02/22
- Re: debbugs, and a FAQ, for Autotools, Ralf Hemmecke, 2011/02/22
- Re: debbugs, and a FAQ, for Autotools, Miles Bader, 2011/02/22
- Re: debbugs, and a FAQ, for Autotools, Ralf Wildenhues, 2011/02/23
- Re: debbugs, and a FAQ, for Autotools, Ralf Hemmecke, 2011/02/23
- Re: debbugs, and a FAQ, for Autotools, Miles Bader, 2011/02/24
- Re: debbugs, and a FAQ, for Autotools, Paul Smith, 2011/02/23
- Re: debbugs, and a FAQ, for Autotools, Ralf Wildenhues, 2011/02/23