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Re: autoconf-2.68: no AC_LANG_SOURCE call detected in body
From: |
Eric Blake |
Subject: |
Re: autoconf-2.68: no AC_LANG_SOURCE call detected in body |
Date: |
Thu, 23 Sep 2010 07:54:20 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100907 Fedora/3.1.3-1.fc13 Mnenhy/0.8.3 Thunderbird/3.1.3 |
On 09/23/2010 07:52 AM, Eric Blake wrote:
[hit send too soon]
On 09/23/2010 06:56 AM, Ralf Corsepius wrote:
Hi,
I am facing a new issue/regression with autoconf-2.68:
That is not a regression, but a feature. Reread NEWS:
** The macros AC_PREPROC_IFELSE, AC_COMPILE_IFELSE, AC_LINK_IFELSE, and
AC_RUN_IFELSE now warn if the first argument failed to use
AC_LANG_SOURCE or AC_LANG_PROGRAM to generate the conftest file
contents. A new macro AC_LANG_DEFINES_PROVIDED exists if you have
a compelling reason why you cannot use AC_LANG_SOURCE but must
avoid the warning.
AC_COMPILE_IFELSE([
#ifndef FOO
choke me
#endif
])
You should have used:
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#ifndef FOO
choke me
#endif
])
Needs another ]), to match the fact that there is an added ([ from the
added call to AC_LANG_SOURCE.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org