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| From: | Eric Blake |
| Subject: | Re: _AC_REPLACE_FUNC should invoke AC_CHECK_FUNCS for compatibility |
| Date: | Tue, 21 Sep 2010 16:29:22 -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 09/20/2010 08:46 PM, Wiseman Jun wrote:
The configure.ac file of libiberty includes the following scripts: funcs="asprintf" funcs="$funcs atexit" funcs="$funcs basename" ...... AC_REPLACE_FUNCS($funcs) In the old version of autoconf (maybe before v2.64), AC_REPLACE_FUNCS will invoke AC_CHECK_FUNCS directly. So it expanded to: for ac_func in $funcs do ...... done
Thanks for the report. This is a regression introduced in 2.66, at commit b4d3a51a, when optimizing to reduce forks in the common case of literal function names. I'm working on a patch to restore the for loop in the case of shell indirection.
-- Eric Blake address@hidden +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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