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Re: error: '' is already registered with AC_CONFIG_FILES
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From: |
Eric Blake |
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Subject: |
Re: error: '' is already registered with AC_CONFIG_FILES |
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Date: |
Fri, 08 Apr 2011 12:16:58 -0600 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/3.1.9-0.39.b3pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.9 |
On 04/08/2011 12:01 PM, Stephen Henry wrote:
>
> The construct in which this error appears is:
>
> AS_IF([test...],
> [AC_CONFIG_FILES([
> ... list of Makefiles in various directories
> [AS_IF([test...],
> [makefile1.am
> makefile2.am
> makefile3.am])]
> ])
> ])
Try swapping your conditionals. AC_CONFIG_FILES expects literal file
names, but the text "[AS_IF..." is not a literal filename. Meanwhile,
it is safe to call AC_CONFIG_FILES more than once.
AC_CONFIG_FILES([... list of unconditional makefiles])
AS_IF([test...],
[AC_CONFIG_FILES([makefile1.am makefile2.am makefile3.am])])
>
> I have verified that the list does not contain duplicate Makefile entries.
> The configuration script works fine when I remove the [AS_IF] statement, but
> not when it is included. I am fairly confident that the syntax used is
> correct and I have removed all trailing whitespace etc... Also, all of the
> Makefiles have been verified to be in UNIX format.
>
> I am using autoconf 2.68 and m4 1.4.15.
Consider upgrading to m4 1.4.16; there was a nasty strstr() bug in m4
1.4.15 that has been proven to generate broken configure files in some
cases.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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