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Re: [build error] configure error when using libneon build with no xml support

From: Peter Samuelson <peter_at_p12n.org>
Date: Wed, 3 Aug 2011 13:09:25 -0500

[Douglas Mencken]
> checking neon library version... 0.29.6
> configure: error: cannot find Neon
> ERROR: './configure' error. Abort.
>
> Al least, "cannot find Neon" is an absolutely WRONG message. Some
> autoconf stuff needs to be fixed.
>
> From config.log:
>
> configure:4944: checking neon library
> configure:5401: checking neon library version
> configure:5408: result: 0.29.6
> configure:5456: powerpc-gnu-linux-uclibc-gcc -o conftest -g -O2 -g
> -O2 -pthread -D_LARGEFILE64_SOURCE -DNE_LFS -I/usr/include/neon
> -D
> _REENTRANT -D_GNU_SOURCE -D_LARGEFILE64_SOURCE conftest.c -lneon >&5
> /tmp/cckaQroR.o: In function `main':
> /root/build-farm/svn-v1.6.17.builddir/conftest.c:16: undefined
> reference to `ne_xml_create'
> collect2: ld returned 1 exit status

Thanks, clarified in r1153599 to read "Cannot find a usable Neon library".

That's what we test: try to use a neon function we need, try to link to
the neon library. If there's a link error, it might be because the
library isn't usable by anyone, or it might be because it doesn't have
the function we need. It isn't easy to tell the difference, actually,
given the range of compilers and linkers and human languages in which
they might report these errors.

Anyway, the semantic difference between "Cannot find neon library" and
"Cannot find neon library that will work for us" is pretty small.

(It's news to me, in fact, that it was even possible to build a recent
version of neon in such a way that it doesn't support the features we
use.)

-- 
Peter Samuelson | org-tld!p12n!peter | http://p12n.org/
Received on 2011-08-03 20:10:04 CEST

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