On 08/20/2014 09:47 AM, Thomas Jahns wrote:
> Hello,
>
> I've found and fixed a problem where pgcc -E translates its input to contain
> extra spaces. Since config.guess expects the preprocessor output to be a well
> formed shell variable assignment, I've added some sed code to ensure this.
>
> Please consider the attached patch for inclusion in autoconf.
>
> Regards, Thomas
>
> - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
> + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '/^LIBC/{s/LIBC *= *\(.*\)$/LIBC='"'"'\1'"'"'/;p;}'`
Thanks for the patch. We like to keep to 80-column lines where possible;
also, that sed expression is rather verbose, when compared to the
equivalent:
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null \
| sed -n 's/^LIBC *= */LIBC=/p'`
I'll apply the shortened version in your name, if you agree that it
still works.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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