[cairo] configure script does not find pthreads when librt.a is present

[Eric Gallager]

I was one of the users originally experiencing the problem. Here are my config.log's:
http://pastebin.com/WMedpvgG
http://pastebin.com/hM2eGNJM
(there are 2 because I was using the universal variants)
Moving aside my /usr/local solved my problem, so cairo now builds properly for me.

On Fri, Sep 21, 2012 at 4:16 AM, Ryan Schmidt
<cairo-2012b at ryandesign.com> wrote:
> I'm forwarding to you a bug report from a MacPorts user. There is apparently a problem with the cairo configure script where it will incorrectly find a /usr/local/lib/librt.a and try to find symbols in it, which it should be finding in libsystem.dylib instead. Here is our bug report about this:

The problem seems to be some kind of invalid environment for the
compiler (currently the pthread check is very paranoid, so it will
fail even upon warnings).
The issue might be related to https://bugs.freedesktop.org/show_bug.cgi?id=30910
The config.log file should contain some more details about the failure.

Can you check if it builds using this guide
http://cairographics.org/end_to_end_build_for_mac_os_x/ ?

>
> https://trac.macports.org/ticket/31275#comment:7
>
> This problem is outside my area of expertise so I don't know what to do other than report it to you. If you need more details it might be best to contact the user who reported the ticket.

The mail is hidden, so this is not so easy to do.

>
>
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