cairo: No mutex implementation found. Cairo will not work with multiple threads.

[Behinder (behinder)]

Cairo fail to upgrade on Snow Leopard 10.6.8.

[Behinder (behinder)]

cairo log during upgrade

[ryandesign (Ryan Carsten Schmidt)]

Interesting:

cairo-mutex-impl-private.h:262:3: error: #error "XXX: No mutex implementation found.  Cairo will not work with multiple threads.  Define CAIRO_NO_MUTEX to 1 to acknowledge and accept this limitation and compile cairo without thread-safety support."

I have not seen that before. I'll have to investigate.

[cooljeanius (Eric Gallager)]

my version of main.log

[cooljeanius (Eric Gallager)]

I'd just like to add that I'm having this problem, too.

My info:

Mac OS X 10.6.8 Snow Leopard

MacPorts 2.1.2

port command I used:

$ su
$ port -udfc upgrade pango

(output from this command is in main.2.log, which I attached)

My pango is installed with variants +quartz+universal+x11

My cairo is installed with variants +quartz+universal+x11+x11_xcb

[cooljeanius (Eric Gallager)]

Cc Me!

[jmroot (Joshua Root)]

The configure script is failing to detect pthreads:

:info:configure checking for cairo's pthread feature...
:info:configure checking whether cairo's pthread feature could be enabled... no (can't link with -lpthread or -pthread)

[jmroot (Joshua Root)]

On IRC, egall said that moving /usr/local aside fixed the problem.

[cooljeanius (Eric Gallager)]

To further expand on that, the configure script was picking up a librt.a that was in my /usr/local/lib by accident, when the symbol it was looking for should have been in libsystem.dylib instead. The configure script should be fixed to look for the symbol in the correct place.

[ryandesign (Ryan Carsten Schmidt)]

That's up to the developers of cairo to fix. I've ​a message to the ​cairo mailing list about the problem. If you have further information to add about this problem you should send it to the cairo list as well.

[ryandesign (Ryan Carsten Schmidt)]

The developers have responded to my message and have some steps they'd like you to try. It might make things easier if you subscribed to the cairo mailing list to have the conversation with them directly.