openal-soft build failure on libc++ SnowLeopard: requires cxa_thread_atexit to support thread_local_storage

[programmingkidx]

openal-soft fails to build. This is what I saw in the log:

:info:build Undefined symbols for architecture x86_64:
:info:build   "___cxa_thread_atexit", referenced from:
:info:build       ALCcontext::deinit() in alc.cpp.o
:info:build       GetContextRef() in alc.cpp.o
:info:build       _alcGetCurrentContext in alc.cpp.o
:info:build       _alcGetThreadContext in alc.cpp.o
:info:build       _alcMakeContextCurrent in alc.cpp.o
:info:build       _alcSetThreadContext in alc.cpp.o
:info:build ld: symbol(s) not found for architecture x86_64
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build make[2]: *** [libopenal.1.20.1.dylib] Error 1

I am using Mac OS 10.6.8.

[kencu (Ken)]

please do these steps LibcxxOnOlderSystems#SnowLeopard to upgrade your toolchain to the state-of-the-art, and in particular this step to fix your current error:

sudo port -v -n upgrade --force --enforce-variants libcxx +emulated_tls

[kencu (Ken)]

I change the issue to where it really exists, which is this 58898

[programmingkidx]

Thank you as always Ken. When I ran "sudo port -v -n upgrade --force --enforce-variants libcxx +emulated_tls", it looked like everything was done but I did see this error:

--->  Cleaning libcxx
--->  Removing work directory for libcxx
Error: Failed to deactivate libcxx: Active version of libcxx is not 5.0.1_4+emulated_tls+universal but 5.0.1_4+universal.
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_registry_portfiles_libcxx-5.0.1_4_e6b71a845b47632b5346ce1f40226b037a4c3335c29ff89a6531bc3db10d7db1-10493/libcxx/main.log for details.
Warning: Failed to execute portfile from registry for libcxx @5.0.1_4+universal
--->  Deactivating libcxx @5.0.1_4+universal
--->  Activating libcxx @5.0.1_4+emulated_tls+universal
x ./

[programmingkidx]

Your instruction worked :)

Openal-soft installed. I suggest having this port try to determine if the correct version of libcxx is being used.

[kencu (Ken)]

I'd prefer to fix the libcxx port to just install the full version by default, but this is proving somewhat complicated to automate for the buildbot.

Downloading and installing a prebuilt fully-functional libcxx binary is an easy way around that issue, but goes against the ZEN of MacPorts.

[ryandesign (Ryan Carsten Schmidt)]

So I'll close this since it's a libcxx bootstrapping problem about which we already have a ticket.