Fix for libjingle link errors
What was referencing unixfilesystem? And why did it/does it work on alder/default? I'm loathe to make changes without knowing why...
Here is the link error: ld: warning: could not create compact unwind for _ffi_call_unix64: does not use RBP or RSP based frame Undefined symbols for architecture x86_64: "vtable for talk_base::UnixFilesystem", referenced from: talk_base::UnixFilesystem::UnixFilesystem()in fileutils.o NOTE: a missing vtable usually means the first non-inline virtual member function has no definition. "cricket::DeviceManagerFactory::Create()", referenced from: cricket::ChannelManager::ChannelManager(talk_base::Thread*)in channelmanager.o cricket::ChannelManager::ChannelManager(talk_base::Thread*)in channelmanager.o What makes you think it works on alder/default? This is alder/default I'm having the problem on. Note that the included files differ between Mac and Linux here.
Because the builders have no trouble building alder/default. That doesn't mean that it isn't wrong and should be fixed, but I just want to understand *why* it's different - XCode version? OS version? Extra stuff installed? Different build options? I'll note that probably the os_posix -> os_linux change I made in libjingle (line 412) is probably the cause of the problem. I changed it because it was breaking win32, and I can't test mac easily.