Migrate to up-to-date Glib thread API

[Sergey "Shnatsel" Davidoff]

Many elementary apps fail to build in Ubuntu 12.04 "Precise" because they use deprecated Glib thread API. All affected apps must be converted to the new API. See https://lists.launchpad.net/elementary-dev-community/msg00138.html for more info.

[Avi Romanoff (aroman)]

Are you sure this is affecting Lingo? I don't believe Lingo uses threading at all (at least not directly) -- it uses an asynchronous pattern, rather than a threaded one to do background work.

[Sergey "Shnatsel" Davidoff (shnatsel)]

Yes, I'm sure:
CMakeFiles/lingo.dir/src/lingo-app.c.o: In function `main':
/build/buildd/lingo-0.8/src/lingo-app.vala:25: undefined reference to `g_thread_init'
https://launchpadlibrarian.net/88873980/buildlog_ubuntu-precise-amd64.lingo_0.8-0~r117%2Bpkg5~precise1_FAILEDTOBUILD.txt.gz

[Cris Dywan (kalikiana)]

The wording in the report may be a bit misleading. g_thread_init has become a no-op and GIO automatically uses threads. If you just added g_thread_init for GIO, libSoup, GStreamer or WebKitGTK+ you are also affected.

[Sergey "Shnatsel" Davidoff (shnatsel)]

Unmarking Lingo because it doesn't use threading directly and devs probably can't do anything about it

[Sergey "Shnatsel" Davidoff (shnatsel)]

Turned out to be invalid because in Vala you never use Glib threading API directly.

[Sergey "Shnatsel" Davidoff (shnatsel)]

xapantu has fixed build issues, so I won't even open a separate bug for them.