How to replace libpthread correctly on 7.0?
LukeD at pobox.com
Sun Mar 30 14:45:32 PDT 2008
This weekend I upgraded a desktop system from 6.2 to 7-STABLE using
source. I removed and rebuilt all my ports using the ports system, and so
far I haven't noticed any problems with them.
When I attempted to rebuild some software outside the ports system, I ran
into problems. I like to use the Code::Blocks IDE. It's in the
FreeBSD ports system, but it's lagging about three years behind what's
current, so I've been tracking the current code from the project's
subversion system. It was working on FreeBSD 6.2.
When I attempted to rebuild Code::Blocks, the build failed with an error
relating to libpthread.so.2. I didn't get rid of old libraries when I
upgraded to 7, so I still had this old libpthread.so.2 that hadn't been
rebuilt. I know. Bad. I searched the web a bit and discovered that
libpthread had fallen out of favor in 7 and was being replaced by
something else. Ok, fine, so I got rid of my old broken libpthread.so.2.
I tried to rebuild Code::Blocks again, and found that it was still
attempting to link to libpthread. I threw away all the code and
configurations, fetched the latest code, ran "bootstrap", "configure", and
"make" and it's STILL running g++ with the -pthread switch and
complaining about a missing libpthread.so.2. It finally dies with an
"undefined reference to `system at LIBTHREAD_1_0'
Should I expect the new standard threading library ("libthr" I think?) to
be a drop-in replacement for libpthread? If so, do you have any ideas
where I need to look to convince this code to use it?
For my personal projects, is the -pthread switch any good anymore, or is
there a different switch I should be using now?
Is libpthread even an option at all anymore? If so, how do I build it?
I'm just not sure what direction I should start troubleshooting in now.
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