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Thread-Topic: a problem about pthread
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From: "#GAO YANDONG#" <gaoyandong@pmail.ntu.edu.sg>
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Subject: a problem about pthread
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Dear all,

=20

I met a problem when I compile DEAL.II (a general finite element
library) in FreeBSD 4.10. After I run "gmake", I got the following
information

=20

"

/usr/.../deal/deal.II/lib/libdeal_II_2d.g.so: undefined reference to
'pthread_mutex_unlock'

/usr/.../deal/deal.II/lib/libdeal_II_2d.g.so: undefined reference to
'pthread_mutex_destroy'

/usr/.../deal/deal.II/lib/libdeal_II_2d.g.so: undefined reference to
'pthread_mutex_lock'

/usr/.../deal/deal.II/lib/libdeal_II_2d.g.so: undefined reference to
'pthread_mutex_init'

=20

"

Someone tell me to use=20

"export LIBS=3D-lpthread"

before compile the library, but it didn't work.

=20

And, It's said on FreeBSD, "gcc -pthread " will generate some problem

http://lists.freebsd.org/mailman/htdig/freebsd-threads/2003-September/00
1203.html

=20

=20

What can I do?

=20

Best Regards,

=20

Yandong=20