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Date: Fri, 29 Oct 2004 12:09:02 -0400 (EDT)
From: Cliff Addy <fbsdlist@federation.addy.com>
To: freebsd-questions@freebsd.org
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Subject: Compile problem with gd-2.0.28
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Trying to compile gd-2.0.28 under 4.9-RELEASE.  I get the error

   ./.libs/libgd.so: undefined reference to `pthread_mutex_unlock'
   ./.libs/libgd.so: undefined reference to `pthread_mutex_destroy'
   ./.libs/libgd.so: undefined reference to `pthread_mutex_lock'
   ./.libs/libgd.so: undefined reference to `pthread_mutex_init'

Looks to me like a bad reference to a threads library.

Any ideas ... ?

Cliff