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From tmcsys <>
Subject ActiveMQ-CPP - AIX 5.2 atexit problem
Date Wed, 11 Feb 2009 00:12:18 GMT

I am getting a segfault when closing an ActiveMQ-CPP shared library on AIX.

I built ActiveMQ-cpp 2.2.3 on AIX 5.2 with gcc 3.4.

Everything works fine except that when I close the shared library the linked
application segfaults.

This is a common problem with AIX shared libraries, and it usually has to do
with cleanup routines installed by atexit().  In the past I've been able to
locate these routines, unatexit() them, and call them manually before
calling dlclose().

I've been over the ActiveMQ-cpp code several times, but I can't seem to find
any code that installs cleanup code. 

I see calls to apr_terminate in the apr library, and the apr library is
well-behaved at dlclose(), but I get the segfault when linking the ActiveMQ
shared library is linked, even though it is never called.

This is a nagging problem and I would appreciate any help I can get.

The other components are apr-1.3.3, and apr-util-1.3.4, all recently
compiled and linked by gcc 3.4.

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