using gcc to compile pthread program with gprof

[Aaron Phillips <aaron.phillips@xxxxxxxxxxxxxxxxxxxx>]

Hello.

I am using gcc 3.1 on HP-UX 11.0 to compile a threaded program for gprof 
support, like this:

$ gcc -D_POSIX_C_SOURCE=199506L -o cont cont.c -lpthread -pg

It compiles fine, but when I execute ./cont I get a bad return code from 
pthread_attr_init.  The error message is "Function is not available".  
When I leave off the -pg everything works fine.  Is there some special 
linking flags I have to also include?

Thanks much
Aaron