Subj : Re: compiling for pthreads on AIX 5.2L
To   : comp.programming.threads
From : fred
Date : Tue Mar 08 2005 07:49 am

Patrick, thanks for the reply.

According to the document "Using the GNU C/C++ compiler on AIX", found
on IBM developerworks site, "-pthread" is the correct option to be
using.

whether I use a -o or a -c, the error is the same (thanks for pointing
out that I was using the wrong flag, though. Duh). It complains about a
series of lines in /usr/include/pthread.h, all of which reference
pthread_rwlock_t.

pthread_rwlock_t is mentioned only (of the files in /usr/include) in
/usr/include/sync.h which also includes pthread.h. Replacing the
include statement in the sample program with sync.h instead of
pthread.h does not fix the problem, it merely adds more error messages.
Doing find/grep thru the subdirectories of /usr/include/ I find that
pthread_rwlock_t is defined in sys/types.h. sys/types.h is included
near the top of pthread.h.

So, my point wasn't so much to ask someone to debug it for me as to
find out if anyone else has seen the problem and knew how to deal with
it, or had suggestions on other ways to compile such programs on AIX.
I'll continue to dig thru the headers to see what is preventing the
compiler from seeing the definition of pthread_rwlock_t, as it does
appear that it is unaware of that struct.

.