I think that's what the fix is. I configured with CFLAGS=-D_REENTRANT.
It's been building for a while, so I should know in a little bit.

Kevin

-----Original Message-----
From: Rick Jones [mailto:raj_at_tardy.cup.hp.com]
Sent: Wednesday, November 27, 2002 10:55 AM
To: curl-library_at_lists.sourceforge.net
Cc: curl-users_at_lists.sourceforge.net
Subject: Re: HP-UX Saga

> > I've compiled libcURL for HP-UX 11.00 using OpenSSL 0.9.6g with
> > the HP aCC compiler. I'm having an odd problem I was hoping
> > someone could help me with.
>
> I've never used aCC nor have I any access to any HP-UX machines, but
> I'll give my view of things anyway.
And I am far from a compiler expert, but my understanding is that it
isn't until the IPF compilers (IPF == Itanium Processor Family, what
some call IA64) that ANSI C and C++ are handled by the same compiler.
I tink that until then it is still suggested that one compile C with
the ANSI C compiler.
> > I added some debugging messages to the libcURL code and found that
when
> > non-blocking sockets are used, OpenSSL will sometimes return
> > SSL_ERROR_SYSCALL with errno set to EAGAIN. The problem is that
errno is a
> > global variable and one thread may change it before another thread
looks at
> > it. At least, that is how it appears.
>
> Is it really (a problem with errno and threads)? Most modern unixes
have
> fixed the early problems with errno being a single global variable.
If the proper compile-time defines are set then on HP-UX indeed errno
becomes a function returning the per-thread error number. I think that
one needs to be compiled (and that would be everything - the app, the
libcURL, the OpenSSL...) with something like -D_REENTRANT.
rick jones

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Received on 2002-11-27