I have managed to build openssl/curl so that my test application would
work!

>From some HP-UX manual I found that multi-threaded applications should
be compiled with -D_POSIX_C_SOURCE=199506L.

For openssl in configure I specified additional flags and libraries:
threads -D_REENTRANT -D_POSIX_C_SOURCE=199506L -D_POSIX_THREAD_SEMANTICS
-lpthread

For curl I specified the following options (-D_REENTRANT is most
probably redundant):
CFLAGS="-O2 -D_POSIX_C_SOURCE=199506L -D_REENTRANT
-D_POSIX_PTHREAD_SEMANTICS" LIBS=-lpthread

This seems to help! Thanks for the clues!

-----Original Message-----
From: curl-library-bounces_at_cool.haxx.se
[mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of Andrei Tarassov
Sent: Wednesday, August 25, 2004 10:10
To: libcurl development
Subject: RE: Multithreaded problem on HP-UX

On my HP-UX box I found an older pre-built version of curl. I tried to
link with it using the same compilation/linkage options and the same
version of openssl (unless that old curl was linked statically or used a
fixed path to the ssl library). The test application worked! So I guess
the problem is in how I build the new curl... I will try to build curl
using the instructions you provided.

Thanks!

-----Original Message-----
From: curl-library-bounces_at_cool.haxx.se
[mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of Alexander
Krasnostavsky
Sent: Wednesday, August 25, 2004 09:55
To: libcurl development
Subject: RE: Multithreaded problem on HP-UX

The following I found for gcc (see step 3):

A few preliminary steps you should take before beginning any pthread
coding is to:
1. add #include <pthread.h> in your .c or .h header file(s)
2. define the #define _REENTRANT macro somewhere in a common .h or .c
file
3. In your Makefile make sure gcc links against -lpthread
4. Optional: add -D_POSIX_PTHREAD_SEMANTICS to your Makefile (gcc flag)
for certain function calls like sigwait()

-----Original Message-----
From: curl-library-bounces_at_cool.haxx.se
[mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of Andrei Tarassov
Sent: Wednesday, August 25, 2004 09:12
To: libcurl development
Subject: RE: Multithreaded problem on HP-UX

I guess that this is for original cc shipped for HP-UX. Are there the
same kind of options for gcc?

-----Original Message-----
From: curl-library-bounces_at_cool.haxx.se
[mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of Alexander
Krasnostavsky
Sent: Wednesday, August 25, 2004 09:00
To: libcurl development
Subject: RE: Multithreaded problem on HP-UX

On HP multithreading option is "-mt":
cc manual:
-mt Sets various -D flags to enable multi-threading and
               also sets -lpthread. For details see HP C Online Help.

Check that you compiled with this option.

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Received on 2004-08-25