I've compiled gcc on aix 4.3.3 in the past and no matter what c++ program I wrote, threading or no, I needed to specify the -pthread flag to get it to compile. It's an aix runtime thing with c++, pure c programs didn't have this problem. HTH, James -----Original Message----- From: Rene Rivera [mailto:grafik.list@redshift-software.com] Sent: Wednesday, April 07, 2004 12:55 PM To: boost-users@lists.boost.org Subject: [Boost-users] Re: Any Success with AIX and GCC? Peter Jones wrote:

Hey, remember back when Rene Rivera said:

...

The gcc toolset is already adding the -pthread option when linking multi-threaded variants (lines 143-145). Are you saying you need to use -pthread even when linking single-threaded variants?

This is what "bjam -sTOOLS=gcc -sBUILD=release" produces without my change to gcc-tools.jam:

Which builds the release single-threaded variants.

gcc-Link-action

bin/boost/libs/filesystem/build/libboost_filesystem.so/gcc/release/shared-li nkable-true/libboost_filesystem-gcc-1_31.so

bin/boost/libs/filesystem/build/libboost_filesystem.so/gcc/release/shared-li nkable-true/libboost_filesystem-gcc-1_31.imp

ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_lock ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_unlock ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_init ld: 0711-317 ERROR: Undefined symbol: .pthread_mutex_destroy

Is there a way to tell who is referencing those symbols? As it might not be Boost code but other runtime code. -- Something to try would be to compile an empty *.so. That is compile an empty source file and try doing a "-shared" link. If you get thread errors with an empty shared library, then the problem is that the GCC+AIX runtimes require threading. And I'll fix that on the toolset, and post a patch ;-) -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com - 102708583/icq _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users