pgcc -V: 'Portland Group' vs. 'NVIDIA CORPERATION'

[Christian Rössel]

Jiri,

with pgcc/pgCC/pgf* version 13.8 you changed the output of 'pgcc -V' from

pgcc 13.4-0 64-bit target on Linux -tp penryn
Copyright 1989-2000, The Portland Group, Inc.  All Rights Reserved.
Copyright 2000-2013, STMicroelectronics, Inc.  All Rights Reserved.

to

pgcc 13.8-0 64-bit target on x86-64 Linux -tp penryn
Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.

Unfortunately, if pgcc/pgCC/pgf* is used via a wrapper, for example as a
MPI compiler wrapper, your change breaks autotools-based shared builds.

This is due to the following case statement in libtool's
'libltdl/m4/libtool.m4':

    case `$CC -V 2>&1 | sed 5q` in
        ...
       *Portland\ Group*)
         lt_prog_compiler_wl='-Wl,'
         lt_prog_compiler_pic='-fpic'
         lt_prog_compiler_static='-Bstatic'
         ;;
        ...

Providing a libtool patch to handle 'NVIDIA CORPORATION' in this case
statement is easy (attached but untested). What isn't easy is to get a
patch into a libtool release and to get this release to the users. This
basically means that pgcc/pgCC/pgf* version >= 13.8 can not be used for
autotools-based shared MPI builds any longer. This affects e.g., Score-P
and Scalasca.

I don't know about your copyright notice policy at NVIDIA, but you would
help users if you would mention the previous copyright holders in 'pgcc
-V' as well, e.g.,

$ pgcc -V

pgcc 13.8-0 64-bit target on Linux -tp penryn
Copyright (c) 1989-2000, The Portland Group, Inc.  All Rights Reserved.
Copyright (c) 2000-2013, STMicroelectronics, Inc.  All Rights Reserved.
Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.

Best,
Christian
--
Dipl-Phys.
Christian Rössel
Forschungszentrum Jülich GmbH
Jülich Supercomputing Centre
Telefon: +49 2461 61-1773
E-Mail: address@hidden
Internet: http://www.fz-juelich.de/jsc


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