Shared library version of pnetcdf

[Wadud Miah]

Hi Ed,

Thanks for the quick reply. I set the following compiler flags:

              CFLAGS      = -fPIC
              CXXFLAGS    = -fPIC
              F77FLAGS    = -fPIC
              F90FLAGS    = -fPIC

But the autoconf system is still using Linux “ar” command to add the object files to libpnetcdf.a:

ar cru libpnetcdf.a mpinetcdf.o header.o mpincio.o dim.o error.o nc.o string.o var.o ncmpidtype.o filetype.o nonblocking.o malloc.o utf8proc.o vard.o fill.o util.o hash_func.o getput.o i_getput.o bput.o ncx.o m_getput_varx.o varn.o i_varn.o attr.o convert_swap.o

This is done for all object files created with “-fPIC” flag. What’s needed here is that the autconf system uses the Linux linker with the “-shared” flag to create the object file. Or is there way to hack this using the current autoconf system or do it manually?

Regards,
Wadud.

From: Ed Hartnett [mailto:edwardjameshartnett at gmail.com]
Sent: 25 September 2017 12:49
To: Wadud Miah <wadud.miah at nag.co.uk>
Cc: parallel-netcdf at lists.mcs.anl.gov
Subject: Re: Shared library version of pnetcdf

Just build with CFLAGS=-fPIC

Would be nice if the pnetcdf team could upgrade their build systems to use libtool. It's easy and would help a lot.

Thanks,
Ed Hartnett

On Mon, Sep 25, 2017 at 2:37 AM, Wadud Miah <wadud.miah at nag.co.uk<mailto:wadud.miah at nag.co.uk>> wrote:
Hi,

This question may have been asked already, but I could not find a definitive answer in the mailing list. I would like to build a shared object version of pnetcdf so I can link it to the IOR benchmark. I know a static version is faster, but a shared object file will allow me to profile IOR, so that is the reason why. Any help will be greatly appreciated. I could not find any configure flags for pnetcdf to allow me to build a shared object version of the library.

Regards,
Wadud.

-----------------------------------
Dr. Wadud Miah
Numerical Algorithms Group




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Disclaimer

The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is:
Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom.

This e-mail has been scanned for all viruses and malware, and may have been automatically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for business. 
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