[Rd] [PATCH] Add fpicflags for Intel(R) Fortran Compiler (PR#8344)

[ripley@stats.ox.ac.uk]

1) The documented way to specify this is to set FPICFLAGS in config.site: 
see the example in R-admin for the PG compilers.  When you tried that, 
what went wrong?

2) It seems strange to specify this for the Fortran compiler and not the C 
or C++ compiler.

3) You have suggested the change to a section for all OSes.  Do you know 
for sure that all compilers called 'ifort' on all OSes need the -fPIC 
flag?  Or is it really just for Linux (and AFAICS, just x86_64 Linux, as 
i386 Linux seems to work with icc/ifort without it).

On Tue, 22 Nov 2005 kugelfang at gentoo.org wrote:

> Full_Name: Danny van Dyk
> Version: R-2.2.0
> OS: Gentoo/AMD64
> Submission from: (NULL) (83.129.50.65)
>
>
> I have successfully compiled R-2.2.0 using ifc-9.0.026 on my x86_64 box.
> The only (minor) change that hade to be made was adding fpicflags="-fPIC" to
> configure.ac in case F77 matches either "ifc" (old name) or "ifort" (new name).
>
> Please apply following patch:
>
> dvandyk at phi trunk $ svn diff
>        Index: configure.ac
> ===================================================================
> --- configure.ac        (revision 36420)
> +++ configure.ac        (working copy)
> @@ -942,7 +942,7 @@
>   rm -f Imakefile Makefile
> fi
>
> -## Step 2.  GNU compilers.
> +## Step 2.  GNU and Intel compilers.
> if test "${GCC}" = yes; then
>   cpicflags="-fPIC"
>   shlib_ldflags="-shared"
> @@ -954,6 +954,11 @@
>   cxxpicflags="-fPIC"
>   shlib_cxxldflags="-shared"
> fi
> +case "${F77}" in
> +  ifc|ifort)
> +    fpicflags="-fPIC"
> +    ;;
> +esac
>
> ## Step 3.  Individual platform overrides.
> case "${host_os}" in
> ===================================================================
>
> Danny
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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