[R] f2c question

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Mar 6 14:40:25 CET 2000

> From: Jonathan.Yuen at evp.slu.se
> Date: Mon, 6 Mar 2000 14:09:51 +0100 (MET)
> Hello,
> I decided to try to compile R version 1.0.0 on my home-hacked linux
> system.  This is not a conventional distribution, but has been upgraded
> countless numbers of times (I think it started as a 1.2.13).  It's up to
> 2.2.13 (kernel version) and I still use gcc  I have managed to
> deal with the fortran part of R with f2c.  As it turns out I can compile
> the program OK, but when it gets to the libraries, specifically ctest (the
> first one that has a piece of fortran in it), the program complains that
> it can't find f2c.h. I MAY have moved the header to the wrong place when I
> rearranged my libraries for glibc, but it does make it through the normal
> compile.  I also found an f2c.h in the include/R_ext subdirectory of the
> source tree, in addition to my usual header source location.  I saw that
> the one in the source tree has some R-specific comments in it, and I
> assume that it is the correct one to use for R.

The search paths are different for the main compile and for packages.
The idea is that f2c.h is _not_ the correct one in general: it is an R
legacy. So the standard search is not finding f2c.h, and the solution
is to fix that.

I think problems with different f2c.h only arise on machines for which
long != int, but no guarantees.  The one in f2c.h will suffice for simple

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)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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