R-beta: libf2c

Thomas Lumley thomas at biostat.washington.edu
Sat Jul 5 23:48:49 CEST 1997

What is the correct procedure for linking a dynamically loaded function
that uses routines from libf2c that are not in the `lite' version in
src/applc? Quite a lot of FORTRAN programs seem to need pow_ii, for

I have been working with Alan Genz's adaptive integration routine and when
I compile it with R's built-in f2c.h and libf2c and a copy of pow_ii.c I
get the right answers (ie same as in S)  but when I use g77 or f2c and the
system f2c.h and libf2c I get substantially lower accuracy (though
still the 'right' answer)

This is running g77 version 0.5.20, Debian 2.0.29, gcc and

Any ideas?

Thomas Lumley
Biostatistics		: "Never attribute to malice what  :
Uni of Washington	:  can be adequately explained by  :
Box 357232		:  incompetence" - Hanlon's Razor  :
Seattle WA 98195-7232	:				   :

r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch

More information about the R-help mailing list