[R] R/C interface

estuart@fas.harvard.edu estuart at fas.harvard.edu
Wed Jul 17 13:52:57 CEST 2002

I am trying to use the R/C interface on a Unix system that unfortunately does 
not have the gnu C compiler and am having trouble accessing the math functions 
from math.h.

To compile a C program with math functions on this system, the following 
command is used (and the order is important: the /usr/lib/libm.a statement must 
come at the end of the command):
"cc program.c /usr/lib/libm.a"

I am having trouble getting R to compile the C programs with this extra command 
(/usr/lib/libm.a).  I have tried the CFLAGS option, and have looked at the 
scripts for the COMPILE and SHLIB commands but have not seen anything obvious 
(and I am not very familiar with Unix and C in general).  

Is there some way I can get R to use this when it does the C compiling in R CMD 

Thank you in advance for any help!

Elizabeth Stuart

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