[R] using src/Makevars file

From: Joel Bremson <joel3000_at_gmail.com>
Date: Fri 20 May 2005 - 10:20:11 EST

Hi all,

Thanks to all who offered advice on using F95 in R.

Now I'm trying to compile a test package using gfortran, Linux 2.4.21 and R 2.1.0.

I was able to successfully compile and use a test F95 routine by setting my environment variables as follows in bash:

export PATH=~/bin/:$PATH
export F77=gfortran
export LD_LIBRARY_PATH=~/bin/irun/lib

Now I'm trying to write a Makevars file for my test package and not quite sure how to do it. I've tried


but when running an R CMD check on the package I see that it's still using g77 to compile:


** libs
g77 -fPIC -g -O2 -c estimate.f -o estimate.o estimate.f: In subroutine `estimate':
forall (i = 1:nxrows) beta(i) = i * 2
Invalid declaration of or reference to symbol `forall' at (^) [initially seen at (^)]

----end output ----

The code compiles using:
gfortran -c estimate.f

I can run my code if I build the .so by hand and then dyn.load it.

Here is my F95 test code:

subroutine estimate(beta, yij, nij, nxrows, nxcols,xmat, & irequest, ierror)

integer nxrows, nxcols, yij, nij, irequest, ierror double precision beta(nxrows), xmat(nxrows,nxcols) integer i

i = 0
c fortran 95 version
forall (i = 1:nxrows) beta(i) = i * 2

ierror = 0


Joel Bremson
UC Davis

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