Lapack calls from fortran
On 6/22/05, Paul Gilbert <pgilbert at bank-banque-canada.ca> wrote:
I am trying to call the lapack routine dgesv in the R distribution from
the fortran code for a package, but when I dyn.load("dse1.so") I get an
error about undefined symbol: dgesv_
I thought the proper incantation was
MAKEFLAG="FLIBS=/path to/R-2.1.1/libRlapack.so" R CMD SHLIB dse1.f
but apparantly not. How does one do this?
See section 1.2.1 of "Writing R Extensions". You should add a file
called Makevars to the src directory and include the line
PKG_LIBS = ${LAPACK_LIBS} ${BLAS_LIBS}
in that file