tar -xvf scalapack-2.1.0.tgz
cd scalapack-2.1.0
cp SLmake.inc.example SLmake.inc
vi SLmake.inc
BLASLIB=/path/to/LAPACK/libblas.a LAPACKLIB=/path/to/LAPACK/liblapack.a LIBS=$(LAPACKLIB) $(BLASLIB)
make
cp *.a /path/to/EXTRA/mathlib