GFortran in Cygwin1.7.1 for DDSCAT

For DDSCAT 7 users, the makefile needs gfortran. On window os, Gfortran can be installed in Cygwin 1.7.1 by installing “GCC4-fortran” package. It installs a exe file named “gfotran-4.exe” in the “xyz\cygwin\bin”. So my makefile compiler options are as follows: # 1.  gfortran compiler #     sp + no MKL + no OpenMP + no MPI # define the following: PRECISION    = dp CXFFTMKL.f    = cxfft3_mkl_fake.f90 CXFFTMKL.o    = cxfft3_mkl_fake.o MKLM        = DOMP        = OPENMP        = MPI.f        = mpi_fake.f90 MPI.o        = mpi_fake.o DMPI        = FC        = gfortran-4 FFLAGS        = -O2 LFLAGS         =