Trying to get ROMS going for the first time

I'm on a CYGWIN machine, trying to build the Upwelling case as suggested. I get a funny naming error, which should be easy to fix, but I can't understand where the extra slash comes from. I'm guessing the file path should be;
/Projects/Upwelling/Build/make_macros.mk and NOT;
/Projects/Upwelling/Build //make_macros.mk, which is what is echoed on my screen...
$ ./build.bash
rm -f -r core *.ipo /Projects/Upwelling/Build //make_macros.mk
/bin/sh: //make_macros.mk: Is a directory
Can't open tmp file at ROMS/Bin/cpp_clean line 30.
makefile:238: INCLUDING FILE //make_macros.mk WHICH CONTAINS APPLICATION-DEPENDENT MAKE DEFINITIONS
cp -f /usr/include/netcdf.mod /Projects/Upwelling/Build
cp -f /usr/include/typesizes.mod /Projects/Upwelling/Build
./ROMS/Bin/sfmakedepend --cpp --fext=f90 --file=- --objdir=/Projects/Upwelling/Build -DROMS_HEADER="upwelling.h" -I ROMS/Include -I /Projects/Upwelling -I ROMS/Nonlinear -I ROMS/Nonlinear/Biology -I ROMS/Nonlinear/Sediment -I ROMS/Utility -I ROMS/Drivers -I ROMS/Functionals -I /Projects/Upwelling -I Master -I Compilers --silent --moddir /Projects/Upwelling/Build ROMS/Nonlinear/mpdata_adiff.F ROMS/Nonlinear/vwalk_floats.F ROMS/Nonlinear/pre_step3d.F ROMS/Nonlinear/ini_fields.F ROMS/Nonlinear/wetdry.F ROMS/Nonlinear/v3dbc_im.F ROMS/Nonlinear/obc_adjust.F ROMS/Nonlinear/get_idata.F ROMS/Nonlinear/set_data.F ROMS/Nonlinear/rhs3d.F ROMS/Nonlinear/forcing.F ROMS/Nonlinear/radiation_stress.F ROMS/Nonlinear/t3dmix.F ROMS/Nonlinear/diag.F ROMS/Nonlinear/set_zeta.F ROMS/Nonlinear/rho_eos.F ROMS/Nonlinear/obc_volcons.F ROMS/Nonlinear/nesting.F ROMS/Nonlinear/get_data.F ROMS/Nonlinear/initial.F ROMS/Nonlinear/set_avg.F ROMS/Nonlinear/step3d_uv.F ROMS/Nonlinear/set_tides.F ROMS/Nonlinear/exchange_2d.F ROMS/Nonlinear/bvf_mix.F ROMS/Nonlinear/set_massflux.F ROMS/Nonlinear/omega.F ROMS/Nonlinear/t3dbc_im.F ROMS/Nonlinear/output.F ROMS/Nonlinear/step2d.F ROMS/Nonlinear/u3dbc_im.F ROMS/Nonlinear/hmixing.F ROMS/Nonlinear/main3d.F ROMS/Nonlinear/conv_bry2d.F ROMS/Nonlinear/conv_bry3d.F ROMS/Nonlinear/my25_corstep.F ROMS/Nonlinear/zetabc.F ROMS/Nonlinear/exchange_3d.F ROMS/Nonlinear/bulk_flux.F ROMS/Nonlinear/set_depth.F ROMS/Nonlinear/tkebc_im.F ROMS/Nonlinear/prsgrd.F ROMS/Nonlinear/step_floats.F ROMS/Nonlinear/bbl.F ROMS/Nonlinear/bc_bry3d.F ROMS/Nonlinear/frc_adjust.F ROMS/Nonlinear/lmd_vmix.F ROMS/Nonlinear/v2dbc_im.F ROMS/Nonlinear/u2dbc_im.F ROMS/Nonlinear/bc_bry2d.F ROMS/Nonlinear/conv_2d.F ROMS/Nonlinear/lmd_swfrac.F ROMS/Nonlinear/uv3dmix.F ROMS/Nonlinear/my25_prestep.F ROMS/Nonlinear/lmd_skpp.F ROMS/Nonlinear/wvelocity.F ROMS/Nonlinear/lmd_bkpp.F ROMS/Nonlinear/conv_3d.F ROMS/Nonlinear/bc_2d.F ROMS/Nonlinear/gls_prestep.F ROMS/Nonlinear/main2d.F ROMS/Nonlinear/interp_floats.F ROMS/Nonlinear/step3d_t.F ROMS/Nonlinear/set_vbc.F ROMS/Nonlinear/bc_3d.F ROMS/Nonlinear/gls_corstep.F ROMS/Nonlinear/Biology/biology_floats.F ROMS/Nonlinear/Biology/biology.F ROMS/Nonlinear/Sediment/sed_bed.F ROMS/Nonlinear/Sediment/sed_settling.F ROMS/Nonlinear/Sediment/sed_surface.F ROMS/Nonlinear/Sediment/sed_fluxes.F ROMS/Nonlinear/Sediment/sed_bedload.F ROMS/Nonlinear/Sediment/sediment.F ROMS/Functionals/analytical.F ROMS/Utility/def_diags.F ROMS/Utility/read_fltbiopar.F ROMS/Utility/get_2dfld.F ROMS/Utility/convolve.F ROMS/Utility/nf_fread3d.F ROMS/Utility/wrt_his.F ROMS/Utility/state_addition.F ROMS/Utility/nrutil.F ROMS/Utility/state_initialize.F ROMS/Utility/read_asspar.F ROMS/Utility/def_hessian.F ROMS/Utility/get_3dfld.F ROMS/Utility/inner2state.F ROMS/Utility/read_phypar.F ROMS/Utility/set_contact.F ROMS/Utility/ludcmp.F ROMS/Utility/ini_lanczos.F ROMS/Utility/abort.F ROMS/Utility/def_ini.F ROMS/Utility/obs_read.F ROMS/Utility/read_biopar.F ROMS/Utility/back_cost.F ROMS/Utility/checkadj.F ROMS/Utility/stats_modobs.F ROMS/Utility/get_cycle.F ROMS/Utility/nf_fread4d.F ROMS/Utility/wrt_diags.F ROMS/Utility/nf_fread3d_bry.F ROMS/Utility/lubksb.F ROMS/Utility/wrt_floats.F ROMS/Utility/extract_sta.F ROMS/Utility/wrt_info.F ROMS/Utility/set_weights.F ROMS/Utility/def_lanczos.F ROMS/Utility/regrid.F ROMS/Utility/nf_fwrite3d.F ROMS/Utility/packing.F ROMS/Utility/def_gst.F ROMS/Utility/def_mod.F ROMS/Utility/nf_fwrite3d_bry.F ROMS/Utility/read_sedpar.F ROMS/Utility/read_fltpar.F ROMS/Utility/get_bounds.F ROMS/Utility/wrt_hessian.F ROMS/Utility/wrt_gst.F ROMS/Utility/congrad.F ROMS/Utility/checkdefs.F ROMS/Utility/wpoints.F ROMS/Utility/sqlq.F ROMS/Utility/def_tides.F ROMS/Utility/zeta_balance.F ROMS/Utility/set_3dfld.F ROMS/Utility/normalization.F ROMS/Utility/posterior.F ROMS/Utility/set_2dfldr.F ROMS/Utility/obs_cost.F ROMS/Utility/checkerror.F ROMS/Utility/obs_depth.F ROMS/Utility/nf_fread2d.F ROMS/Utility/set_2dfld.F ROMS/Utility/nf_fread2d_bry.F ROMS/Utility/wrt_station.F ROMS/Utility/get_3dfldr.F ROMS/Utility/distribute.F ROMS/Utility/state_dotprod.F ROMS/Utility/get_ngfld.F ROMS/Utility/rep_matrix.F ROMS/Utility/frc_weak.F ROMS/Utility/vorticity.F ROMS/Utility/cost_grad.F ROMS/Utility/get_nudgcoef.F ROMS/Utility/def_error.F ROMS/Utility/nf_fwrite4d.F ROMS/Utility/mp_exchange.F ROMS/Utility/def_avg.F ROMS/Utility/set_ngfldr.F ROMS/Utility/check_multifile.F ROMS/Utility/timers.F ROMS/Utility/ini_hmixcoef.F ROMS/Utility/gasdev.F ROMS/Utility/ran1.F ROMS/Utility/array_modes.F ROMS/Utility/interpolate.F ROMS/Utility/stiffness.F ROMS/Utility/get_state.F ROMS/Utility/dotproduct.F ROMS/Utility/ntimestep.F ROMS/Utility/shapiro.F ROMS/Utility/close_io.F ROMS/Utility/wrt_ini.F ROMS/Utility/extract_obs.F ROMS/Utility/get_grid.F ROMS/Utility/wrt_tides.F ROMS/Utility/get_2dfldr.F ROMS/Utility/nf_fwrite2d.F ROMS/Utility/nf_fwrite2d_bry.F ROMS/Utility/ini_adjust.F ROMS/Utility/get_ngfldr.F ROMS/Utility/checkvars.F ROMS/Utility/set_masks.F ROMS/Utility/get_varcoords.F ROMS/Utility/def_impulse.F ROMS/Utility/def_dim.F ROMS/Utility/read_stapar.F ROMS/Utility/def_var.F ROMS/Utility/inquire.F ROMS/Utility/wrt_error.F ROMS/Utility/get_date.F ROMS/Utility/wrt_avg.F ROMS/Utility/posterior_var.F ROMS/Utility/def_rst.F ROMS/Utility/white_noise.F ROMS/Utility/def_norm.F ROMS/Utility/mp_routines.F ROMS/Utility/state_copy.F ROMS/Utility/def_info.F ROMS/Utility/lbc.F ROMS/Utility/def_his.F ROMS/Utility/random_ic.F ROMS/Utility/def_floats.F ROMS/Utility/state_product.F ROMS/Utility/cgradient.F ROMS/Utility/state_scale.F ROMS/Utility/erf.F ROMS/Utility/get_gst.F ROMS/Utility/ran_state.F ROMS/Utility/strings.F ROMS/Utility/set_scoord.F ROMS/Utility/sum_grad.F ROMS/Utility/metrics.F ROMS/Utility/uv_rotate.F ROMS/Utility/read_couplepar.F ROMS/Utility/set_3dfldr.F ROMS/Utility/wrt_impulse.F ROMS/Utility/set_diags.F ROMS/Utility/obs_initial.F ROMS/Utility/def_station.F ROMS/Utility/set_ngfld.F ROMS/Utility/inp_par.F ROMS/Utility/grid_coords.F ROMS/Utility/wrt_rst.F ROMS/Utility/obs_write.F ROMS/Modules/mod_coupling.F ROMS/Modules/mod_floats.F ROMS/Modules/mod_clima.F ROMS/Modules/mod_netcdf.F ROMS/Modules/mod_coupler.F ROMS/Modules/mod_param.F ROMS/Modules/mod_iounits.F ROMS/Modules/mod_diags.F ROMS/Modules/mod_biology.F ROMS/Modules/mod_stepping.F ROMS/Modules/mod_kinds.F ROMS/Modules/mod_bbl.F ROMS/Modules/mod_behavior.F ROMS/Modules/mod_eoscoef.F ROMS/Modules/mod_forces.F ROMS/Modules/mod_average.F ROMS/Modules/mod_nesting.F ROMS/Modules/mod_ncparam.F ROMS/Modules/mod_ocean.F ROMS/Modules/mod_parallel.F ROMS/Modules/mod_sediment.F ROMS/Modules/mod_boundary.F ROMS/Modules/mod_grid.F ROMS/Modules/mod_tides.F ROMS/Modules/mod_strings.F ROMS/Modules/mod_eclight.F ROMS/Modules/mod_arrays.F ROMS/Modules/mod_fourdvar.F ROMS/Modules/mod_scalars.F ROMS/Modules/mod_sources.F ROMS/Modules/mod_storage.F ROMS/Modules/mod_sedbed.F ROMS/Modules/mod_mixing.F Master/ocean_control.F Master/esmf_roms.F Master/ocean_coupler.F Master/roms_export.F Master/master.F Master/propagator.F Master/roms_import.F > /Projects/Upwelling/Build/MakeDepend
cp -p //make_macros.mk /Projects/Upwelling/Build
cp: cannot stat `//make_macros.mk': No such file or directory
make: *** No rule to make target '//make_macros.mk'. Stop.
Ten hours later, I'm now giving up searching for threads on this error...
Attaching my build.bash file and file structure;
Sorry for asking such a trivial question...
Best regards!
//Per