OBJS =	module_sf_noahlsm.o \
	module_model_constants.o \
	module_sf_urban.o \
	kwm_date_utilities.o \
	module_netcdf_io.o \
	module_io.o \
	module_ascii_io.o \
	module_Noahlsm_utility.o

CMD = driver.exe urban_driver.exe graphics.exe 

INCLUDES = 	-I$(NETCDF)/include
LIBS = 		-L$(NETCDF)/lib -lnetcdf
NCARGLIBS = 	-L$(NCARG_ROOT)/lib -L/usr/X11R6/lib -lncarg -lncarg_gks -lncarg_c -lX11 -lXext
RM = \rm -f

CPP_DEFINES =

#
# On some linux machines, NCAR-Graphics seems to require the g2c library.  
# All that stuff with G2CNAME, G2CPATH, and G2CLIB is my attempt to find 
# out where that library resides. I don't know how robust this 
# investigation is (probably not very).  If it's not working for you,
# take it out and hard-code the G2CLIB variable, if necessary.
#

#
# Choose your poison:
#

F90 = g95
# F90 = gfortran
# F90 = pgf90
# F90 = ifort
# F90 = xlf90

#
# Options specific to pgf90 compiler:
#
ifeq ($(F90),pgf90)
	FFLAGS = -Mfree -g -C -O0 -Ktrap=fp
	G2CNAME = 	$(shell g77 -print-file-name=libg2c.a)
	G2CPATH =	$(dir ${G2CNAME})
	G2CLIB  =	-L${G2CPATH} -lg2c
endif

#
# Options specific to g95 compiler:
#
ifeq ($(F90),g95)
	FFLAGS = -I. -ffree-form -ffree-line-length-huge -fbounds-check -g -O0
	G2CNAME = 	$(shell g77 -print-file-name=libg2c.a)
	G2CPATH =	$(dir ${G2CNAME})
	G2CLIB  =	-L${G2CPATH} -lg2c
endif

#
# Options specific to gfortran compiler:
#
ifeq ($(F90),gfortran)
	FFLAGS = -ffree-form -g -O0 -ffpe-trap=invalid,zero,overflow,underflow -ffree-line-length-none
	G2CNAME = 	$(shell g77 -print-file-name=libg2c.a)
	G2CPATH =	$(dir ${G2CNAME})
	G2CLIB  =	-L${G2CPATH} -lg2c
endif

#
# Options specific to ifort compiler:
#
ifeq ($(F90),ifort)
	FFLAGS = -free -g -check all,noshape,nopointer -O0 -fpe0
	G2CNAME = 	$(shell g77 -print-file-name=libg2c.a)
	G2CPATH =	$(dir ${G2CNAME})
	G2CLIB  =	-L${G2CPATH} -lg2c
endif

#
# Options specific to xlf90 compiler on IBM
#
ifeq ($(F90),xlf90)
	FFLAGS = -qfree=f90 -g -O0
	G2CLIB =
endif

all:	$(CMD)

driver.exe:	$(OBJS)
	$(F90) -o $(@) $(OBJS) simple_driver.o $(LIBS)


urban_driver.exe:	$(OBJS)
	$(F90) -o $(@) $(OBJS) simple_driver_urban.o $(LIBS)

graphics.exe:	$(OBJS)
	$(F90) -o $(@) $(OBJS) graphics_compare.o $(LIBS) $(NCARGLIBS) ${G2CLIB}

.F.o:
	$(F90) -c $(CPP_DEFINES) $(INCLUDES) $(FFLAGS) $(<)

clean:
	$(RM) $(OBJS) simple_driver.o graphics_compare.o simple_driver_urban.o $(CMD) *.mod *~

urban_driver.exe:	simple_driver_urban.o
driver.exe:		simple_driver.o
graphics.exe:		graphics_compare.o
module_sf_noahlsm.o:	module_sf_urban.o
module_sf_noahlsm.o:	module_model_constants.o
simple_driver.o:	module_io.o
simple_driver.o:	kwm_date_utilities.o
simple_driver.o:	module_Noahlsm_utility.o
module_io.o:		module_ascii_io.o
module_io.o:		module_netcdf_io.o