# Executable name
EXE=gray

# Objects list
OBJ=gray.o grayl.o green_func_p.o const_and_precisions.o itm_constants.o itm_types.o

# Alternative search paths
vpath %.f90 src
vpath %.f src

# Fortran compiler name and flags
FC=gfortran
FFLAGS=-O3 

DIRECTIVES = -DREVISION="'$(shell svnversion)'"

all: $(EXE)

# Build executable from object files
$(EXE): $(OBJ)
	$(FC) $(FFLAGS) -o $@ $^

# Dependencies on modules
green_func_p.o: const_and_precisions.o
const_and_precisions.o: itm_types.o itm_constants.o
itm_constants.o: itm_types.o

# General object compilation command
%.o: %.f90
	$(FC) $(FFLAGS) -c $<

gray.o:gray.f green_func_p.o
	$(FC) -cpp $(DIRECTIVES) $(FFLAGS) -c $< 

grayl.o:grayl.f
	$(FC) $(FFLAGS) -c $^ 

.PHONY: clean install
# Remove output files
clean:
	rm -rf *.o *.mod $(EXE)

install:
	@if [ -f $(EXE) ]; then \
	  cp $(EXE) ~/bin/; \
	else \
	  echo File $(EXE) does not exist. Run \'make\' first; \
	fi