# Makefile for cahn_hilliard microstructural evolution visualization

 
INDENT    = astyle --style=allman --add-brackets
VIEWER    = eog

CC        = clang
LFLAGS    = -O3
CFLAGS    = -Weverything -Wextra -pedantic -std=c99 $(LDFLAGS)
LDLIBS    = $(shell gsl-config --libs) -lfftw3 -lgd -lm 

.SUFFIXES:
.SUFFIXES:  .c .o .h .res .gp

.PHONY: clean veryclean indent gifs anim

target    = ch

sources   = cahn-hilliard.c evolve.c snapshot.c
objects   = $(sources:.c=.o)
headers   = functions.h
gif       = $(target).gif
readme    = output/README

## help        : Default action is to show what commands are available.
help: Makefile
	@sed -n 's/^##//p' $<

$(objects): $(sources) $(headers)

## ch          : Compile and link the executable
$(target): $(objects)
	${CC} $(LFLAGS) -o $@ $^ $(LDLIBS)

## gifs        : Generate the snapshots
gifs $(readme): $(target)
	./$(target)

## anim        : Create the animation
anim: $(gif)
$(gif): output/README
	gifsicle -o $@ -d10 -l100 -O output/*.gif

## view        : View the animation
view: $(gif)
	$(VIEWER) $^

## indent      : Indent the source code
indent:
	$(INDENT) $(sources)

## clean       : Remove the auto-generated files
clean:
	rm -f *.o *~ $(target)
	rm -f *.*.orig

## veryclean   : Remove the auto-generated files, 
##               the snapshots, and the animation
veryclean: clean
	rm -f output/*.gif output/README $(gif)

## settings    : Show variables and settings.
settings:
	@echo ' '
	@echo 'sources   :' $(sources)
	@echo 'objects   :' $(objects)
	@echo 'target    :' $(target)
	@echo 'gif       :' $(gif)
	@echo ' '
	@echo 'INDENT    :' $(INDENT)
	@echo ' '
	@echo 'CC        :' $(CC)
	@echo 'LDFLAGS   :' $(LDFLAGS)
	@echo 'CFLAGS    :' $(CFLAGS)
	@echo 'LDLIBS    :' $(LDLIBS)
	@echo ' '