Makefile

KFVER=130

## Configure

LIBNAME := kissfft

BUILDDIR := build

DYN_LIB := $(BUILDDIR)/lib$(LIBNAME).so
STATIC_LIB := $(BUILDDIR)/lib$(LIBNAME).a

## Build targets

SRC_FILES := kiss_fftndr.c kiss_fftnd.c kiss_fftr.c kiss_fastfir.c kiss_fft.c
OBJ_FILES := $(patsubst %.c,$(BUILDDIR)/%.o,$(SRC_FILES))

## Flags

CFLAGS += -I. -I./tools

# for shared libraries (.so)
CFLAGS += -fPIC

## Rules

all:  $(OBJ_FILES) $(DYN_LIB) $(STATIC_LIB)

$(OBJ_FILES): | $(BUILDDIR)

$(DYN_LIB): CFLAGS += -shared 
$(DYN_LIB): $(OBJ_FILES)
	$(LINK.c) $^ $(LOADLIBES) $(LDLIBS) -o $@

$(STATIC_LIB): $(OBJ_FILES)
	$(AR) $(ARFLAGS) $@ $^

$(BUILDDIR)/%.o : %.c
	$(COMPILE.c) -o $@ $<

$(BUILDDIR)/%.o : tools/%.c
	$(COMPILE.c) -o $@ $<

$(BUILDDIR):
	mkdir -p $@

doc:
	@echo "Start by reading the README file.  If you want to build and test lots of stuff, do a 'make testall'"
	@echo "but be aware that 'make testall' has dependencies that the basic kissfft software does not."
	@echo "It is generally unneeded to run these tests yourself, unless you plan on changing the inner workings"
	@echo "of kissfft and would like to make use of its regression tests."

testall:
	# The simd and int32_t types may or may not work on your machine 
	make -C test DATATYPE=simd CFLAGADD="$(CFLAGADD)" test
	make -C test DATATYPE=int32_t CFLAGADD="$(CFLAGADD)" test
	make -C test DATATYPE=int16_t CFLAGADD="$(CFLAGADD)" test
	make -C test DATATYPE=float CFLAGADD="$(CFLAGADD)" test
	make -C test DATATYPE=double CFLAGADD="$(CFLAGADD)" test
	echo "all tests passed"

tarball: clean
	hg archive -r v$(KFVER) -t tgz kiss_fft$(KFVER).tar.gz 
	hg archive -r v$(KFVER) -t zip kiss_fft$(KFVER).zip

clean:
	cd test && make clean
	cd tools && make clean
	rm -f kiss_fft*.tar.gz *~ *.pyc kiss_fft*.zip 
	rm -Rf $(BUILDDIR)

asm: kiss_fft.s

kiss_fft.s: kiss_fft.c kiss_fft.h _kiss_fft_guts.h
	[ -e kiss_fft.s ] && mv kiss_fft.s kiss_fft.s~ || true
	gcc -S kiss_fft.c -O3 -mtune=native -ffast-math -fomit-frame-pointer -unroll-loops -dA -fverbose-asm 
	gcc -o kiss_fft_short.s -S kiss_fft.c -O3 -mtune=native -ffast-math -fomit-frame-pointer -dA -fverbose-asm -DFIXED_POINT
	[ -e kiss_fft.s~ ] && diff kiss_fft.s~ kiss_fft.s || true