- cleaned old and not working autoconf files for filters

filters := php_colormod php_bumpmap php_testfilter php_hsbcolor php_colormatrix
filters_la := $(addsuffix .la,$(filters))
filters_lo := $(addsuffix .lo,$(filters))

all : $(filters_la)
$(filters_lo) : %.lo : %.c
	$(LIBTOOL) --mode=compile $(COMPILE) -c $*.c
$(filters_la) : %.la : %.lo
	$(LIBTOOL) --mode=link $(COMPILE) -module -avoid-version -o $*.la $*.lo -rpath $(filters_libdir) -lm
install : all
	$(mkinstalldirs) $(filters_libdir)
	$(LIBTOOL) cp $(filters_la) $(filters_libdir)
clean:
	rm -f *.lo *.slo *.la *.o
	rm -rf .libs
distclean: clean
	rm -f Makefile