mkdep program for SysV (Xenix/Unix)

[Ned Nowotny]

In article <1990Dec14.023842.21164 at robobar.co.uk> ronald at robobar.co.uk (Ronald S H Khoo) writes:
>One fast and accurate way to make dependencies for makefiles is to use gcc -M.
>(Doug's asking about Xenix/Sys V, so he'd need gcc.  BSD cc has -M doesn't it?)
>
>For example, you could add something like
>
>	depend:
>		sed "/^# DELETE ME/q" Makefile > Makefile.new
>		gcc $(CFLAGS) -M $(OBJS:.o=.c) >> Makefile.new
>		mv Makefile.new Makefile
>
>	# DELETE ME
>

Or,

Makefile.depend: $(SRCS) $(HDRS)
	for src in $(SRCS) ; \
	do \
	    $(CC) $(CFLAGS) -E $${src}             | \
		grep '^# *1 '                      | \
		sed 's@[^"]*"\([^"]*\)".*@\1 \\@'  | \
		grep -v "$${src}"                  | \
		sort -u                      >> $@ ; \
	    echo  "$${src}" >> $@ ; \
	done


if your compiler does not have -M but does have -E.

Ned Nowotny, MCC CAD Program, Box 200195, Austin, TX  78720  Ph: (512) 338-3715
ARPA: ned at mcc.com                   UUCP: ...!cs.utexas.edu!milano!cadillac!ned
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