Hi,
the make.info suggests the following way of generating automatic
dependencies:
%.d: %.c
$(CC) -M $(CPPFLAGS) $< > [EMAIL PROTECTED]; \
sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < [EMAIL PROTECTED] > $@; \
rm -f [EMAIL PROTECTED]
However, fairly recent GCC has the -MT option that allows to specify
the targets to be put in the .d file. That is, one could just invoke
$ gcc -M -MT 'foo.o foo.d' foo.c
and get the dependencies in the form:
foo.o foo.d: bar.h baz.h /usr/include/stdio.h
This avoids spawning 2 additional processes and making a temporary
file. This option is available even in GCC 3.2; I haven't checked the
releases before it. Why doesn't make suggest using it?
Regards,
Alexey.
--
Goodbye, Hunam, I hope you aren't eaten by monsters.
-- Spathi captain Fwiffo, SC2
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