Hi,
On Wed, 7 Mar 2007, Johannes Sixt wrote:
> Johannes Schindelin wrote:
> > You can do that now by removing just the object files containing the
> > code you want to debug, and saying "make DEBUG=1".
> > [...]
> > -CFLAGS = -g -O2 -Wall
> > +CFLAGS = -g -Wall
> > +ifndef DEBUG
> > + CFLAGS += -O2
> > +endif
>
> I think the shortcut to remove just the interesting object file does not
> work because Makefile notices (the GIT-CFLAGS rule) that there are "new
> flags or prefix", and so recompiles everything.
That is unfortunatley true, and was hidden in my test by something
completely unrelated.
I do something completely different now:
@@ -846,7 +841,8 @@ TRACK_CFLAGS = $(subst ','\'',$(ALL_CFLAGS)):\
GIT-CFLAGS: .FORCE-GIT-CFLAGS
@FLAGS='$(TRACK_CFLAGS)'; \
- if test x"$$FLAGS" != x"`cat GIT-CFLAGS 2>/dev/null`" ; then \
+ if test x"$$FLAGS" != x"`cat GIT-CFLAGS 2>/dev/null`" -a \
+ -z "$(IGNORE_GIT_CFLAGS)"; then \
echo 1>&2 " * new build flags or prefix"; \
echo "$$FLAGS" >GIT-CFLAGS; \
fi
... and in my config.mak, there is
ifdef DEBUG
ALL_CFLAGS := $(filter-out -O2,$(ALL_CFLAGS))
IGNORE_GIT_CFLAGS = YesPlease
endif
I'm happy now.
Ciao,
Dscho
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