Re: gcc precompiled headers

Well yeah... I wasn't worried about optimizing an extra 20 seconds out
of my busy schedule.  I was just curious as to why it didn't work, and
if anyone had gotten it to.


On 8/14/06, David Wilson <[email protected]> wrote:
> A couple years ago, I tried and tried to get PCH to work with C++ and
> never figured it out. That was pre gcc-4, though. Things may have
> improved now.
>
> But really, ROM doesn't take long at all to compile on modern hardware
> and I don't think using pch would result in any significant gains.
>
> -David
>
> On 8/14/06, Michael Barton <[email protected]> wrote:
> > Is anyone using pre-compiled headers with GCC?  It seems like this
> > would be nice to apply to merc.h.  I tried doing this in my Makefile:
> >
> > rom: merc.h.gch $(O_FILES)
> >         $(CC) $(L_FLAGS) -o rom $(O_FILES) $(LIBS)
> >
> > merc.h.gch: merc.h
> >         $(CC) $(C_FLAGS) merc.h
> >
> > merc.h.gch is created, and it compiles fine, but there doesn't seem to
> > be any measurable increase in compilation speed (i.e. using time(1)).
> > Makes me think it is probably silently failing to use the pre-compiled
> > version.
> >
> > --Palrich.
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