Hi,
Op Sunday 02 March 2008 10:42:04 schreef Ralf Wildenhues:
> * Remco Bras wrote on Fri, Feb 29, 2008 at 11:37:01PM CET:
> > as part of my work on GNU RPGE, I've had to 'extend' the automake suffix
> > rule for compiling .c files to .o ones.
>
> Why, what limitation made this necessary, and how exactly do your
> changed rules/macros look like? Maybe it can be solved in a different
> way without breakage.
>
It's more of a convenience, being that the .c files are preprocessed using sed
to generate some common function definitions without having to write them all
out by hand. The changed rule is as follows:
.c.o:
$(top_srcdir)/convertors.sh $< && $(CC) $(CFLAGS) $(AM_CFLAGS) -o $@ -c
$< &&
cp $<{.backup,} && rm $<.backup
convertors.sh copies the original .c file to a .c.backup equivalent and
invokes sed a few times on the original. Once done, the cp and rm commands
are meant to restore the original version of the original, so that the
abbreviation can remain in place.
> > In the docs, I could not find a variable
> > containing the default suffix rule for this purpose, so I replaced the
> > entirity of it.
>
> It's hard-coded in automake.in (see the register_language calls).
Interesting.
Thanks,
Remco
