Reviving and oldish bug report (and CC:ing the Automake list now).
Reference: <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8665>
I wrote:
>
> A relevant excerpt [from the manual]:
>
> You can add your own variables, so strings of your own choice are shown.
> The following snippet shows how you would define your own equivalent of
> AM_V_GEN:
> pkg_verbose = $(pkg_verbose_$(V))
> pkg_verbose_ = $(pkg_verbose_$(AM_DEFAULT_VERBOSITY))
> pkg_verbose_0 = @echo PKG-GEN $@;
> foo: foo.in
> (pkg_verbose)cp $(srcdir)/foo.in $@
Jack Kelly replied:
>
> Yes. I think it would be nice to make a Makefile.am declaration or m4
> macro to generate this,
To which I replied:
>
> I agree. The above idiom seems easy enough to automatize. I'm not sure
> what the best syntax for this new feature would be, tough.
It could be something as simple as this maybe:
AM_QUIET_PKG = PKG-GEN
which would output in the generated Makefile.in:
AM_V_PKG = $(pkg_verbose_@AM_V@)
am__V_PKG_ = $(pkg_verbose_@AM_DEFAULT_V@)
am__V_PKG_0 = @echo $(AM_QUIET_PKG) $@;
so that an usage like:
foo: foo.in
$(AM_V_PKG)cp $(srcdir)/foo.in $@
in Makefile.am will produce at runtime:
$ make foo V=0
PKG-GEN foo
$ make foo V=1
cp ./foo.in foo
WDYT?
Regards,
Stefano
