Sorry - now that I've re-read your post I understand it better.
the Autoconf implementation of libdir is to refrain from expanding this
until "make install" time - so AC_SUBST([libdir]) clashes with that
implementation. If it could be called a bug - that bug would be in
Autoconf, and might be "fixed" by having AC_SUBST have a list of all the
Autoconf-reserved names and rejecting any inconsistent of them.
HTH,
Robert
On Thu, Feb 7, 2013 at 6:02 AM, Werner LEMBERG <w...@gnu.org> wrote:
>
> This is a shy `ping' :-)
>
>
> Werner
>
>
> ----------------------------------------------------------------------
>
>
> > [libtool 2.4.2]
> >
> > Folks,
> >
> >
> > let's assume that someone is doing
> >
> > AC_SUBST([libdir])
> > AC_SUBST([wl])
> > AC_SUBST([hardcode_libdir_flag_spec])
> >
> > and later tries to say
> >
> > libdir = @libdir@
> > wl = @wl@
> > hardcode_libdir_flag_spec = @hardcode_libdir_flag_spec@
> >
> > within a Makefile, as can be done with other such variables. [The
> > idea is to construct a proper `-R' linker argument for a `--libs'
> > option of a `foo-config' file generated at compile time, but this is a
> > different issue.]
> >
> > However, this causes a very unpleasant surprise since the above
> > snippet gets converted to
> >
> > libdir = /foo/bar
> > wl = -Wl,
> > hardcode_libdir_flag_spec = '${wl}-rpath ${wl}$libdir'
> >
> > Note the `$libdir' string which gets interpreted as variable `$l'
> > followed by `ibdir' within a Makefile...
> >
> > Now my questions.
> >
> > . Is it a bug? It should be trivial IMHO to use ${libdir} instead
> > to avoid incorrect Makefile variable expansion. I can imagine
> > that other variables (even in autoconf or automake) are similarly
> > affected.
> >
> > . Is it correct usage? I mean, is there a list of autotools
> > variables which must not be used within a Makefile (after
> > AC_SUBST)?
> >
> > . How can I circumvent the problem with the current libtool version?
> >
> >
> > Werner
>
> _______________________________________________
> https://lists.gnu.org/mailman/listinfo/libtool
>
_______________________________________________
https://lists.gnu.org/mailman/listinfo/libtool
