Re: YYSTYPE_IS_TRIVIAL

[Paul Eggert]

> From: Akim Demaille <address@hidden>
> Date: 24 Apr 2002 12:53:18 +0200
> 
> Autoreconf does (now) the following:
> 
> 1. aclocal to make tracing faithful
> 2. autoconf --trace 
>    to see if libtool, automake, autoheader and gettext are used.
> 3. gettextize
> 4. libtoolize
> 5. aclocal (3 & 4 may have installed new local m4 files)
> 6. autoconf
> 7. autoheader
> 8. automake
> 
> The problem is that at point 1., we already have the right aclocal.m4:
> the gettext macros are found in /usr/*/share/alocal/ by aclocal, which
> pastes them into aclocal.m4.
> 
> Then, and point 5, autoreconf sees it is creating the same aclocal.m4
> again, so it keeps the old one, to avoid relaunching autoconf etc.
>
> But then, when automake is run, the Makefiles have dependencies for
> aclocal.m4 which point to the *local* copies of the gettext macros,
> now installed in m4/.

OK, how about if you insert the following step after step 5:

  touch -m -r aclocal.m4 `ls -t aclocal.m4 m4/*.m4 | sed '/aclocal.m4/q'`

This is a bit of a hack, but it should prevent aclocal.m4 from
appearing to be older than its inputs.

Another possibility is to ask for a gettextize option that preserves
the dates when copying m4 files from .../share/aclocal/*.m4 into
m4/*.m4.