On Wed, 2003-11-26 at 11:41, Gary V. Vaughan wrote: > Scott James Remnant wrote: > | This means if you use AC_FOO in m4/libtool.m4 then the first file that > | happens to AC_DEFUN that will get included, even though it's defined > | with m4_define in that same file. > > Gah! That has got to be a bug!! Otherwise libtool.m4 will be slowly crushed > under the weight of its old releases. > It stops us changing our AC_DEFUNs to m4_defines, yes. It wouldn't stop us removing old macros, because we'd remove the calls to them too one hopes.
> A better algorithm would be to use an existing AC_FOO macro (howsoever it is > defined) in preference to pulling in a new file of macros and all of its > dependencies? > The problem is that aclocal doesn't know about m4_define, yes. > | So in summary, to stop this madness, we need to either change the > | definition of the above macro list from m4_define to AC_DEFUN or rename > | the macros and then restore the definition of AC_PROG_EGREP even if it's > | just a hack like this: > > I have been wanting to split libtool.m4 up into several files for a while to > help maintenance, and maybe reduce the size of aclocal.m4 for some of our > users. Now that libtoolize installs libtool.m4 and ltdl.m4 if they are used, > the trick might be to only show aclocal the local (libtoolize installed) > libtool macros. I think we should: > > ~ 1: remove $prefix/share/aclocal/l(ibtoo|td)l.m4 of old releases at install > ~ time > ~ 2: keep copies of the latest versions only in $prefix/share/libtool/m4 > ~ 3: maybe we need a new $prefix/share/aclocal/ltcompat.m4 with stubs for > ~ the macros you list above to keep aclocal happy? > We wouldn't need the stubs if aclocal could only see one libtool.m4. Yet again I wish that Autoconf would learn how to keep its own macros in order, and didn't need a tool from Automake to do it for it! The true way to fix this is to add AC_MACRO_DIR to Autoconf, and allow it to source files in that directory the same way it does its own macro library. No more stuffing everything in aclocal.m4. But I digress. Scott -- Have you ever, ever felt like this? Had strange things happen? Are you going round the twist?
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