bug#51965: [PATCH] Pass options from make to configure

[Gregory Heytings]

> > A 'make' in a repository clone builds Emacs with the default 
> > configuration options.  It would be useful if those who want to build 
> > Emacs with other configuration options they already know could do that 
> > without going through the three-step ./autogen.sh; ./configure 
> > <options>; make.  Patch attached, with which it becomes possible to 
> > just say e.g.:
> >
> > make configure=--with-x-toolkit=lucid
>
> That sounds useful -- but if we add this, perhaps the normal Makefile 
> should also work this way?  That would be useful when doing bootstraps 
> with new configure options, which currently take two runs through 
> configure, which is a bore.  I.e.,
>
> make configure=--with-x-toolkit=lucid bootstrap

Indeed, that makes sense.

I attach a patch with which it is possible to say, with both the 
GNUmakefile or the Makefile:

make bootstrap configure=--with-x-toolkit=lucid

and, to go back to the default configuration:

make bootstrap configure=default

Pass-options-from-make-to-configure-through-a-variab.patch
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