Re: where is doc for --host option ?

[Allin C. <cot...@wf...>]

On Sat, 9 May 2009, Ethan Merritt (sfream) wrote:

> On Friday 08 May 2009, Allin Cottrell wrote:
> > I think one benefit of using AC_PROG_CC is simply that it displays
> > help for such compiler-related options in response to configure
> > --help.
>
> It turns out we already have AC_PROG_CC in the gnuplot
> configure.in, yet it doesn't display any information about
> cross-compiling in the help message.  So scratch that theory.

OK, it was a guess, and a wrong one.  My second attempt is that
the provision of the the "host and build" configuration info is a
libtool thing.  I tried the experiment of adding

AC_PROG_LIBTOOL

to gnuplot's configure.in and re-running ./prepare.  This gave the
error "required file `./ltmain.sh' not found".  So I copied
ltmain.sh into place and re-ran ./prepare.  I then got a
configure script that gave the help output, inter alia:

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]

FWIW.

Allin Cottrell