configure m4 problem

[Niels Möller]

Ozkan Sezer <sezeroz at gmail.com> writes:

> I mean something like:
>
> --- configure.in.orig
> +++ configure.in
> @@ -3077,7 +3077,9 @@ if test $found_asm = yes; then
>    GMP_PROG_M4
>    GMP_M4_M4WRAP_SPURIOUS
>  else
> -  M4=m4-not-needed
> +  if test -z "$M4"; then
> +     M4=m4-not-needed
> +  fi
>  fi
>
>  # Only do the GMP_ASM checks if there's a .S or .asm wanting them.

Committed. I tested the following:

  ./configure none-none-none
  => "M4 = m4-not-needed" in Makefile

  M4=foo ./configure none-none-none
  => "M4 = foo" in Makefile
  
  M4=foo ./configure
  => "M4 = foo" in Makefile

The test in configure.in makes no difference between M4 being undefined,
and M4 defined but with an empty value, i.e., M4="" ./configure, but I
don't think that is a problem.

Regards,
/Niels

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