From: Nikolai Weibull <now@...>
Date: 2011-11-17T16:18:33+09:00
Subject: [ruby-core:41093] Re: [ruby-core:41092] Re: Why doesn’t mkmf’s have_macro add a HAVE_X to $defs?

On Thu, Nov 17, 2011 at 07:30, Nobuyoshi Nakada <nobu@ruby-lang.org> wrote:

> At Thu, 17 Nov 2011 03:24:31 +0900,
> Nikolai Weibull wrote in [ruby-core:41079]:
>> Why doesn't mkmf's have_macro add a HAVE_X to $defs if the macro is defined?

> You can simply use "#ifdef X". ��Why do you need a macro just
> tells if another macro is defined?

True, but I wanted to simplify my checks for rb_long2int, which can be
either a macro or a function.  I guess

#if defined(HAVE_RB_LONG2INT) || defined(rb_long2int)

isn���t as bad as I initially thought.