From: nobu.nokada@...
Date: 2002-09-13T11:16:16+09:00
Subject: Re: RubyInline and CrossPlatform concerns (was: Windows XP : RubyInline 1.0.4 Released!)

Hi,

At Fri, 13 Sep 2002 02:40:47 +0900,
Ryan Davis wrote:
> >     tmpdir = ENV['TMP'] + "/.ruby_inline"
> 
> I've left /tmp in favor of the home directory. Is there something like
> ENV['HOME'] on win?

As to NT series, HOMEDRIVE and HOMEPATH are set.  It may be
better to set HOME to %HOMEDRIVE%%HOMEPATH%, %USERPROFILE%, or
"My Documents" directory, in NtInitialize().

> >       # Compiling
> >       cmd = "#{cc} -o #{so_name} #{src_name} #{libs}".gsub('/','\\') +
> >         " -link /INCREMENTAL:no /EXPORT:Init_#{mod_name}"
> >       `#{cmd}`
> >     end
> 
> Why didn't rbconfig add the -link line that you have above? I'm not
> willing or able to accept this change as-is, because that _should_ be
> part of your rbconfig setup, if it isn't, then that wasn't the way
> ruby was built and it is suspect. This change makes this section no
> longer platform independent. This is further tangled by the gsub, as
> if the -link section did come from rbconfig, then the gsub would mess
> it up.

Extension library may have exported symbols other than
initializer.  So mkmf.rb uses .def file rather than linker
option.  You could do:

  system(Config::CONFIG["ruby_install_name"], "-rmkmf", "-e", "create_makefile('#{mod_name}')")

> Finally, the ".gsub('/', '\\')" is also not platform independent. I'm
> frustrated that it's even necessary. As I understand it, perl just
> automatically changes things like that (at least on open and other
> obvious file references). Python has the very useful 'os' module. Is
> this something that we need? How should I deal with this?

This isn't `open' nor `obvious file references'.

How about this?

class << File
  if File::ALT_SEPARATOR
    def extern_path(f)
      f.gsub(SEPARATOR, ALT_SEPARATOR)
    end
  else
    alias extern_path dup
  end
end
cmd = "#{cc} -o #{so_name} #{src_name} #{File.extern_path(libs)}"


-- 
Nobu Nakada