From: Dominik Bathon <dbatml@...>
Date: 2006-08-29T00:56:40+09:00
Subject: Re: error compiling with rubyinline

On Mon, 28 Aug 2006 16:45:18 +0200, OliverMarchand  
<oliver.marchand@gmail.com> wrote:

> Dear Rubyists,
>
> I am encountering trouble compiling with RubyInline. Inside rubyinline
> there is a construction of the command to create the library file:
>
> cmd = "#{Config::CONFIG['LDSHARED']} #{flags}
> #{Config::CONFIG['CFLAGS']} -I #{hdrdir} -o #{so_name} #{src_name}
> #{libs}" [line 368 in inline.rb]
>
> On my machine/installation this command fails with:
>
> Building /users/obroeker/.ruby_inline/Inline_Example_58ed.so with
> '/apps/gnu/bin/ld -shared  -g -O2 -I
> /users/obroeker/lib/ruby/1.8/mips-irix6.5 -o
> /users/obroeker/.ruby_inline/Inline_Example_58ed.so
> /users/obroeker/.ruby_inline/Inline_Example_58ed.c '
> /users/obroeker/.ruby_inline/Inline_Example_58ed.c: file not
> recognized: File format not recognized
>
> which seems logical to me, because the construction of the command
> includes the src_name of the file and thus assumes that the whole
> compilation is also done in this command. If I would have written this,
> I would have had two parts: one for compiling, one for linking. Can it
> be done in one step with ld? Must be so, otherwise the code would have
> never worked. Unfortunately I have found no way by hand to do all at
> the same time.

Which platform are you on?

RubyInline (and also my Ruby2CExtension) assumes that  
Config::CONFIG["LDSHARED"] is set to something like "gcc -shared", e.g. on  
my system:

>> Config::CONFIG["LDSHARED"]
=> "i686-pc-linux-gnu-gcc -shared"

If that is the case, then compilation in one step works. But as you show,  
this doesn't seem to always be the case.

So again, what platform are you on and did you supply any unusual options  
when building Ruby.


Dominik