From: WATANABE Hirofumi <eban@...>
Date: 2002-09-13T23:55:12+09:00
Subject: Re: Crosscompiling Ruby on Linux for Win

Hi,

Martin Kahlert <martin.kahlert@keksy.muc.infineon.com> writes:

> I naively tried to cross compile a Windows version on my linux box.
> (Yesterday's snapshot.tar.gz)
> 
> $ ./configure --host=i586-pc-mingw32
> ....
> checking whether setpgrp takes no argument... \
>     configure: error: cannot check setpgrp when cross compiling
> 
> setpgrp is according to my man page a POSIX function, and thus it
> is probably not available on Windows at all.
> 
> So what should I do here?
> Is it possible to cross compile Ruby at all this way?

My building script:
  % CFLAGS=-Os \
  CC="i686-pc-cygwin-gcc -mno-cygwin" \
  ac_cv_func_getpgrp_void=yes \
  ac_cv_func_setpgrp_void=yes \
  ac_cv_c_bigendian=no \
  ac_cv_sizeof_long_long=8 \
  ac_cv_func_memcmp_clean=yes \
  ac_cv_func_memcmp_working=yes \
  ./configure \
  --target=i386-mingw32 \
  --host=i686-pc-cygwin \
  --build=i586-pc-linux-gnu \
  --includedir=/usr/local/mingw/include \
  --enable-shared \
  --enable-tcltk_stubs \
  --with-tcllib=tclstub83 \
  --with-tklib=tkstub83 \
  --with-opt-dir=/usr/local/mingw
  % make
  % make install DESTDIR=$HOME/dist/i386-mingw32

> Another question: How do i compile Extensions (on Windows natively)
> using mingw when i use the one click installer?

It is possible to exchange import libraries.
Or, use forwarding DLL.
  http://www.ruby-lang.org/~eban/ruby/binaries/mingw/mingw32-ruby16-to-mswin32-ruby16.zip

-- 
eban