Compiling relocatable mingw gdc

[Anders F Björklund]

Bill Baxter wrote:
> This is mostly meant for Anders... a continuation of an off-NG mail 
> exchange about trying to build mingw gdc from source.
...
> I was reading the MinGW install instructions from the MinGW site, and 
> they said "runtime and win32 headers are separate".  So I thought maybe 
> I could fix things by downloading the mingw runtime and copying its 
> include,lib,and bin dirs into the toplevel gcc-3.4.5-20060117-1 dir.

I redid the build again on Windows XP, and ran into two things that
I had forgotten all about since the pre-1.0 time when I last did it...

First, I couldn't get the setup to work with MinGW but only in Cygwin
(seems patch is silly). Second, something had hardcoded /usr/include.

My hackaround was to ln -s /mingw/include /usr/include while building,
which probably is totally wrong but I didn't feel like diving into it.

If everything is working alright, I'll package the pre-release up and
put it on the gdcwin site - maybe even with some building instructions.

--anders