Re: Building Emacs on two different OSes from a shared directory

[Eli Zaretskii]

> Date: Mon, 28 Jan 2013 10:38:55 +0100
> From: Dani Moncayo <address@hidden>
> Cc: Emacs development discussions <address@hidden>
> 
> AFAIK, the build on MS-Windows is done entirely under the "nt/"
> subdirectory which is specific to that platform.

The Windows build is _started_ in the nt/ directory.  But then the
Makefiles recurse into the other directories: src, lib, lib-src, etc.,
and build files there as well.

It is however, true that compiled files are placed in subdirectories,
like nt/oo/i386, src/oo/i386, etc. -- different set of directories for
each architecture and optimization level.  So compiling on Unix will
not overwrite Windows object files and executables.