Andy Ross writes:
> Gunnstein Lye wrote:
> > Thanks for the info. Do you really have to build separate binaries
> > of gcc for each target? I thought I could use the same binary for
> > linux (native) and windows (crosscompiling).
> Not to my knowledge.  The code generation is more or less identical,
> but some of the symbol naming rules are different, the decisions as to
> which sections to place symbols into is different, and of course the
> binutils formats are entirely different.
> You *can* do this with cygwin, where the only difference from MinGW is
> the C runtime library.  The compiler supports a -mno-cygwin flag that
> basically turns it into the same toolchain you get with a
> --target=mingw32 build.
> Unfortunately it turns out that cygwin doesn't install these tools
> under the conventional "platform-program" names (e.g. mingw32-gcc), so
> I'm not sure how cygwin users are supposed to use them with a autoconf
> environment which requires those names for cross compiling.  For right
> now, cygwin users are going to have to install or build the mingw
> stuff even though it's redundant.

To invoke the the MingW version of the Cygwin compiler
use gcc -mno-cygwin

You might find it interesting to take a peek into

/lib/gcc-lib  in your Cygwin tree 



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