[GCC-XML]Interoperability with gcc/mingw question

[Brad King]

> > ./gccxml --gccxml-compiler "gcc" --gccxml-cxxflags "-mno-cygwin" \
> >          source.cpp -fxml=source.xml
>
> In both a Windows cmd shell and bash under cygwin, this gives:
> Compiler "gcc" is not supported by GCC_XML.
> Could not determine GCCXML_FLAGS setting.

This is because you're using the windows installer of GCC-XML.  That build
is for windows compilers, and it doesn't understand cygwin paths.  If you
build GCC-XML from source in cygwin, it should work fine (you can still
use the pre-compiled gccxml_cc1plus that is available on the download
page).

-Brad