gtkglextmm build question under Win32

[Benoît Touron <b touron citb bull net>]

Hello

I tried to compile gtkglextmm under Win32,  using MinGW 3.1 + gcc 3.4 
and MSYS 1.1 without success.
configure works, but make does not.
gcc aborts with the error "Invalid argument".
The same happens for MinGW 3.2.

If I use cygwin as a shell, changing the PATH to use gcc-mingw instead 
of gcc-cygwin, it works.

Any idea ?

Thanks
Ben