successful build cross and native mingw32-gcc

[Antonio Mendes de Oliveira Neto]

cross mingw32
../configure --prefix=/usr/local/cross-mingw32 --host=i586-pc-linux-gnu --ta
rget=i386-pc-mingw32

native mingw32
../configure --prefix=/gcc-mingw32 --host=i386-pc-mingw32 --target=i386-pc-m
ingw32 --build=i586-pc-linux-gnu

thanks