Changes to Cross-compiling Tcl between r0 and r1

'''To Windows (x86)'''

$ RC="i586-mingw32msvc-windres" AR=i586-mingw32msvc-ar RANLIB=i586-mingw32msvc-ranlib ./configure --host=i586-mingw32msvc --build=i486-slackware-linux --disable-shared --disable-threads --disable-64bit --disable-symbols --> $ RC="i586-mingw32msvc-windres" AR=i586-mingw32msvc-ar RANLIB=i586-mingw32msvc-ranlib \
   ./configure --host=i586-mingw32msvc --build=i486-slackware-linux --disable-shared \
   --disable-threads --disable-64bit --disable-symbols

Legend

     Only in r0
     Only in r1
     -->      Modified slightly between r0 and r1