Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1/libtool00.sed

+s/~/!/g
+s/ln -s/cp -fp/g
+/^build_libtool_need_lc/s/=yes/=no/
+s/^.*X-lc.*continue.*$$/\#&/
+s/^.*X-lm.*continue.*$$/\#&/
+#s/pic_flag="/& -D_DLL -D_BUILD_DLL/
+#s/export_dynamic_flag_spec="/&\${wl}--export-all-symbols /
+#s/export_dynamic=no/export_dynamic=yes/g
+s/versuffix="-$major"/versuffix="$major"/
+s/--no-undefined/--allow-shlib-undefined/
+/^allow_undefined_flag/s/unsupported/--allow-shlib-undefined/
+/^deplibs_check_method/s/".*"/"pass_all"/
+/^soname_spec/s|/-/|//|g
+/^soname_spec=/s/libname/dllname/
+/^\trelease)/i\
+        dllname)\
+          dllname="$arg"\
+          prev=\
+          continue\
+          ;;
+/^[ ]*-release)/i\
+         -dllname)\
+        prev=dllname\
+        continue\
+        ;;\
+
+s/-pc-cygwin/-pc-mingw32/g
+s/pwd/pwd.sh/g
+s/-Wl,-e,_DllMain/-shared &/g
+/versuffix="$major"/a\
+          if test "$versuffix" = 0; then\
+                versuffix=\
+          fi
+s/-DDLL_EXPORT/& /g