dnl option parsing for optional features
opt_multibyte=yes
opt_static_libs=yes
-opt_shared_libs=yes
+opt_shared_libs=no
AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)