-AC_ARG_ENABLE([ft2232_libftdi],
- AS_HELP_STRING([--enable-ft2232_libftdi], [Enable building support for FT2232 based devices using the libftdi driver, opensource alternate of FTD2XX]),
+AC_ARG_ENABLE([ft2232_libftdi], [], [
+if test $enableval = yes; then
+ AC_MSG_ERROR([The ft2232 driver is deprecated, use --enable-ftdi to build its replacement, or force the old driver with --enable-legacy-ft2232_libftdi])
+fi
+])
+
+AC_ARG_ENABLE([ft2232_ftd2xx], [], [
+if test $enableval = yes; then
+ AC_MSG_ERROR([The ft2232 driver is deprecated, use --enable-ftdi to build its replacement, or force the old driver with --enable-legacy-ft2232_ftd2xx])
+fi
+])
+
+AC_ARG_ENABLE([legacy-ft2232_libftdi],
+ AS_HELP_STRING([--enable-legacy-ft2232_libftdi], [(DEPRECATED) Enable building support for FT2232 based devices using the libftdi library]),