+AC_ARG_ENABLE(ds390-port,--disable-ds390-port: Excludes the DS390 port)
+echo ds390 >>ports.all
+if test "$enable_ds390_port" = "no"; then
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_DS390, 1)
+else
+ echo ds390 >>ports.build
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_DS390, 0)
+fi
+
+AC_ARG_ENABLE(pic-port,--disable-pic-port: Excludes the PIC port)
+echo pic >>ports.all
+if test "$enable_pic_port" = "no"; then
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_PIC, 1)
+else
+ echo pic >>ports.build
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_PIC, 0)
+fi
+
+AC_ARG_ENABLE(i186-port,--disable-i186-port: Excludes the I186 port)
+echo izt >>ports.all
+if test "$enable_i186_port" = "no"; then
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_I186, 1)
+else
+ echo izt >>ports.build
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_I186, 0)
+fi
+
+AC_ARG_ENABLE(tlcs900h-port,--disable-tlcs900h-port: Excludes the TLCS900H port)
+echo izt >>ports.all
+if test "$enable_tlcs900h_port" = "no"; then
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_TLCS900H, 1)
+else
+ echo izt >>ports.build
+ AC_DEFINE_UNQUOTED(OPT_DISABLE_TLCS900H, 0)
+fi
+
+#remove duplicates
+cat ports.all | uniq >ports
+mv ports ports.all
+cat ports.build | uniq >ports
+mv ports ports.build
+