configure support for regnual

ChangeLog

@@ -1,5 +1,7 @@
 2012-05-22  Niibe Yutaka  <gniibe@fsij.org>
 
+	* src/configure (../regnual/sys.h): Create symblic link.
+
 	* src/usb_ctrl.c: Rename (was: usb_prop.c).
 
 	* regnual/types.h, regnual/sys.c, regnual/regnual.ld: New.

src/configure

@@ -135,6 +135,7 @@ fi
 BOARD_DIR=../boards/$target
 if test -d $BOARD_DIR; then
   echo "Configured for target: $target"
+  TARGET_LOWER=`echo $target | tr '[:upper:]_' '[:lower:]-'`
 else
   echo "Unsupported target \`$target'" >&2
   exit 1
@@ -218,6 +219,8 @@ else
   echo "CERT.3 Data Object is not supported"
 fi
 
+ln -sf sys-$TARGET_LOWER.h ../regnual/sys.h
+
 sed -e "s%@BOARD_DIR@%$BOARD_DIR%" \
     -e "s%@DEBUG_MAKE_OPTION@%$DEBUG_MAKE_OPTION%" \
     -e "s%@PINPAD_MAKE_OPTION@%$PINPAD_MAKE_OPTION%" \