Connect the debug driver to the build system. It has always lived only in

CVS and was not to be compiled by 'make'. However, it may serve as a template
for new drivers. Therefore add it to Makefile.am to have it in the
distribution. Note that it will only get compiled if explicitly given to
configure or if '--enable-debug' is used with '--drivers=all'.

acinclude.m4

@@ -23,8 +23,9 @@ AC_ARG_ENABLE(drivers,
 	drivers=[bayrad,CFontz,CFontz633,curses,CwLnx,glk,lb216,lcdm001,MtxOrb,pyramid,text])
 
 allDrivers=[bayrad,CFontz,CFontz633,CFontzPacket,curses,CwLnx,ea65,EyeboxOne,g15,glcdlib,glk,hd44780,i2500vfd,icp_a106,imon,imonlcd,IOWarrior,irman,irtrans,joy,lb216,lcdm001,lcterm,lirc,lis,MD8800,mdm166a,ms6931,mtc_s16209x,MtxOrb,mx5000,NoritakeVFD,picolcd,pyramid,sed1330,sed1520,serialPOS,serialVFD,shuttleVFD,sli,stv5730,SureElec,svga,t6963,text,tyan,ula200,xosd]
-
-drivers=`echo $drivers | sed -e 's/,/ /g'`
+if test "$debug" = yes; then
+	allDrivers=["${allDrivers},debug"]
+fi
 
 dnl replace special keyword "all" in a secure manner
 drivers=[" $drivers "]
@@ -131,6 +132,10 @@ dnl				else
 			DRIVERS="$DRIVERS CwLnx${SO}"
 			actdrivers=["$actdrivers CwLnx"]
 			;;
+		debug)
+			DRIVERS="$DRIVERS debug${SO}"
+			actdrivers=["$actdrivers debug"]
+			;;
 		ea65)
 			DRIVERS="$DRIVERS ea65${SO}"
 			actdrivers=["$actdrivers ea65"]