--- configure.orig	Tue Jan 18 19:53:03 2005
+++ configure	Tue Jan 18 19:56:32 2005
@@ -891,7 +891,7 @@
 if test $debug = "yes"; then
 	CFLAGS="-g -O"
 else
-	CFLAGS="-O3"
+	# no default, left for line numbers
 fi
 CFLAGS="-Wall $CFLAGS"
 export CFLAGS
@@ -1847,7 +1847,7 @@
 fi
 
 
-for ac_hdr in sched.h sys/sched.h machine/cpufunc.h sys/types.h machine/pio.h machine/sysarch.h sys/cpuvar.h
+for ac_hdr in sched.h machine/cpufunc.h sys/types.h machine/pio.h machine/sysarch.h sys/cpuvar.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6