diff -puNr dev86-0.16.17/bootblocks/Makefile dev86-0.16.17.new/bootblocks/Makefile
--- dev86-0.16.17/bootblocks/Makefile	2004-01-24 11:55:38.000000000 +0100
+++ dev86-0.16.17.new/bootblocks/Makefile	2008-03-17 10:36:24.000000000 +0100
@@ -1,6 +1,6 @@
 
 HOSTCC=cc
-HOSTCCFLAGS=-O
+HOSTCCFLAGS=
 BCC=bcc
 AS86=as86
 
diff -puNr dev86-0.16.17/makefile.in dev86-0.16.17.new/makefile.in
--- dev86-0.16.17/makefile.in	2004-10-02 15:00:53.000000000 +0200
+++ dev86-0.16.17.new/makefile.in	2008-03-17 10:36:13.000000000 +0100
@@ -42,7 +42,7 @@ WALL  =-Wall -Wtraditional -Wshadow -Wid
 WALL  =-Wall -Wstrict-prototypes
 
 CC	=%CC%
-CFLAGS	=$(GCCFLAG) $(WALL) -O2 -g
+CFLAGS	=$(GCCFLAG) $(WALL) -fno-strict-aliasing
 #endif
 
 #ifndef GNUMAKE