updates for watcom optimization flags
diff --git a/Makefile.os2 b/Makefile.os2
index 5ae8616..9cc14ed 100644
--- a/Makefile.os2
+++ b/Makefile.os2
@@ -28,7 +28,7 @@ INCPATH+= -Iinclude
LIBM = SDL2libm.lib
TLIB = SDL2test.lib
LIBS = mmpm2.lib $(LIBM)
-CFLAGS = -bt=os2 -d0 -q -bm -5s -fp5 -fpi87 -sg -oteanbmier -ei
+CFLAGS = -bt=os2 -d0 -q -bm -5s -fp5 -fpi87 -sg -oeatxhn -ei
# max warnings:
CFLAGS+= -wx
# newer OpenWatcom versions enable W303 by default