--- gforth/configure.in	1999/06/17 15:32:13	1.54
+++ gforth/configure.in	1999/10/30 15:48:16	1.57
@@ -27,7 +27,7 @@ AM_INIT_AUTOMAKE(gforth,0.4.9-19990617)
 #note that lexicographic ordering bust be heeded.
 #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
 AM_CONFIG_HEADER(engine/config.h)
-AM_CYGWIN32
+#AM_CYGWIN32
 
 AC_ARG_ENABLE(force-reg,
 [  --enable-force-reg	  Use explicit register declarations if they appear in
@@ -192,7 +192,10 @@ case "$host_cpu" in
 		;;
 	i586)
 		machine=386
-		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -mpentium"
+		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
+		CFLAGS_1="$CFLAGS"
+		CFLAGS="$CFLAGS -mpentium"
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
 		if test "${enable_direct_threaded+set}" = "" \
 			-a "${enable_indirect_threaded+set}" = ""
 		then
@@ -202,7 +205,10 @@ case "$host_cpu" in
 		;;
 	i686)
 		machine=386
-		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -mpentium"
+		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
+		CFLAGS_1="$CFLAGS"
+		CFLAGS="$CFLAGS -mpentiumpro"
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
 		if test "${enable_direct_threaded+set}" = "" \
 			-a "${enable_indirect_threaded+set}" = ""
 		then