diff --git a/test/Makefile b/test/Makefile
index 1362890..512702f 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -39,9 +39,10 @@ all: tools $(BENCHKISS) $(SELFTEST) $(BENCHFFTW) $(TESTREAL) $(TESTKFC)
 tools:
 	cd ../tools && make all
 
-CFLAGS=-Wall -O3 -pedantic -march=pentiumpro -ffast-math -fomit-frame-pointer   -I.. -I../tools
+# for x86 pentium+ machines , these flags work well
+#CFLAGS=-Wall -O3 -pedantic -march=pentiumpro -ffast-math -fomit-frame-pointer   -I.. -I../tools
 # If the above flags do not work, try the following
-#CFLAGS=-Wall -O3 -I.. -I../tools
+CFLAGS=-Wall -O3 -I.. -I../tools
 
 $(SELFTEST): $(SELFTESTSRC) $(SRCFILES)
 	$(CC) -o $@ $(CFLAGS) $(TYPEFLAGS) -lm $+