diff --git a/Makefile b/Makefile
index 5676245..11aac94 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,10 @@
+FC=gfortran
 optimize=-O
-FFLAGS=$(optimize) -ffpe-trap=overflow,invalid,denormal
+FFLAGS=$(optimize) -ffpe-trap=overflow,invalid,denormal -ffixed-line-length-none
 CFLAGS=$(optimize)
 #if SAC library has been installed, uncomment the next two lines
-#CFLAGS=$(optimize) -DSAC_LIB
-#SACLIB=-L$(SACHOME)/lib -lsac -lsacio
+CFLAGS=$(optimize) -DSAC_LIB
+SACLIB=-L$(SACHOME)/lib -lsac -lsacio
 #
 
 SUBS = fft.o Complex.o sacio.o