diff --git a/Makefile b/Makefile
index 87e8ff6..8a3df60 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,16 @@
-IRPF90 = irpf90 -DMPI#-a -d 
-IRPF90 = irpf90 -DMPI#-a -d 
-FC     = mpif90 -xT
+# MPI-ifort
+IRPF90 = irpf90 -DMPI #-a -d 
+FC     = mpif90 -static-intel -static-libgcc -xT
 FCFLAGS= -O3 -g
 
-#FC     = gfortran -g -ffree-line-length-none
-#FCFLAGS=
+# Gfortran
+#FC     = gfortran -ffree-line-length-none -static-libgcc -static
+#FCFLAGS= -O3 -ffast-math -L ~/QCIO/lib
+
+# Mono
+IRPF90 = irpf90
+FC     = ifort -static-intel -static-libgcc 
+FCFLAGS= -O3 -axP 
 
 SRC=
 OBJ=