--- make/include_GCC.mk.org	2015-03-04 16:55:16.173557823 +0800
+++ make/include_GCC.mk	2015-03-04 16:53:43.575015511 +0800
@@ -12,7 +12,7 @@
 #ANSI_CFLAGS += -Wextra
 #ANSI_CFLAGS += -Wall
 
-CFLAGS   =  -O2  -Wno-format -Wno-nonnull -std=c99
+CFLAGS   =  -O2  -Wno-format -Wno-nonnull -std=c99 -Wa,--noexecstack
 FCFLAGS  = -module ./  # ifort
 #FCFLAGS  = -J ./  -fsyntax-only  #gfortran
 PASFLAGS  = x86-64