diff --git a/Makefile b/Makefile
index 9a2a8b765..c49a328d9 100644
--- a/Makefile
+++ b/Makefile
@@ -80,6 +80,7 @@ endif
 	@echo
 
 shared :
+ifndef NO_SHARED
 ifeq ($(OSNAME), Linux)
 	$(MAKE) -C exports so
 	-ln -fs $(LIBSONAME) $(LIBPREFIX).so
@@ -103,6 +104,7 @@ endif
 ifeq ($(OSNAME), CYGWIN_NT)
 	$(MAKE) -C exports dll
 endif
+endif
 
 tests :
 ifndef NOFORTRAN
diff --git a/Makefile.rule b/Makefile.rule
index 077bf9267..f667c1661 100644
--- a/Makefile.rule
+++ b/Makefile.rule
@@ -45,6 +45,9 @@ VERSION = 0.2.4
 # automatically detected by the the script.
 # NUM_THREADS = 24
 
+# if you don't need generate the shared library, please comment it in.
+# NO_SHARED = 1
+
 # If you don't need CBLAS interface, please comment it in.
 # NO_CBLAS = 1