diff --git a/src/Makefile.in b/src/Makefile.in
index c6a154f..1da9162 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -1,7 +1,7 @@
 .SUFFIXES: .c .lo
 
 COMPILE = $(CC) $(CFLAGS) -fPIC
-INC_PATH = -I/usr/local/include
+INC_PATH = -Iinclude -I/usr/local/include
 LIB_PATH = $(LIBS) -lfastcommon 
 TARGET_LIB = $(TARGET_PREFIX)/$(LIB_VERSION)
 
diff --git a/src/include/sf b/src/include/sf
new file mode 120000
index 0000000..a96aa0e
--- /dev/null
+++ b/src/include/sf
@@ -0,0 +1 @@
+..
\ No newline at end of file