--- Makefile.orig	2009-01-19 17:11:00.000000000 +0800
+++ Makefile	2014-05-16 14:36:12.368319209 +0800
@@ -1,4 +1,16 @@
-LIBDIR=/usr/lib
+
+LIBDIR=	%%PREFIX%%/lib/mysql/plugin
+INCDIR=	%%LOCALBASE%%/include/mysql
+PROG=	lib_mysqludf_sys.so
+
+all: lib_mysql_udf.so
+
+lib_mysql_udf.so:
+	$(CC) -fPIC -Wall -I$(INCDIR) -I. -shared lib_mysqludf_sys.c -o $(PROG)
 
 install:
-	gcc -Wall -I/usr/include/mysql -I. -shared lib_mysqludf_sys.c -o $(LIBDIR)/lib_mysqludf_sys.so
+	mkdir -p $(DESTDIR)$(LIBDIR)
+	$(BSD_INSTALL_LIB) $(PROG) $(DESTDIR)$(LIBDIR)
+
+clean:
+	rm -f $(PROG)