diff --git a/.gitignore b/.gitignore
index 9c1b910..9d22eb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-dispasstest
+*.o
+*.so
diff --git a/Makefile b/Makefile
index 8f6a1e6..9a75ffc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,4 @@
-dispasstest: dispass.c
-	gcc -lcrypto dispass.c -o dispasstest
+CFLAGS = -lcrypto -fPIC
+
+libdispass.so: dispass.o
+	$(CC) $(CFLAGS) -shared -o libdispass.so $^