- Added correct SONAME to Makefile builds as well

diff --git a/library/Makefile b/library/Makefile
index dbab962..1ecd2ff 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -13,6 +13,8 @@
 # To compile as a shared library:
 # CFLAGS += -fPIC
 
+SONAME=libpolarssl.so.0
+
 DLEXT=so
 # OSX shared library extension:
 # DLEXT=dylib
@@ -50,7 +52,7 @@
 
 libpolarssl.so: libpolarssl.a
 	echo "  LD    $@"
-	$(CC) ${LDFLAGS} -shared -Wl,-soname,$@ -o $@ $(OBJS)
+	$(CC) ${LDFLAGS} -shared -Wl,-soname,$(SONAME) -o $@ $(OBJS)
 
 libpolarssl.dylib: libpolarssl.a
 	echo "  LD    $@"