reduce symbol visibility in rpatricia.c

There is no need for these functions and global variable
to be visible outside of rpatricia.c, so mark them as
static to avoid potential conflicts with other libraries.

1 files changed, 3 insertions, 3 deletions

diff --git a/ext/rpatricia/rpatricia.c b/ext/rpatricia/rpatricia.c
index 75000e1..ec8c6a3 100644
--- a/ext/rpatricia/rpatricia.c
+++ b/ext/rpatricia/rpatricia.c
@@ -8,9 +8,9 @@
 #include <stdlib.h>
 #include "patricia.h"
 
-VALUE cPatricia;
+static VALUE cPatricia;
 
-void dummy(void) {}
+static void dummy(void) {}
 
 static VALUE
 p_destroy (VALUE self)
@@ -21,7 +21,7 @@ p_destroy (VALUE self)
   return Qtrue;
 }
 
-VALUE
+static VALUE
 p_add (int argc, VALUE *argv, VALUE self)
 {
   int str_len;