make ruby bindings compile with newer ruby versions ... fix for #217

[rrdtool-all.git] / program / bindings / ruby / main.c

diff --git a/program/bindings/ruby/main.c b/program/bindings/ruby/main.c
index e911d9a15324050202117cb4c1ffce36b01180ea..07a9cd2a11c7305fc3410c0efb2790f7dd46967b 100644 (file)
--- a/program/bindings/ruby/main.c
+++ b/program/bindings/ruby/main.c
@@ -27,7 +27,7 @@ string_arr string_arr_new(VALUE rb_strings)
     int i;
    
     Check_Type(rb_strings, T_ARRAY);
-    a.len = RARRAY(rb_strings)->len + 1;
+    a.len = RARRAY_LEN(rb_strings) + 1;
 
     a.strings = malloc(a.len * sizeof(char *));
     a.strings[0] = "dummy";     /* first element is a dummy element */