diff --git a/lib/rb/ext/compact_protocol.c b/lib/rb/ext/compact_protocol.c
index 3caa500..6c0123d 100644
--- a/lib/rb/ext/compact_protocol.c
+++ b/lib/rb/ext/compact_protocol.c
@@ -20,8 +20,8 @@
 #include <ruby.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <constants.h>
-#include <struct.h>
+#include "constants.h"
+#include "struct.h"
 #include "macros.h"
 
 #define LAST_ID(obj) FIX2INT(rb_ary_pop(rb_ivar_get(obj, last_field_id)))
@@ -458,7 +458,7 @@
     
     if (modifier == 0) {
       // not a delta. look ahead for the zigzag varint field id.
-      LAST_ID(self);
+      (void) LAST_ID(self);
       field_id = read_i16(self);
     } else {
       // has a delta. add the delta to the last read field id.
diff --git a/lib/rb/ext/struct.c b/lib/rb/ext/struct.c
index c253591..db78efa 100644
--- a/lib/rb/ext/struct.c
+++ b/lib/rb/ext/struct.c
@@ -17,8 +17,8 @@
  * under the License.
  */
 
-#include <struct.h>
-#include <constants.h>
+#include "struct.h"
+#include "constants.h"
 #include "macros.h"
 
 #ifndef HAVE_STRLCPY
@@ -40,7 +40,12 @@
       *(dst - 1) = '\0';
     return n + strlen (src);
 }
-
+#else
+/*
+   Ruby 1.9.x includes the OpenBSD implementation of strlcpy.
+   See missing/strlcpy.c in Ruby 1.9 source
+ */
+extern size_t strlcpy(char *, const char *, size_t);
 #endif
 
 VALUE thrift_union_class;