diff --git a/regcomp.c b/regcomp.c
index afb8e1cdc4..c12471ca8c 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -50,6 +50,7 @@ onig_set_default_case_fold_flag(OnigCaseFoldType case_fold_flag)
 static unsigned char PadBuf[WORD_ALIGNMENT_SIZE];
 #endif
 
+#if 0
 static UChar*
 str_dup(UChar* s, UChar* end)
 {
@@ -64,6 +65,7 @@ str_dup(UChar* s, UChar* end)
   }
   else return NULL;
 }
+#endif
 
 static void
 swap_node(Node* a, Node* b)
diff --git a/regexec.c b/regexec.c
index 2c16dafda5..2587cd9397 100644
--- a/regexec.c
+++ b/regexec.c
@@ -3885,8 +3885,8 @@ onig_search_gpos(regex_t* reg, const UChar* str, const UChar* end,
   ptrdiff_t r;
   UChar *s, *prev;
   OnigMatchArg msa;
-  const UChar *orig_start = start;
 #ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
+  const UChar *orig_start = start;
   const UChar *orig_range = range;
 #endif