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-rw-r--r--ext/unicorn_http/ext_help.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/ext/unicorn_http/ext_help.h b/ext/unicorn_http/ext_help.h
index 0968080..c87c272 100644
--- a/ext/unicorn_http/ext_help.h
+++ b/ext/unicorn_http/ext_help.h
@@ -52,10 +52,6 @@ static void rb_18_str_set_len(VALUE str, long len)
 #  endif
 #endif /* ! defined(NUM2SIZET) */
 
-#ifndef HAVE_RB_STR_MODIFY
-#  define rb_str_modify(x) do {} while (0)
-#endif /* ! defined(HAVE_RB_STR_MODIFY) */
-
 static inline int str_cstr_eq(VALUE val, const char *ptr, long len)
 {
   return (RSTRING_LEN(val) == len && !memcmp(ptr, RSTRING_PTR(val), len));