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-rw-r--r--src/string.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/string.c b/src/string.c
index dc7fdfae8..8a5dd7072 100644
--- a/src/string.c
+++ b/src/string.c
@@ -47,7 +47,6 @@ static mrb_value str_replace(mrb_state *mrb, mrb_value str, mrb_value str2);
#ifdef INCLUDE_ENCODING
static long str_strlen(mrb_state *mrb, mrb_value str, mrb_encoding *enc);
#endif //INCLUDE_ENCODING
-int mrb_block_given_p();
#ifdef INCLUDE_ENCODING
#define is_ascii_string(mrb, str) (mrb_enc_str_coderange(mrb, str) == ENC_CODERANGE_7BIT)
#define is_broken_string(mrb, str) (mrb_enc_str_coderange(mrb, str) == ENC_CODERANGE_BROKEN)