normal	2018-05-22 10:58:47 +0900 (Tue, 22 May 2018)

  New Revision: 63487

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63487

  Log:
    string.c: MAYBE_UNUSED to suppress warnings for `old`
    
    Building with HAVE_MALLOC_USABLE_SIZE currently makes
    SIZED_REALLOC_N ignore the old size arg.

  Modified files:
    trunk/string.c
Index: string.c
===================================================================
--- string.c	(revision 63486)
+++ string.c	(revision 63487)
@@ -7035,7 +7035,7 @@ tr_trans(VALUE str, VALUE src, VALUE rep https://github.com/ruby/ruby/blob/trunk/string.c#L7035
 		if (enc != e1) may_modify = 1;
 	    }
 	    if ((offset = t - buf) + tlen > max) {
-		size_t old = max + termlen;
+		size_t MAYBE_UNUSED(old) = max + termlen;
 		max = offset + tlen + (send - s);
 		SIZED_REALLOC_N(buf, char, max + termlen, old);
 		t = buf + offset;
@@ -7108,7 +7108,7 @@ tr_trans(VALUE str, VALUE src, VALUE rep https://github.com/ruby/ruby/blob/trunk/string.c#L7108
 		if (enc != e1) may_modify = 1;
 	    }
 	    if ((offset = t - buf) + tlen > max) {
-		size_t old = max + termlen;
+		size_t MAYBE_UNUSED(old) = max + termlen;
 		max = offset + tlen + (long)((send - s) * 1.2);
 		SIZED_REALLOC_N(buf, char, max + termlen, old);
 		t = buf + offset;

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