kazu	2018-02-05 21:34:37 +0900 (Mon, 05 Feb 2018)

  New Revision: 62229

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62229

  Log:
    Fix undefined behavior

  Modified files:
    trunk/tool/m4/ruby_check_va_copy.m4
Index: tool/m4/ruby_check_va_copy.m4
===================================================================
--- tool/m4/ruby_check_va_copy.m4	(revision 62228)
+++ tool/m4/ruby_check_va_copy.m4	(revision 62229)
@@ -14,9 +14,11 @@ conftest(int n, ...) https://github.com/ruby/ruby/blob/trunk/tool/m4/ruby_check_va_copy.m4#L14
     va_start(ap, n);
     CONFTEST_VA_COPY(ap2, ap);
     for (i = 0; i < n; i++) if ((int)va_arg(ap, int) != n - i - 1) abort();
+    va_end(ap);
     CONFTEST_VA_COPY(ap, ap2);
     for (i = 0; i < n; i++) if ((int)va_arg(ap, int) != n - i - 1) abort();
     va_end(ap);
+    va_end(ap2);
 }
 int
 main()

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