nobu	2018-08-15 21:53:45 +0900 (Wed, 15 Aug 2018)

  New Revision: 64379

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64379

  Log:
    spec/ruby/optional/capi/ext/io_spec.c: guard unreachable code

  Modified files:
    trunk/spec/ruby/optional/capi/ext/io_spec.c
Index: spec/ruby/optional/capi/ext/io_spec.c
===================================================================
--- spec/ruby/optional/capi/ext/io_spec.c	(revision 64378)
+++ spec/ruby/optional/capi/ext/io_spec.c	(revision 64379)
@@ -144,8 +144,10 @@ NORETURN(VALUE io_spec_rb_io_wait_readab https://github.com/ruby/ruby/blob/trunk/spec/ruby/optional/capi/ext/io_spec.c#L144
 
 VALUE io_spec_rb_io_wait_readable(VALUE self, VALUE io, VALUE read_p) {
   int fd = io_spec_get_fd(io);
+# if !SET_NON_BLOCKING_FAILS_ALWAYS
   char buf[RB_IO_WAIT_READABLE_BUF];
   int ret, saved_errno;
+# endif
 
   if (set_non_blocking(fd) == -1)
     rb_sys_fail("set_non_blocking failed");
@@ -173,6 +175,8 @@ VALUE io_spec_rb_io_wait_readable(VALUE https://github.com/ruby/ruby/blob/trunk/spec/ruby/optional/capi/ext/io_spec.c#L175
   }
 
   return ret ? Qtrue : Qfalse;
+# else
+  UNREACHABLE;
 # endif
 }
 #endif

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