From 4c98bdcb79e51ebd1a3b72b733af7c9b54645ecc Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 20 May 2016 15:30:29 +0000
Subject: io.c: conditionally used functions

* io.c (pipe_atexit): only used on Windows

* io.c (rb_execarg_fixup_v): wrapper only used fork or spawnv is
  available.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55090 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/io.c b/io.c
index 33c2970a46..7e6ca89038 100644
--- a/io.c
+++ b/io.c
@@ -5680,6 +5680,7 @@ pipe_del_fptr(rb_io_t *fptr)
     }
 }
 
+#if defined (_WIN32) || defined(__CYGWIN__)
 static void
 pipe_atexit(void)
 {
@@ -5692,6 +5693,7 @@ pipe_atexit(void)
 	list = tmp;
     }
 }
+#endif
 
 static void
 pipe_finalize(rb_io_t *fptr, int noraise)
@@ -5877,12 +5879,14 @@ popen_exec(void *pp, char *errmsg, size_t errmsg_len)
 }
 #endif
 
+#if defined(HAVE_WORKING_FORK) || defined(HAVE_SPAWNV)
 static VALUE
 rb_execarg_fixup_v(VALUE execarg_obj)
 {
     rb_execarg_parent_start(execarg_obj);
     return Qnil;
 }
+#endif
 
 static VALUE
 pipe_open(VALUE execarg_obj, const char *modestr, int fmode,
-- 
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