From 923d57b525f5955d1f49854dbeb320cf6db74e64 Mon Sep 17 00:00:00 2001
From: Alexandre Oliva <oliva@adacore.com>
Date: Sat, 10 May 2025 01:26:38 -0300
Subject: [PATCH] vxworks: libstdc++: include ioLib.h for dup()

vxworks's dup function is not declared in unistd.h, but c++23/print.cc
expects to be able to call it if unistd.h is available.  On vxworks,
the function is only declared in ioLib.h, so arrange to include it.


for  libstdc++-v3/ChangeLog

	* src/c++23/print.cc [__VXWORKS__]: Include ioLib.h.
---
 libstdc++-v3/src/c++23/print.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libstdc++-v3/src/c++23/print.cc b/libstdc++-v3/src/c++23/print.cc
index 8ba71405967..f3436995009 100644
--- a/libstdc++-v3/src/c++23/print.cc
+++ b/libstdc++-v3/src/c++23/print.cc
@@ -43,6 +43,10 @@
 # include <unistd.h>  // isatty
 #endif
 
+#ifdef __VXWORKS__
+#include <ioLib.h>
+#endif
+
 namespace std _GLIBCXX_VISIBILITY(default)
 {
 _GLIBCXX_BEGIN_NAMESPACE_VERSION
-- 
2.47.2