From 2c70a870d9d7de870f86e80ae21955f1ae22f06f Mon Sep 17 00:00:00 2001
From: Edward Diener <eldlistmailingz@tropicsoft.com>
Date: Sun, 5 Apr 2020 15:56:42 -0400
Subject: [PATCH] Embarcadero C++ clang-based compilers have chdir and dup2 but
 not _chdir and _dup2.

---
 include/boost/config/compiler/codegear.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/boost/config/compiler/codegear.hpp b/include/boost/config/compiler/codegear.hpp
index 4b471063..dbddb703 100644
--- a/include/boost/config/compiler/codegear.hpp
+++ b/include/boost/config/compiler/codegear.hpp
@@ -111,6 +111,18 @@
 #  endif
 #endif /* defined(BOOST_EMBTC) */
 
+#if defined(BOOST_EMBTC_WINDOWS)
+
+#if !defined(_chdir)
+#define _chdir(x) chdir(x)
+#endif
+
+#if !defined(_dup2)
+#define _dup2(x,y) dup2(x,y)
+#endif
+
+#endif
+
 #  undef BOOST_COMPILER
 #  define BOOST_COMPILER "Embarcadero-Clang C++ version " BOOST_STRINGIZE(__CODEGEARC__) " clang: " __clang_version__
 // #  define __CODEGEARC_CLANG__ __CODEGEARC__