Change __BORLANDC__ to BOOST_BORLANDC, which is defined in Boost config for the Embarcadero non-clang-based compilers.

test/call_traits_test.cpp

@@ -376,7 +376,7 @@ void call_traits_test<T, true>::assert_construct(typename boost::call_traits<T>:
    reference r = t;
    const_reference cr = t;
    reference r2 = r;
-   #ifndef __BORLANDC__
+   #ifndef BOOST_BORLANDC
    // C++ Builder buglet:
    const_reference cr2 = r;
    #endif
@@ -393,7 +393,7 @@ void call_traits_test<T, true>::assert_construct(typename boost::call_traits<T>:
    unused_variable(v3);
    unused_variable(v4);
    unused_variable(v5);
-#ifndef __BORLANDC__
+#ifndef BOOST_BORLANDC
    unused_variable(r2);
    unused_variable(cr2);
 #endif

test/value_init_test.cpp

@@ -17,7 +17,7 @@
 
 #include "boost/utility/value_init.hpp"
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 #pragma hdrstop
 #endif
 
@@ -217,8 +217,8 @@ void check_initialized_value ( T const& y )
   BOOST_TEST ( y == initializedValue ) ;
 }
 
-#ifdef  __BORLANDC__
-#if __BORLANDC__ == 0x582
+#ifdef  BOOST_BORLANDC
+#if BOOST_BORLANDC == 0x582
 void check_initialized_value( NonPOD const& )
 {
   // The initialized_value check is skipped for Borland 5.82

test/value_init_test_fail1.cpp

@@ -13,7 +13,7 @@
 
 #include "boost/utility/value_init.hpp"
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 #pragma hdrstop
 #endif
 

test/value_init_test_fail2.cpp

@@ -13,7 +13,7 @@
 
 #include "boost/utility/value_init.hpp"
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 #pragma hdrstop
 #endif
 

test/value_init_test_fail3.cpp

@@ -13,7 +13,7 @@
 
 #include "boost/utility/value_init.hpp"
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 #pragma hdrstop
 #endif