diff --git a/include/boost/config/compiler/borland.hpp b/include/boost/config/compiler/borland.hpp
index 4d59e78e..9ab4aaf5 100644
--- a/include/boost/config/compiler/borland.hpp
+++ b/include/boost/config/compiler/borland.hpp
@@ -103,7 +103,7 @@
 #  error "Compiler not supported or configured - please reconfigure"
 #endif
 //
-// last known and checked version is 5.6:
+// last known and checked version is 5.7 (Kylix 3):
 #if (__BORLANDC__ > 0x570)
 #  if defined(BOOST_ASSERT_CONFIG)
 #     error "Unknown compiler version - please run the configure tests and report the results"
@@ -116,3 +116,4 @@
 
 
 
+
diff --git a/include/boost/config/compiler/vacpp.hpp b/include/boost/config/compiler/vacpp.hpp
index 6e575db7..336fabe3 100644
--- a/include/boost/config/compiler/vacpp.hpp
+++ b/include/boost/config/compiler/vacpp.hpp
@@ -7,9 +7,21 @@
 
 //  Visual Age (IBM) C++ compiler setup:
 
-#define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
-#define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
-#define BOOST_NO_MEMBER_FUNCTION_SPECIALIZATIONS
+#if __IBMCPP__ <= 501
+#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#  define BOOST_NO_MEMBER_FUNCTION_SPECIALIZATIONS
+#endif
+
+#if (__IBMCPP__ <= 502) || !defined(BOOST_STRICT_CONFIG)
+// Actually the compiler supports inclass member initialization but it
+// requires a definition for the class member and it doesn't recognize
+// it as an integral constant expression when used as a template argument.
+#  define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+
+#  define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
+#  define BOOST_NO_INTEGRAL_INT64_T
+#endif
+
 //
 // On AIX thread support seems to be indicated by _THREAD_SAFE:
 //
diff --git a/include/boost/config/compiler/visualc.hpp b/include/boost/config/compiler/visualc.hpp
index e8510a50..9194db5a 100644
--- a/include/boost/config/compiler/visualc.hpp
+++ b/include/boost/config/compiler/visualc.hpp
@@ -52,7 +52,7 @@
 
 #endif
 
-#if _MSC_VER <= 1310
+#if _MSC_VER < 1310
 #  define BOOST_NO_SWPRINTF
 #endif
 
diff --git a/include/boost/config/platform/aix.hpp b/include/boost/config/platform/aix.hpp
index 670bf0bc..f1bb1b2f 100644
--- a/include/boost/config/platform/aix.hpp
+++ b/include/boost/config/platform/aix.hpp
@@ -10,12 +10,20 @@
 #define BOOST_PLATFORM "IBM Aix"
 
 #define BOOST_HAS_UNISTD_H
-#define BOOST_HAS_PTHREADS
 #define BOOST_HAS_NL_TYPES_H
+#define BOOST_HAS_NANOSLEEP
+#define BOOST_HAS_CLOCK_GETTIME
+
+// This needs support in "boost/cstdint.hpp" exactly like FreeBSD.
+// This platform has header named <inttypes.h> which includes all
+// the things needed.
+#define BOOST_HAS_STDINT_H
 
 // Threading API's:
+#define BOOST_HAS_PTHREADS
 #define BOOST_HAS_PTHREAD_DELAY_NP
-#define BOOST_HAS_PTHREAD_YIELD
+#define BOOST_HAS_SCHED_YIELD
+//#define BOOST_HAS_PTHREAD_YIELD
 
 // boilerplate code:
 #include <boost/config/posix_features.hpp>
diff --git a/include/boost/config/stdlib/dinkumware.hpp b/include/boost/config/stdlib/dinkumware.hpp
index 119b0b65..f6da4251 100644
--- a/include/boost/config/stdlib/dinkumware.hpp
+++ b/include/boost/config/stdlib/dinkumware.hpp
@@ -21,7 +21,7 @@
 #  if !(defined(_GLOBAL_USING) && (_GLOBAL_USING+0 > 0)) && !defined(_STD)   // can be defined in yvals.h
 #     define BOOST_NO_STDC_NAMESPACE
 #  endif
-#  if !(defined(_HAS_MEMBER_TEMPLATES_REBIND) && (_HAS_MEMBER_TEMPLATES_REBIND+0 > 0) && !(defined(_MSC_VER) && (_MSC_VER > 1300)))
+#  if !(defined(_HAS_MEMBER_TEMPLATES_REBIND) && (_HAS_MEMBER_TEMPLATES_REBIND+0 > 0)) && !(defined(_MSC_VER) && (_MSC_VER > 1300))
 #     define BOOST_NO_STD_ALLOCATOR
 #  endif
 #  if defined(_MSC_VER) && (_MSC_VER < 1300)
diff --git a/include/boost/config/stdlib/vacpp.hpp b/include/boost/config/stdlib/vacpp.hpp
index ad4d2fc4..2d5bf570 100644
--- a/include/boost/config/stdlib/vacpp.hpp
+++ b/include/boost/config/stdlib/vacpp.hpp
@@ -5,8 +5,11 @@
 
 //  See http://www.boost.org for most recent version.
 
+#if __IBMCPP__ <= 501
+#  define BOOST_NO_STD_ALLOCATOR
+#endif
+
 #define BOOST_HAS_MACRO_USE_FACET
-#define BOOST_NO_STD_ALLOCATOR
 
 #define BOOST_STDLIB "Visual Age default standard library"