diff --git a/Modules/CMakeCCompiler.cmake.in b/Modules/CMakeCCompiler.cmake.in
index 04a5cec6d..b14cf3427 100644
--- a/Modules/CMakeCCompiler.cmake.in
+++ b/Modules/CMakeCCompiler.cmake.in
@@ -1,6 +1,7 @@
 SET(CMAKE_C_COMPILER "@CMAKE_C_COMPILER@")
 SET(CMAKE_C_COMPILER_ARG1 "@CMAKE_C_COMPILER_ARG1@")
 SET(CMAKE_C_COMPILER_ID "@CMAKE_C_COMPILER_ID@")
+SET(CMAKE_C_COMPILER_VERSION "@CMAKE_C_COMPILER_VERSION@")
 SET(CMAKE_C_PLATFORM_ID "@CMAKE_C_PLATFORM_ID@")
 @SET_MSVC_C_ARCHITECTURE_ID@
 SET(CMAKE_AR "@CMAKE_AR@")
diff --git a/Modules/CMakeCCompilerId.c.in b/Modules/CMakeCCompilerId.c.in
index 4cc690a26..b0f5eb625 100644
--- a/Modules/CMakeCCompilerId.c.in
+++ b/Modules/CMakeCCompilerId.c.in
@@ -2,27 +2,62 @@
 # error "A C++ compiler has been selected for C."
 #endif
 
+/* Version number components: V=Version, R=Revision, P=Patch
+   Version date components:   YYYY=Year, MM=Month,   DD=Day  */
+
 #if defined(__18CXX)
 # define ID_VOID_MAIN
 #endif
 
 #if defined(__INTEL_COMPILER) || defined(__ICC)
 # define COMPILER_ID "Intel"
+  /* __INTEL_COMPILER = VRP */
+# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
+# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER/10 % 10)
+# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER    % 10)
+# if defined(__INTEL_COMPILER_BUILD_DATE)
+  /* __INTEL_COMPILER_BUILD_DATE = YYYYMMDD */
+#  define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
+# endif
 
 #elif defined(__clang__)
 # define COMPILER_ID "Clang"
+# define COMPILER_VERSION_MAJOR DEC(__clang_major__)
+# define COMPILER_VERSION_MINOR DEC(__clang_minor__)
+# define COMPILER_VERSION_PATCH DEC(__clang_patchlevel__)
 
 #elif defined(__BORLANDC__)
 # define COMPILER_ID "Borland"
+  /* __BORLANDC__ = 0xVRR */
+# define COMPILER_VERSION_MAJOR HEX(__BORLANDC__>>8)
+# define COMPILER_VERSION_MINOR HEX(__BORLANDC__ & 0xFF)
 
 #elif defined(__WATCOMC__)
 # define COMPILER_ID "Watcom"
+  /* __WATCOMC__ = VVRR */
+# define COMPILER_VERSION_MAJOR DEC(__WATCOMC__ / 100)
+# define COMPILER_VERSION_MINOR DEC(__WATCOMC__ % 100)
 
 #elif defined(__SUNPRO_C)
 # define COMPILER_ID "SunPro"
+# if __SUNPRO_C >= 0x5100
+   /* __SUNPRO_C = 0xVRRP */
+#  define COMPILER_VERSION_MAJOR HEX(__SUNPRO_C>>12)
+#  define COMPILER_VERSION_MINOR HEX(__SUNPRO_C>>4 & 0xFF)
+#  define COMPILER_VERSION_PATCH HEX(__SUNPRO_C    & 0xF)
+# else
+   /* __SUNPRO_C = 0xVRP */
+#  define COMPILER_VERSION_MAJOR HEX(__SUNPRO_C>>8)
+#  define COMPILER_VERSION_MINOR HEX(__SUNPRO_C>>4 & 0xF)
+#  define COMPILER_VERSION_PATCH HEX(__SUNPRO_C    & 0xF)
+# endif
 
 #elif defined(__HP_cc)
 # define COMPILER_ID "HP"
+  /* __HP_cc = VVRRPP */
+# define COMPILER_VERSION_MAJOR DEC(__HP_cc/10000)
+# define COMPILER_VERSION_MINOR DEC(__HP_cc/100 % 100)
+# define COMPILER_VERSION_PATCH DEC(__HP_cc     % 100)
 
 #elif defined(__DECC)
 # define COMPILER_ID "Compaq"
@@ -30,14 +65,25 @@
 #elif defined(__IBMC__)
 # if defined(__COMPILER_VER__)
 #  define COMPILER_ID "zOS"
-# elif __IBMC__ >= 800
-#  define COMPILER_ID "XL"
 # else
-#  define COMPILER_ID "VisualAge"
+#  if __IBMC__ >= 800
+#   define COMPILER_ID "XL"
+#  else
+#   define COMPILER_ID "VisualAge"
+#  endif
+   /* __IBMC__ = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(__IBMC__/100)
+#  define COMPILER_VERSION_MINOR DEC(__IBMC__/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(__IBMC__    % 10)
 # endif
 
 #elif defined(__PGI)
 # define COMPILER_ID "PGI"
+# define COMPILER_VERSION_MAJOR DEC(__PGIC__)
+# define COMPILER_VERSION_MINOR DEC(__PGIC_MINOR__)
+# if defined(__PGIC_PATCHLEVEL__)
+#  define COMPILER_VERSION_PATCH DEC(__PGIC_PATCHLEVEL__)
+# endif
 
 #elif defined(__PATHSCALE__)
 # define COMPILER_ID "PathScale"
@@ -56,9 +102,29 @@
 
 #elif defined(__GNUC__)
 # define COMPILER_ID "GNU"
+# define COMPILER_VERSION_MAJOR DEC(__GNUC__)
+# define COMPILER_VERSION_MINOR DEC(__GNUC_MINOR__)
+# if defined(__GNUC_PATCHLEVEL__)
+#  define COMPILER_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
+# endif
 
 #elif defined(_MSC_VER)
 # define COMPILER_ID "MSVC"
+  /* _MSC_VER = VVRR */
+# define COMPILER_VERSION_MAJOR DEC(_MSC_VER / 100)
+# define COMPILER_VERSION_MINOR DEC(_MSC_VER % 100)
+# if defined(_MSC_FULL_VER)
+#  if _MSC_VER >= 1400
+    /* _MSC_FULL_VER = VVRRPPPPP */
+#   define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 100000)
+#  else
+    /* _MSC_FULL_VER = VVRRPPPP */
+#   define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 10000)
+#  endif
+# endif
+# if defined(_MSC_BUILD)
+#  define COMPILER_VERSION_TWEAK DEC(_MSC_BUILD)
+# endif
 
 #elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
 /* Analog Devices C++ compiler for Blackfin, TigerSHARC and
@@ -78,6 +144,17 @@
 
 #elif defined(_SGI_COMPILER_VERSION) || defined(_COMPILER_VERSION)
 # define COMPILER_ID "MIPSpro"
+# if defined(_SGI_COMPILER_VERSION)
+  /* _SGI_COMPILER_VERSION = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(_SGI_COMPILER_VERSION/100)
+#  define COMPILER_VERSION_MINOR DEC(_SGI_COMPILER_VERSION/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(_SGI_COMPILER_VERSION    % 10)
+# else
+  /* _COMPILER_VERSION = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(_COMPILER_VERSION/100)
+#  define COMPILER_VERSION_MINOR DEC(_COMPILER_VERSION/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION    % 10)
+# endif
 
 /* This compiler is either not known or is too old to define an
    identification macro.  Try to identify the platform and guess that
@@ -112,6 +189,9 @@ int main(int argc, char* argv[])
   require += info_compiler[argc];
   require += info_platform[argc];
   require += info_arch[argc];
+#ifdef COMPILER_VERSION_MAJOR
+  require += info_version[argc];
+#endif
   (void)argv;
   return require;
 }
diff --git a/Modules/CMakeCXXCompiler.cmake.in b/Modules/CMakeCXXCompiler.cmake.in
index ea06526cc..bc3bc2efb 100644
--- a/Modules/CMakeCXXCompiler.cmake.in
+++ b/Modules/CMakeCXXCompiler.cmake.in
@@ -1,6 +1,7 @@
 SET(CMAKE_CXX_COMPILER "@CMAKE_CXX_COMPILER@")
 SET(CMAKE_CXX_COMPILER_ARG1 "@CMAKE_CXX_COMPILER_ARG1@")
 SET(CMAKE_CXX_COMPILER_ID "@CMAKE_CXX_COMPILER_ID@")
+SET(CMAKE_CXX_COMPILER_VERSION "@CMAKE_CXX_COMPILER_VERSION@")
 SET(CMAKE_CXX_PLATFORM_ID "@CMAKE_CXX_PLATFORM_ID@")
 @SET_MSVC_CXX_ARCHITECTURE_ID@
 SET(CMAKE_AR "@CMAKE_AR@")
diff --git a/Modules/CMakeCXXCompilerId.cpp.in b/Modules/CMakeCXXCompilerId.cpp.in
index 4c8f4972c..927f7f477 100644
--- a/Modules/CMakeCXXCompilerId.cpp.in
+++ b/Modules/CMakeCXXCompilerId.cpp.in
@@ -5,26 +5,61 @@
 # error "A C compiler has been selected for C++."
 #endif
 
+/* Version number components: V=Version, R=Revision, P=Patch
+   Version date components:   YYYY=Year, MM=Month,   DD=Day  */
+
 #if defined(__COMO__)
 # define COMPILER_ID "Comeau"
 
 #elif defined(__INTEL_COMPILER) || defined(__ICC)
 # define COMPILER_ID "Intel"
+  /* __INTEL_COMPILER = VRP */
+# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
+# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER/10 % 10)
+# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER    % 10)
+# if defined(__INTEL_COMPILER_BUILD_DATE)
+  /* __INTEL_COMPILER_BUILD_DATE = YYYYMMDD */
+#  define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
+# endif
 
 #elif defined(__clang__)
 # define COMPILER_ID "Clang"
+# define COMPILER_VERSION_MAJOR DEC(__clang_major__)
+# define COMPILER_VERSION_MINOR DEC(__clang_minor__)
+# define COMPILER_VERSION_PATCH DEC(__clang_patchlevel__)
 
 #elif defined(__BORLANDC__)
 # define COMPILER_ID "Borland"
+  /* __BORLANDC__ = 0xVRR */
+# define COMPILER_VERSION_MAJOR HEX(__BORLANDC__>>8)
+# define COMPILER_VERSION_MINOR HEX(__BORLANDC__ & 0xFF)
 
 #elif defined(__WATCOMC__)
 # define COMPILER_ID "Watcom"
+  /* __WATCOMC__ = VVRR */
+# define COMPILER_VERSION_MAJOR DEC(__WATCOMC__ / 100)
+# define COMPILER_VERSION_MINOR DEC(__WATCOMC__ % 100)
 
 #elif defined(__SUNPRO_CC)
 # define COMPILER_ID "SunPro"
+# if __SUNPRO_CC >= 0x5100
+   /* __SUNPRO_CC = 0xVRRP */
+#  define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>12)
+#  define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xFF)
+#  define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC    & 0xF)
+# else
+   /* __SUNPRO_CC = 0xVRP */
+#  define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>8)
+#  define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xF)
+#  define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC    & 0xF)
+# endif
 
 #elif defined(__HP_aCC)
 # define COMPILER_ID "HP"
+  /* __HP_aCC = VVRRPP */
+# define COMPILER_VERSION_MAJOR DEC(__HP_aCC/10000)
+# define COMPILER_VERSION_MINOR DEC(__HP_aCC/100 % 100)
+# define COMPILER_VERSION_PATCH DEC(__HP_aCC     % 100)
 
 #elif defined(__DECCXX)
 # define COMPILER_ID "Compaq"
@@ -32,14 +67,25 @@
 #elif defined(__IBMCPP__)
 # if defined(__COMPILER_VER__)
 #  define COMPILER_ID "zOS"
-# elif __IBMCPP__ >= 800
-#  define COMPILER_ID "XL"
 # else
-#  define COMPILER_ID "VisualAge"
+#  if __IBMCPP__ >= 800
+#   define COMPILER_ID "XL"
+#  else
+#   define COMPILER_ID "VisualAge"
+#  endif
+   /* __IBMCPP__ = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
+#  define COMPILER_VERSION_MINOR DEC(__IBMCPP__/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(__IBMCPP__    % 10)
 # endif
 
 #elif defined(__PGI)
 # define COMPILER_ID "PGI"
+# define COMPILER_VERSION_MAJOR DEC(__PGIC__)
+# define COMPILER_VERSION_MINOR DEC(__PGIC_MINOR__)
+# if defined(__PGIC_PATCHLEVEL__)
+#  define COMPILER_VERSION_PATCH DEC(__PGIC_PATCHLEVEL__)
+# endif
 
 #elif defined(__PATHSCALE__)
 # define COMPILER_ID "PathScale"
@@ -55,9 +101,29 @@
 
 #elif defined(__GNUC__)
 # define COMPILER_ID "GNU"
+# define COMPILER_VERSION_MAJOR DEC(__GNUC__)
+# define COMPILER_VERSION_MINOR DEC(__GNUC_MINOR__)
+# if defined(__GNUC_PATCHLEVEL__)
+#  define COMPILER_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
+# endif
 
 #elif defined(_MSC_VER)
 # define COMPILER_ID "MSVC"
+  /* _MSC_VER = VVRR */
+# define COMPILER_VERSION_MAJOR DEC(_MSC_VER / 100)
+# define COMPILER_VERSION_MINOR DEC(_MSC_VER % 100)
+# if defined(_MSC_FULL_VER)
+#  if _MSC_VER >= 1400
+    /* _MSC_FULL_VER = VVRRPPPPP */
+#   define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 100000)
+#  else
+    /* _MSC_FULL_VER = VVRRPPPP */
+#   define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 10000)
+#  endif
+# endif
+# if defined(_MSC_BUILD)
+#  define COMPILER_VERSION_TWEAK DEC(_MSC_BUILD)
+# endif
 
 #elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
 /* Analog Devices C++ compiler for Blackfin, TigerSHARC and
@@ -66,6 +132,17 @@
 
 #elif defined(_SGI_COMPILER_VERSION) || defined(_COMPILER_VERSION)
 # define COMPILER_ID "MIPSpro"
+# if defined(_SGI_COMPILER_VERSION)
+  /* _SGI_COMPILER_VERSION = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(_SGI_COMPILER_VERSION/100)
+#  define COMPILER_VERSION_MINOR DEC(_SGI_COMPILER_VERSION/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(_SGI_COMPILER_VERSION    % 10)
+# else
+  /* _COMPILER_VERSION = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(_COMPILER_VERSION/100)
+#  define COMPILER_VERSION_MINOR DEC(_COMPILER_VERSION/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION    % 10)
+# endif
 
 /* This compiler is either not known or is too old to define an
    identification macro.  Try to identify the platform and guess that
@@ -96,6 +173,9 @@ int main(int argc, char* argv[])
   int require = 0;
   require += info_compiler[argc];
   require += info_platform[argc];
+#ifdef COMPILER_VERSION_MAJOR
+  require += info_version[argc];
+#endif
   (void)argv;
   return require;
 }
diff --git a/Modules/CMakeDetermineCompilerId.cmake b/Modules/CMakeDetermineCompilerId.cmake
index b160dee62..686cc9b6a 100644
--- a/Modules/CMakeDetermineCompilerId.cmake
+++ b/Modules/CMakeDetermineCompilerId.cmake
@@ -55,8 +55,13 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID lang flagvar src)
 
   # Display the final identification result.
   IF(CMAKE_${lang}_COMPILER_ID)
+    IF(CMAKE_${lang}_COMPILER_VERSION)
+      SET(_version " ${CMAKE_${lang}_COMPILER_VERSION}")
+    ELSE()
+      SET(_version "")
+    ENDIF()
     MESSAGE(STATUS "The ${lang} compiler identification is "
-      "${CMAKE_${lang}_COMPILER_ID}")
+      "${CMAKE_${lang}_COMPILER_ID}${_version}")
   ELSE(CMAKE_${lang}_COMPILER_ID)
     MESSAGE(STATUS "The ${lang} compiler identification is unknown")
   ENDIF(CMAKE_${lang}_COMPILER_ID)
@@ -65,6 +70,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID lang flagvar src)
   SET(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
   SET(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
     PARENT_SCOPE)
+  SET(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
 ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ID)
 
 #-----------------------------------------------------------------------------
@@ -177,9 +183,10 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
   IF(NOT CMAKE_${lang}_COMPILER_ID)
     # Read the compiler identification string from the executable file.
     SET(COMPILER_ID)
+    SET(COMPILER_VERSION)
     SET(PLATFORM_ID)
     FILE(STRINGS ${file}
-      CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 3 REGEX "INFO:")
+      CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 4 REGEX "INFO:")
     SET(HAVE_COMPILER_TWICE 0)
     FOREACH(info ${CMAKE_${lang}_COMPILER_ID_STRINGS})
       IF("${info}" MATCHES ".*INFO:compiler\\[([^]\"]*)\\].*")
@@ -197,6 +204,11 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
         STRING(REGEX REPLACE ".*INFO:arch\\[([^]]*)\\].*" "\\1"
           ARCHITECTURE_ID "${info}")
       ENDIF("${info}" MATCHES ".*INFO:arch\\[([^]\"]*)\\].*")
+      IF("${info}" MATCHES ".*INFO:compiler_version\\[([^]\"]*)\\].*")
+        STRING(REGEX REPLACE ".*INFO:compiler_version\\[([^]]*)\\].*" "\\1" COMPILER_VERSION "${info}")
+        STRING(REGEX REPLACE "^0+([0-9])" "\\1" COMPILER_VERSION "${COMPILER_VERSION}")
+        STRING(REGEX REPLACE "\\.0+([0-9])" ".\\1" COMPILER_VERSION "${COMPILER_VERSION}")
+      ENDIF("${info}" MATCHES ".*INFO:compiler_version\\[([^]\"]*)\\].*")
     ENDFOREACH(info)
 
     # Check if a valid compiler and platform were found.
@@ -204,6 +216,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
       SET(CMAKE_${lang}_COMPILER_ID "${COMPILER_ID}")
       SET(CMAKE_${lang}_PLATFORM_ID "${PLATFORM_ID}")
       SET(MSVC_${lang}_ARCHITECTURE_ID "${ARCHITECTURE_ID}")
+      SET(CMAKE_${lang}_COMPILER_VERSION "${COMPILER_VERSION}")
     ENDIF(COMPILER_ID AND NOT COMPILER_ID_TWICE)
 
     # Check the compiler identification string.
@@ -251,6 +264,7 @@ FUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
   SET(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
   SET(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
     PARENT_SCOPE)
+  SET(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
   SET(CMAKE_EXECUTABLE_FORMAT "${CMAKE_EXECUTABLE_FORMAT}" PARENT_SCOPE)
 ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ID_CHECK lang)
 
diff --git a/Modules/CMakePlatformId.h.in b/Modules/CMakePlatformId.h.in
index cb3f40a1f..b69bf6310 100644
--- a/Modules/CMakePlatformId.h.in
+++ b/Modules/CMakePlatformId.h.in
@@ -105,6 +105,46 @@
 #  define ARCHITECTURE_ID ""
 #endif
 
+/* Convert integer to decimal digit literals.  */
+#define DEC(n)                   \
+  ('0' + (((n) / 10000000)%10)), \
+  ('0' + (((n) / 1000000)%10)),  \
+  ('0' + (((n) / 100000)%10)),   \
+  ('0' + (((n) / 10000)%10)),    \
+  ('0' + (((n) / 1000)%10)),     \
+  ('0' + (((n) / 100)%10)),      \
+  ('0' + (((n) / 10)%10)),       \
+  ('0' +  ((n) % 10))
+
+/* Convert integer to hex digit literals.  */
+#define HEX(n)             \
+  ('0' + ((n)>>28 & 0xF)), \
+  ('0' + ((n)>>24 & 0xF)), \
+  ('0' + ((n)>>20 & 0xF)), \
+  ('0' + ((n)>>16 & 0xF)), \
+  ('0' + ((n)>>12 & 0xF)), \
+  ('0' + ((n)>>8  & 0xF)), \
+  ('0' + ((n)>>4  & 0xF)), \
+  ('0' + ((n)     & 0xF))
+
+/* Construct a string literal encoding the version number components. */
+#ifdef COMPILER_VERSION_MAJOR
+char const info_version[] = {
+  'I', 'N', 'F', 'O', ':',
+  'c','o','m','p','i','l','e','r','_','v','e','r','s','i','o','n','[',
+  COMPILER_VERSION_MAJOR,
+# ifdef COMPILER_VERSION_MINOR
+  '.', COMPILER_VERSION_MINOR,
+#  ifdef COMPILER_VERSION_PATCH
+   '.', COMPILER_VERSION_PATCH,
+#   ifdef COMPILER_VERSION_TWEAK
+    '.', COMPILER_VERSION_TWEAK,
+#   endif
+#  endif
+# endif
+  ']','\0'};
+#endif
+
 /* Construct the string literal in pieces to prevent the source from
    getting matched.  Store it in a pointer rather than an array
    because some compilers will just produce instructions to fill the
diff --git a/Source/cmDocumentVariables.cxx b/Source/cmDocumentVariables.cxx
index fe29df9be..687debc5a 100644
--- a/Source/cmDocumentVariables.cxx
+++ b/Source/cmDocumentVariables.cxx
@@ -1300,6 +1300,15 @@ void cmDocumentVariables::DefineVariables(cmake* cm)
      false,
      "Variables for Languages");
 
+  cm->DefineProperty
+    ("CMAKE_<LANG>_COMPILER_VERSION", cmProperty::VARIABLE,
+     "An internal variable subject to change.",
+     "Compiler version in major[.minor[.patch[.tweak]]] format.  "
+     "This variable is reserved for internal use by CMake and is not "
+     "guaranteed to be set.",
+     false,
+     "Variables for Languages");
+
   cm->DefineProperty
     ("CMAKE_INTERNAL_PLATFORM_ABI", cmProperty::VARIABLE,
      "An internal variable subject to change.",
diff --git a/Tests/SystemInformation/SystemInformation.in b/Tests/SystemInformation/SystemInformation.in
index 1055d07dd..90ae20a60 100644
--- a/Tests/SystemInformation/SystemInformation.in
+++ b/Tests/SystemInformation/SystemInformation.in
@@ -17,6 +17,10 @@ CMAKE_CXX_COMPILER == "${CMAKE_CXX_COMPILER}"
 CMAKE_C_COMPILER == "${CMAKE_C_COMPILER}"
 CMAKE_COMPILER_IS_GNUCC == "${CMAKE_COMPILER_IS_GNUCC}"
 CMAKE_COMPILER_IS_GNUCXX == "${CMAKE_COMPILER_IS_GNUCXX}"
+CMAKE_C_COMPILER_ID == "${CMAKE_C_COMPILER_ID}"
+CMAKE_C_COMPILER_VERSION == "${CMAKE_C_COMPILER_VERSION}"
+CMAKE_CXX_COMPILER_ID == "${CMAKE_CXX_COMPILER_ID}"
+CMAKE_CXX_COMPILER_VERSION == "${CMAKE_CXX_COMPILER_VERSION}"
 
 // C shared library flag
 CMAKE_SHARED_LIBRARY_C_FLAGS == "${CMAKE_SHARED_LIBRARY_C_FLAGS}"