ENH: Overhaul CMake version numbering

This moves the version numbers into an isolated configured header so
that not all of CMake needs to rebuild when the version changes.

Previously we had spaces, dashes and/or the word 'patch' randomly chosen
before the patch number.  Now we always report version numbers in the
traditional format "<major>.<minor>.<patch>[-rc<rc>]".

We still use odd minor numbers for development versions.  Now we also
use the CCYYMMDD date as the patch number of development versions, thus
allowing tests for exact CMake versions.

1 files changed, 6 insertions, 20 deletions

diff --git a/Source/cmVersion.cxx b/Source/cmVersion.cxx
index 77b19aa..0518c1f 100644
--- a/Source/cmVersion.cxx
+++ b/Source/cmVersion.cxx
@@ -16,27 +16,13 @@
 =========================================================================*/
 #include "cmVersion.h"
 
-#include <cmsys/DateStamp.h>
+#include "cmVersionMacros.h"
 
-std::string cmVersion::GetReleaseVersion()
-{
-#if CMake_VERSION_MINOR & 1
-  return cmsys_DATE_STAMP_STRING_FULL;
-#else
-# ifdef CMake_VERSION_RC
-  return "patch " CMAKE_TO_STRING(CMake_VERSION_PATCH) " RC-" 
-    CMAKE_TO_STRING(CMake_VERSION_RC);
-# else
-  return "patch " CMAKE_TO_STRING(CMake_VERSION_PATCH);
-# endif  
-#endif
-}
+unsigned int cmVersion::GetMajorVersion() { return CMake_VERSION_MAJOR; }
+unsigned int cmVersion::GetMinorVersion() { return CMake_VERSION_MINOR; }
+unsigned int cmVersion::GetPatchVersion() { return CMake_VERSION_PATCH; }
 
-std::string cmVersion::GetCMakeVersion()
+const char* cmVersion::GetCMakeVersion()
 {
-  cmOStringStream str;
-  str << CMake_VERSION_MAJOR << "." << CMake_VERSION_MINOR
-    << "-"
-    << cmVersion::GetReleaseVersion();
-  return str.str();
+  return CMake_VERSION_FULL CMake_VERSION_RC_SUFFIX;
 }