[cmake] Adapt to fix in version macros

now minor and patch numbers which are <10 are not prepended
with a 0 not to incur into invalid octals, i.e. 08 and 09.

Author: dpiparo

cmake/modules/SetROOTVersion.cmake

@@ -22,9 +22,17 @@ function(SET_VERSION_FROM_FILE)
   string(REGEX MATCH "#define ROOT_VERSION_MAJOR ([0-9]*)" _ ${versionstr})
   set(ROOT_MAJOR_VERSION ${CMAKE_MATCH_1})
   string(REGEX MATCH "#define ROOT_VERSION_MINOR ([0-9]*)" _ ${versionstr})
-  set(ROOT_MINOR_VERSION ${CMAKE_MATCH_1})
+  if (CMAKE_MATCH_1 LESS 10)
+    set(ROOT_MINOR_VERSION "0${CMAKE_MATCH_1}")
+  else()
+    set(ROOT_MINOR_VERSION ${CMAKE_MATCH_1})
+  endif()
   string(REGEX MATCH "#define ROOT_VERSION_PATCH ([0-9]*)" _ ${versionstr})
-  set(ROOT_PATCH_VERSION ${CMAKE_MATCH_1})
+  if (CMAKE_MATCH_1 LESS 10)
+    set(ROOT_PATCH_VERSION "0${CMAKE_MATCH_1}")
+  else()
+    set(ROOT_PATCH_VERSION ${CMAKE_MATCH_1})
+  endif()
 
   set(ROOT_MAJOR_VERSION "${ROOT_MAJOR_VERSION}" PARENT_SCOPE)
   set(ROOT_MINOR_VERSION "${ROOT_MINOR_VERSION}" PARENT_SCOPE)