ENH: move full path compiler to internal and not just advanced

Modules/CMakeDetermineCCompiler.cmake

@@ -31,6 +31,7 @@ IF(NOT CMAKE_C_COMPILER)
     FIND_PROGRAM(CMAKE_C_COMPILER_FULLPATH NAMES ${CMAKE_C_COMPILER_LIST} )
     GET_FILENAME_COMPONENT(CMAKE_C_COMPILER_INIT
                            ${CMAKE_C_COMPILER_FULLPATH} NAME)
+    SET(CMAKE_C_COMPILER_FULLPATH "${CMAKE_C_COMPILER_FULLPATH}" CACHE INTERNAL "full path to the compiler cmake found")
   ENDIF(NOT CMAKE_C_COMPILER_INIT)
 
   SET(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_INIT} CACHE STRING "C compiler")
@@ -57,4 +58,4 @@ ENDIF(NOT CMAKE_COMPILER_RETURN)
 # configure variables set in this file for fast reload later on
 CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in 
                ${CMAKE_BINARY_DIR}/CMakeCCompiler.cmake IMMEDIATE)
-MARK_AS_ADVANCED(CMAKE_AR CMAKE_C_COMPILER_FULLPATH)
+MARK_AS_ADVANCED(CMAKE_AR)

Modules/CMakeDetermineCXXCompiler.cmake

@@ -31,6 +31,7 @@ IF(NOT CMAKE_CXX_COMPILER)
     FIND_PROGRAM(CMAKE_CXX_COMPILER_FULLPATH NAMES ${CMAKE_CXX_COMPILER_LIST})
     GET_FILENAME_COMPONENT(CMAKE_CXX_COMPILER_INIT
                            ${CMAKE_CXX_COMPILER_FULLPATH} NAME)
+    SET(CMAKE_CXX_COMPILER_FULLPATH "${CMAKE_CXX_COMPILER_FULLPATH}" CACHE INTERNAL "full path to the compiler cmake found")
   ENDIF(NOT CMAKE_CXX_COMPILER_INIT)
   SET(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER_INIT} 
       CACHE STRING "C++ compiler") 
@@ -49,7 +50,6 @@ ENDIF(NOT CMAKE_COMPILER_RETURN)
 # configure all variables set in this file
 CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in 
                ${CMAKE_BINARY_DIR}/CMakeCXXCompiler.cmake IMMEDIATE)
-MARK_AS_ADVANCED(CMAKE_CXX_COMPILER_FULLPATH)