Remove non-working git_local_changes, which isn't updated on each rebuild, only when hash changes.

CMake/GetGitRevisionDescription.cmake

@@ -138,30 +138,3 @@ function(get_git_head_revision _refspecvar _hashvar)
   set(${_refspecvar} "${HEAD_REF}" PARENT_SCOPE)
   set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE)
 endfunction()
-
-function(git_local_changes _var)
-  if (NOT GIT_FOUND)
-    find_package(Git QUIET)
-  endif()
-  get_git_head_revision(refspec hash)
-  if (NOT GIT_FOUND)
-    set(${_var} "GIT-NOTFOUND" PARENT_SCOPE)
-    return()
-  endif()
-  if (NOT hash)
-    set(${_var} "HEAD-HASH-NOTFOUND" PARENT_SCOPE)
-    return()
-  endif()
-
-  execute_process(
-    COMMAND "${GIT_EXECUTABLE}" diff-index --quiet HEAD --
-    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-    RESULT_VARIABLE res
-    ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-  if (res EQUAL 0)
-    set(${_var} "CLEAN" PARENT_SCOPE)
-  else()
-    set(${_var} "DIRTY" PARENT_SCOPE)
-  endif()
-endfunction()

CMakeLists.txt

@@ -154,11 +154,7 @@ endif()
 
 include(GetGitRevisionDescription)
 get_git_head_revision(TD_GIT_REFSPEC TD_GIT_COMMIT)
-git_local_changes(TD_GIT_DIRTY)
-message(STATUS "Git state: ${TD_GIT_COMMIT} ${TD_GIT_DIRTY}")
-if (NOT TD_GIT_DIRTY STREQUAL "DIRTY")
-  unset(TD_GIT_DIRTY)
-endif()
+message(STATUS "Git state: ${TD_GIT_COMMIT}")
 
 add_subdirectory(tdtl)