Buildinfo fixes

- Use -M suffix if working tree does have uncommitted
  modifications.
- Local commits are considered local changes as well

build_files/cmake/buildinfo.cmake

@@ -22,12 +22,6 @@ if(EXISTS ${SOURCE_DIR}/.git/)
 		                OUTPUT_VARIABLE MY_WC_BRANCH
 		                OUTPUT_STRIP_TRAILING_WHITESPACE)
 
-		# Get latest version tag
-		execute_process(COMMAND git describe --match "v[0-9]*" --abbrev=0
-		                WORKING_DIRECTORY ${SOURCE_DIR}
-		                OUTPUT_VARIABLE _git_latest_version_tag
-		                OUTPUT_STRIP_TRAILING_WHITESPACE)
-
 		execute_process(COMMAND git log -1 --format=%ct
 		                WORKING_DIRECTORY ${SOURCE_DIR}
 		                OUTPUT_VARIABLE MY_WC_COMMIT_TIMESTAMP
@@ -44,11 +38,20 @@ if(EXISTS ${SOURCE_DIR}/.git/)
 		                OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 		if(NOT _git_changed_files STREQUAL "")
-			set(MY_WC_CHANGE "${MY_WC_CHANGE}M")
+			set(MY_WC_BRANCH "${MY_WC_BRANCH} (modified)")
+		else()
+			# Unpushed commits are also considered local odifications
+			execute_process(COMMAND git log @{u}..
+			                WORKING_DIRECTORY ${SOURCE_DIR}
+			                OUTPUT_VARIABLE _git_unpushed_log
+			                OUTPUT_STRIP_TRAILING_WHITESPACE)
+			if(NOT _git_unpushed_log STREQUAL "")
+				set(MY_WC_BRANCH "${MY_WC_BRANCH} (modified)")
+			endif()
+			unset(_git_unpushed_log)
 		endif()
 
 		unset(_git_changed_files)
-		unset(_git_latest_version_tag)
 	endif()
 endif()