-@echo off\r
-REM set up a CVS tree to build when there's no autotools\r
-REM $Revision$\r
-REM $Date$\r
-\r
-REM create ares_build.h\r
-copy /Y ares_build.h.dist ares_build.h\r
-\r
+@echo off
+REM
+REM
+REM This batch file must be used to set up a git tree to build on
+REM systems where there is no autotools support (i.e. Microsoft).
+REM
+REM This file is not included nor needed for c-ares' release
+REM archives, neither for c-ares' daily snapshot archives.
+
+if exist GIT-INFO goto start_doing
+ECHO ERROR: This file shall only be used with a c-ares git checkout.
+goto end_all
+:start_doing
+
+if not exist ares_build.h.dist goto end_ares_build_h
+copy /Y ares_build.h.dist ares_build.h
+:end_ares_build_h
+
+:end_all
+