anchor.diff:  
   :chksetup
   set chk=0
  -for /D %%p in (packages) do set chk=1
  -if chk==0 (
  +rem for won't look into file system without a single wildcard
  +for /D %%p in (packag?s) do set chk=1
  +if %chk%==0 (
     echo Directory "packages" not found >&2
     ver /invalid 2>NUL
     goto :EOF
   )
   set chk=0
  -for /D %%p in (packages\*) do set chk=1
  -if chk==0 (
  +for /D %%p in (.\packages\*) do set chk=1
  +if %chk%==0 (
     echo Not a single package found for installation >&2
     ver /invalid 2>NUL
     goto :EOF
  
positive.code: rem small subroutines
  rem -----------------
  
  :instpkg
  rem no if / else as libpath may contain parenthesis
  if %failed%==1 goto :EOF
  echo Install package "%1"
  if "%libpathSet%"=="1" "%rexec%" CMD INSTALL -l "%libpath%" ./packages/"%1"
  if not "%libpathSet%"=="1" "%rexec%" CMD INSTALL ./packages/"%1"
  if errorlevel 1 (
    set failed=1
  
negative.code:   )
    echo Ignored option:%1
    shift
    goto parms
  :eofparm
  
  echo Check setup >&2
  
  call :chksetup
  if errorlevel 1 goto :error
  