https://metacpan.org/source/VKON/Tcl-1.05/Makefile.PL tries to be helpful by taking non standard arguments ( not ExtUtils::MakeMaker ) 
GetOptions("tclsh=s", \$tclsh,         # Use this tclsh executable as 
+a
                                       # base to find the lib info nee
+ded
       "tclconfig=s", \$tclconfig, # Use the specified Tcl config file
                                       # instead of basing the values 
+on
                                       # the tclsh exe found
       "buildspec", \$buildspec,   # Used with --tclconfig, use the
                                       # build (instead of install) va
+lues
                                       # for determining lib info
       "usestubs!", \$usestubs,    # we want to use the Tcl stubs
                                       # mechanism by default
       "library=s", \$libpath,     # Use this specific Tcl library
       "include=s", \$incpath,     # Use this specific include path
       "define=s", \$defs,         # Use this specific set of defines
      )
    || _die <<EOT;

Usage: perl Makefile.PL [--tclsh <path>] [--tclconfig <path>]
                        [--buildspec] [--nousestubs] [<makemaker opts>
+...]

or for expert compilation:

       perl --library=-l/path/to/tcl(stub).a --include=-I/path/to/tcl/
+include
            --define="-DLIB_RUNTIME_DIR=... -DTCL_LIB_FILE=..."

EOT

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In reply to Re^4: Tk vs Tcl::pTk speed image by Anonymous Monk
in thread Tk vs Tcl::pTk speed image by Anonymous Monk

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