WARNING: The sqrt and ** (pow) overloading is buggy
           on ActivePerl. (See the README file.)

##</code><code>##

C:\sisyphusion\Math-LongDouble-0.22>perl Makefile.PL

  WARNING: The sqrt and ** (pow) overloading is buggy
           on ActivePerl. (See the README file.)

Checking if your kit is complete...
Looks good
... Detected uninstalled Perl.  Trying to continue.
Have \_64\active~1.28\lib
Want \temp\activestate--------please-run-the-install-script--------\lib
Warning (mostly harmless): No library found for -lm
Warning (mostly harmless): No library found for -lmoldname
Warning (mostly harmless): No library found for -lkernel32
Warning (mostly harmless): No library found for -luser32
Warning (mostly harmless): No library found for -lgdi32
Warning (mostly harmless): No library found for -lwinspool
Warning (mostly harmless): No library found for -lcomdlg32
Warning (mostly harmless): No library found for -ladvapi32
Warning (mostly harmless): No library found for -lshell32
Warning (mostly harmless): No library found for -lole32
Warning (mostly harmless): No library found for -loleaut32
Warning (mostly harmless): No library found for -lnetapi32
Warning (mostly harmless): No library found for -luuid
Warning (mostly harmless): No library found for -lws2_32
Warning (mostly harmless): No library found for -lmpr
Warning (mostly harmless): No library found for -lwinmm
Warning (mostly harmless): No library found for -lversion
Warning (mostly harmless): No library found for -lodbc32
Warning (mostly harmless): No library found for -lodbccp32
Warning (mostly harmless): No library found for -lcomctl32
Failed to opendir 'C:\TEMP\ActiveState--------please-run-the-install-script--------\lib\CORE' to find header files:
 No such file or directory at C:/_64/ActiveState-5.28/site/lib/ExtUtils/MM_Any.pm line 3049.

##</code><code>##

sub _warn {
    my($msg) = @_;
    unless (-t STDOUT) {
	print "\n$msg\n";
	return;
    }
    require Win32::Console;
    .....