C:\strawberry\perl\bin>perl -v

This is perl, v5.10.0 built for MSWin32-x86-multi-thread

Copyright 1987-2007, Larry Wall

##</code><code>##

cpan> install Tcl
Running install for module 'Tcl'
Running make for V/VK/VKON/Tcl-1.00.tar.gz
Checksum for C:\strawberry\cpan\sources\authors\id\V\VK\VKON\Tcl-1.00.tar.gz ok
Scanning cache C:\strawberry\cpan\build for sizes
...........-----------------------------------------------------------------DONE

DEL(1/13): C:\strawberry\cpan\build\PAR-Packer-1.008-waHY5l
DEL(2/13): C:\strawberry\cpan\build\PAR-Packer-1.008-waHY5l.yml
DEL(3/13): C:\strawberry\cpan\build\Tcl-1.00-B88ybd
DEL(4/13): C:\strawberry\cpan\build\Tcl-1.00-B88ybd.yml
DEL(5/13): C:\strawberry\cpan\build\Tkx-1.09-j36K2e
DEL(6/13): C:\strawberry\cpan\build\Tcl-Tk-0.97-r94a3Y.yml
DEL(7/13): C:\strawberry\cpan\build\Tcl-Tk-0.97-r94a3Y
DEL(8/13): C:\strawberry\cpan\build\Tkx-1.09-j36K2e.yml
DEL(9/13): C:\strawberry\cpan\build\Tcl-1.00-P0ip0t
DEL(10/13): C:\strawberry\cpan\build\Tcl-1.00-P0ip0t.yml
DEL(11/13): C:\strawberry\cpan\build\Tcl-1.00-a2wn2v
DEL(12/13): C:\strawberry\cpan\build\Tkx-1.09-wzWQ1G
DEL(13/13): C:\strawberry\cpan\build\Tkx-1.09-wzWQ1G.yml

  CPAN.pm: Going to build V/VK/VKON/Tcl-1.00.tar.gz

tclsh=C:/Tcl/bin/tclsh.exe
tclConfig.sh=C:/Tcl/lib/tclConfig.sh
tcl_library=C:/Tcl/lib/tcl8.5
tcl_version=8.5
LIBS   = -LC:/Tcl/lib -ltcl85
INC    = -IC:/Tcl/include
DEFINE =
Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -ltcl85
Writing Makefile for Tcl
cp Tcl.pm blib\lib\Tcl.pm
C:\strawberry\perl\bin\perl.exe C:\strawberry\perl\lib\ExtUtils\xsubpp  -typemap
 C:\strawberry\perl\lib\ExtUtils\typemap -typemap typemap  Tcl.xs > Tcl.xsc && C
:\strawberry\perl\bin\perl.exe -MExtUtils::Command -e mv Tcl.xsc Tcl.c
Please specify prototyping behavior for Tcl.xs (see perlxs manual)
gcc -c  -IC:/Tcl/include        -s -O2 -DWIN32 -DHAVE_DES_FCRYPT -DPERL_IMPLICIT
_CONTEXT -DPERL_IMPLICIT_SYS -fno-strict-aliasing -DPERL_MSVCRT_READFIX -s -O2
  -DVERSION=\"1.00\"    -DXS_VERSION=\"1.00\"  "-IC:\strawberry\perl\lib\CORE"
 Tcl.c
Tcl.xs:126: error: initializer element is not constant
dmake.EXE:  Error code 129, while making 'Tcl.o'
  VKON/Tcl-1.00.tar.gz
  C:\strawberry\c\bin\dmake.EXE -- NOT OK
Running make test
  Can't test without successful make
Running make install
  Make had returned bad status, install seems impossible

cpan>