Okay, tried that. Could not get past first line of step 3. These are the errors...

For a dmake.exe I unzipped a source for Strawberry Perl 5.24.2.1, since somebody said TableMatrix built okay for 5.24. I then renamed the fake original as _dmake.exe and copied in the new dmake.exe to the same directory.

C:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>perl MakeFile.PL MAKE=d
+make
### Note: 'Building Outside of Tk itself' Messages are Expected Here #
+###
PPM for perl5.026000
Test Compiling config/signedchar.c
gcc: error: config/signedchar.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compile/Run config/unsigned.c
gcc: error: config/unsigned.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Ksprintf.c
gcc: error: config/Ksprintf.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling -DSPRINTF_RETURN_CHAR config/Ksprintf.c
gcc: error: config/Ksprintf.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
C:/Strawberry/cpan/build/Tk-TableMatrix-1.23-0 does not start with C:/
+Strawberry/perl/site/lib
i.e. building outside Tk itself
C:/Strawberry/cpan/build/Tk-TableMatrix-1.23-0/pTk does not start with
+ C:/Strawberry/perl/site/lib
i.e. building outside Tk itself
Generating Dependencies for MSWin32, win_arch=MSWin32
Test Compiling config/Hstrtoul.c
gcc: error: config/Hstrtoul.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Hstrdup.c
gcc: error: config/Hstrdup.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Hstrcasecmp.c
gcc: error: config/Hstrcasecmp.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Finding dependencies for tkTable.c
Finding dependencies for tkTableCell.c
Finding dependencies for tkTableCellSort.c
Finding dependencies for tkTableCmds.c
Finding dependencies for tkTableEdit.c
Finding dependencies for tkTableTag.c
Finding dependencies for tkTableUtil.c
Finding dependencies for tkTableWin.c
Finding dependencies for TableMatrix.xs

C:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>
[download]

These are the errors...

Yes, that's the same as I get - but, as Anonymous Monk has intimated, you just need to run the remaining commands:

dmake
dmake test
dmake install
[download]

(It's not really necessary to run 'dmake' ahead of 'dmake test' - hence I generally leave out that step.)

Those "error" messages are just part of some configuration testing being done prior to generating the Makefile.
I think their aim is to determine whether Tk::TableMatrix is being built as part of Tk - which it isn't.

Cheers,
Rob

what happens when you run 'dmake'?

As requested, so below is the entire result from running all the commands in sequence despite the first one failing...

c:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>perl Makefile.PL MAKE=d
+make
### Note: 'Building Outside of Tk itself' Messages are Expected Here #
+###
C:\Strawberry\perl\bin\perl.exe is installed in C:\STRAWB~1\perl\lib o
+kay
PPM for perl5.026000
Test Compiling config/signedchar.c
gcc: error: config/signedchar.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compile/Run config/unsigned.c
gcc: error: config/unsigned.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Ksprintf.c
gcc: error: config/Ksprintf.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling -DSPRINTF_RETURN_CHAR config/Ksprintf.c
gcc: error: config/Ksprintf.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
c:/Strawberry/cpan/build/Tk-TableMatrix-1.23-0 does not start with C:/
+Strawberry/perl/site/lib
i.e. building outside Tk itself
C:/Strawberry/cpan/build/Tk-TableMatrix-1.23-0/pTk does not start with
+ C:/Strawberry/perl/site/lib
i.e. building outside Tk itself
Generating Dependencies for MSWin32, win_arch=MSWin32
Test Compiling config/Hstrtoul.c
gcc: error: config/Hstrtoul.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Hstrdup.c
gcc: error: config/Hstrdup.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Test Compiling config/Hstrcasecmp.c
gcc: error: config/Hstrcasecmp.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
Finding dependencies for tkTable.c
Finding dependencies for tkTableCell.c
Finding dependencies for tkTableCellSort.c
Finding dependencies for tkTableCmds.c
Finding dependencies for tkTableEdit.c
Finding dependencies for tkTableTag.c
Finding dependencies for tkTableUtil.c
Finding dependencies for tkTableWin.c
Writing MYMETA.yml and MYMETA.json
Writing MYMETA.yml and MYMETA.json
Finding dependencies for TableMatrix.xs
Generating a dmake-style Makefile
Writing Makefile for Tk::TableMatrix
Writing MYMETA.yml and MYMETA.json

c:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>dmake test
dmake:  Error: -- Configuration file `C:\Strawberry\c\bin\startup\star
+tup.mk' not found

c:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>dmake install
dmake:  Error: -- Configuration file `C:\Strawberry\c\bin\startup\star
+tup.mk' not found

c:\Strawberry\cpan\build\Tk-TableMatrix-1.23-0>
[download]