The error listed was the tail end (I assume the relevant portion) of the file build.log but here below I'll paste in the whole thing.
cpanm (App::cpanminus) 1.7043 on perl 5.026000 built for MSWin32-x64-m
+ulti-thread
Work directory is C:\Users\gan/.cpanm/work/1500635987.10348
You have make C:\Strawberry\c\bin\gmake.exe
You have LWP 6.26
Falling back to Archive::Tar 2.26
Searching Tk::TableMatrix () on cpanmetadb ...
--> Working on Tk::TableMatrix
Fetching http://www.cpan.org/authors/id/C/CE/CERNEY/Tk-TableMatrix-1.2
+3.tar.gz
-> OK
Unpacking Tk-TableMatrix-1.23.tar.gz
Entering Tk-TableMatrix-1.23
META.yml/json not found. Creating skeleton for it.
Configuring Tk-TableMatrix-1.23
Running Makefile.PL
### Note: 'Building Outside of Tk itself' Messages are Expected Here #
+###
PPM for perl5.026000
Test Compiling config/signedchar.c
C:\Strawberry\perl\bin\perl.exe is installed in C:\STRAWB~1\perl\lib o
+kay
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:/Users/gan/.cpanm/work/1500635987.10348/Tk-TableMatrix-1.23 does not
+ start with C:/Strawberry/perl/site/lib
i.e. building outside Tk itself
C:/Users/gan/.cpanm/work/1500635987.10348/Tk-TableMatrix-1.23/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.
Extracting mm.h
Extracting tkTable.c
Extracting tkTable.h
Extracting tkTableCell.c
Extracting tkTableCellSort.c
Extracting tkTableCmds.c
Extracting tkTableEdit.c
Extracting tkTableTag.c
Extracting tkTableUtil.c
Extracting tkTableWin.c
Extracting tkTableversion.h
Extracting version.h
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 gmake-style Makefile
Writing Makefile for Tk::TableMatrix
Writing MYMETA.yml and MYMETA.json
-> OK
Checking dependencies from MYMETA.json ...
Checking if you have ExtUtils::MakeMaker 0 ... Yes (7.24)
Checking if you have Tk 800.022 ... Yes (804.033)
Building and testing Tk-TableMatrix-1.23
cp TableMatrix.pm blib\lib\Tk\TableMatrix.pm
AutoSplitting blib\lib\Tk\TableMatrix.pm (blib\lib\auto\Tk\TableMatrix
+)
cp TableMatrix/Spreadsheet.pm blib\lib\Tk\TableMatrix\Spreadsheet.pm
cp TableMatrix/SpreadsheetHideRows.pm blib\lib\Tk\TableMatrix\Spreadsh
+eetHideRows.pm
cd pTk && gmake
gmake[1]: Entering directory 'C:/Users/gan/.cpanm/work/1500635987.1034
+8/Tk-TableMatrix-1.23/pTk'
gmake[1]: *** No rule to make target '..\blib\arch\Tk\pTk\.exists', ne
+eded by 'config'. Stop.
gmake[1]: Leaving directory 'C:/Users/gan/.cpanm/work/1500635987.10348
+/Tk-TableMatrix-1.23/pTk'
gmake: *** [Makefile:1171: pTk/libpTk.a] Error 2
-> FAIL Installing Tk::TableMatrix failed. See C:\Users\gan\.cpanm\wor
+k\1500635987.10348\build.log for details. Retry with --force to force
+ install it.
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