S-Lang compile error with MinGW

After a long break from Windows I returned to compiling slrn and
S-Lang under Windows 10. However MinGW's latest tools do not seem to
work well with S-Lang at least. I am compiling S-Lang pre2.3.3-14 and
the error I see is this:

-----------------
gcc -c -DWIN32 -DSLANG_DLL=1 -O2 -W -Wall -o gw32objs/slerr.o  ./slerr.c
./slerr.c:809:10: fatal error: crtdbg.h: No such file or directory
 #include <crtdbg.h>  /* For _CrtSetReportMode */
          ^~~~~~~~~~
compilation terminated.
Makefile:220: recipe for target 'gw32objs/slerr.o' failed
mingw32-make[1]: *** [gw32objs/slerr.o] Error 1
mingw32-make[1]: Leaving directory 'C:/Users/Andrew Strong/Downloads/slang-pre2.3.3-14/src'
Makefile:21: recipe for target 'all' failed
mingw32-make: *** [all] Error 2
-------------------

I have placed the full log here: https://pastebin.com/PHAC7Efq

This is using:

------------------
C:\Users\Andrew Strong>mingw32-make --version
GNU Make 3.82.90
Built for i686-pc-mingw32
Copyright (C) 1988-2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

C:\Users\Andrew Strong>
-----------------

My apologies for placing pretty much the same post on
news.software.readers...

Andrew Strong
-- 
You think that's air you're breathing now?