First I actually gave you a ++ as your point was perfectly valid and I was far to lazy to try to get Borland to work (been there before). Someone downvoted every post on this node for whatever reason (just noted on update). Not my malice I'm afraid. But just to pick nits about the define. It is there, and must be there in your Borland compile. I have resorted to syntax highlighing ;-)

C:\>perl -MExtUtils::Embed -e ccopts -e ldopts
-tWD  -L"c:\perl\lib\CORE"  -L"C:\borland\bcc55\lib" -Gn  C:\perl\lib\CORE\perl58.lib 
C:\borland\bcc55\lib\import32.lib C:\borland\bcc55\lib\cw32mti.lib
-O2 -D_RTLDLL -DWIN32 -DHAVE_DES_FCRYPT -D_MT -D__USELOCALES__ -D_WIN32_WINNT=0
x0410 -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS  -I"C:\perl\lib\CORE"
C:\>