11 minutes ago, Steve_Segreto said:I suggest you go back to Borland 4.0 and make the changes I suggested and see if you still get that linker error. Like I said, you made the wrong decision to get around 'regs.w undefined' by changing toolchains into the future. You want to play in 1993? Stay in 1993, don't fast forward your tools past the publish date of the book's source code or you will get into undefined territory.
It seems like the author in his effort to support both major DOS development toolchains of the 1993-1994 timeframe accidentally made it so some of his code requires both Borland and Open Watcom to be installed at the same time to be built.
This is Borland C 4.0...
I also have Watcom. But the code for the Watcom-compiled library has a copyright claim on it, which the book says is off limits. The Borland one, according to the book, belongs to anyone who owns the CD.
I will stay with Borland 4.