Update: I removed the compiler options, so that worked. - They were not under "Compiler Flags" they were listed under "Other options" - mentioned mostly for anyone who reads this thread after me.
Now my problem is that Borland Compiler doesn't like GL.H - but I'm not sure where to seek for help on that
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1153: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1154: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1153: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1154: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1155: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1154: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1155: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1156: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1155: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1156: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1157: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1156: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1157: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1158: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1157: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1158: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1159: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1158: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1159: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1160: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1159: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1160: Declaration syntax error
Error E2238 d:\Borland\BCC55\include\gl/gl.h 1161: Multiple declaration for 'WINGDIAPI'
Error E2344 d:\Borland\BCC55\include\gl/gl.h 1160: Earlier declaration of 'WINGDIAPI'
Error E2141 d:\Borland\BCC55\include\gl/gl.h 1161: Declaration syntax error
Error E2228 d:\Borland\BCC55\include\gl/gl.h 1161: Too many error or warning messages