You're probably linking against a VC compiled static library. Don't copy opengl32.lib from platform SDK or VC installation directory to BCC installation folder. They are incompatible with each other.
I've made couple of changes to the OpenGL wizard which will fix linking problem when BCC is used. Here is the log from my test sample when compiled with BCC.
-------------- Build: Debug in TestGL ---------------
[ 50.0%] Compiling: main.c
main.c:
Warning W8057 main.c 110: Parameter 'hPrevInstance' is never used in function __stdcall WinMain(HINSTANCE__ *,HINSTANCE__ *,char *,int)
Warning W8057 main.c 110: Parameter 'lpCmdLine' is never used in function __stdcall WinMain(HINSTANCE__ *,HINSTANCE__ *,char *,int)
[100.0%] Linking executable: bin\Debug\TestGL.exe
Process terminated with status 0 (0 minutes, 0 seconds)
0 errors, 2 warnings
Please wait for the next nightly release. Your problem should get solved.
Regards,
Biplab