Problem compiling the engine

Hello,
I'm having some strange errors when I try to compile the engine, I'm using Visual C++ 6, and windows 98, the errors I'm getting are

LINK : warning LNK4001: no object files specified; libraries used
LINK : warning LNK4001: no object files specified; libraries used
Creating library ../lib/out.VC6.DEBUG/opengl2d3d_DEBUG.lib and object ../lib/out.VC6.DEBUG/opengl2d3d_DEBUG.exp
LINK : error LNK2001: unresolved external symbol __DllMainCRTStartup@12
opengl2d3d_DEBUG.exp : error LNK2001: unresolved external symbol _glAccum@8
opengl2d3d_DEBUG.exp : error LNK2001: unresolved external symbol _glActiveTextureARB@4
opengl2d3d_DEBUG.exp : error LNK2001: unresolved external symbol _glAllocateVertexBufferEXT@12
opengl2d3d_DEBUG.exp : error LNK2001: unresolved external symbol _glAlphaFunc@8

It goes on for another 375 itens, all in the opengl2d3d_Debug.exp... Anyone out there has any idea what I can do?
Thanks for the attention and any help...