• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 273
  • Last Modified:

LNK2001: undefined external "_main"

Whenever I try to build the example WSOCK from the MS VC++ v4.2 samples\SDK\WIN32 folder, it will not link, claiming that "_main()" is undefined.  I have followed the instructions for building a multithreaded application in the help file, which involves including the LIBCMT.LIB library, which would appear to cause this problem.  As a windows program, there is no main() function, just a WinMain() function.
How do I avoid/get around this problem?
0
pdw
Asked:
pdw
1 Solution
 
chensuCommented:
I compiled it with MS VC++ v4.2, it produced 0 error(s), 0 warning(s). Everything is fine. Use the makefile provided by the example, MS VC++ v4.2 creates .mak and .mdp for you.

0
 
pdwAuthor Commented:
Thanks for the reply.  I did manage to get it to link by constructing the project from the makefile, and from this I figured out what on the linker command line was wrong - for some reason it had decided that this was a console app.  doh!  I'm new to VC.....

Thanks!
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now