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Q191669: PRB: LNK2001: Unresolved External Symbol __chkesp

Article: Q191669
Product(s): Microsoft C Compiler
Version(s): WINNT:6.0
Operating System(s): 
Keyword(s): kbCompiler kbCRT kbVC600
Last Modified: 21-JUL-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- The C Run-Time (CRT), included with:
   - Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 
   - Microsoft Visual C++, 32-bit Professional Edition, version 6.0 
   - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

When building a project with Visual C++ 6.0, you may get the following linker
error:

  error LNK2001: unresolved external symbol __chkesp

CAUSE
=====

The new compiler stack-checking feature requires you to link with the C run-
time library.

RESOLUTION
==========

Either link with one of the C run-time libraries or disable the compiler stack
checking feature (remove /GZ from the compiler switches).

STATUS
======

This behavior is by design.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

Sample Code
-----------

     // test.cpp
     // compile with: cl /GZ t.cpp /link /nod
     void f() {}
     int main ()
     {
        f();
        return 0;
     }

======================================================================
Keywords          : kbCompiler kbCRT kbVC600 
Technology        : kbVCsearch kbAudDeveloper kbCRT
Version           : WINNT:6.0
Issue type        : kbprb

=============================================================================

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