About inconsistent dll linkage

Question

How can I remove this link warning? You can see code segment that causes this warning.

static AFX_EXTENSION_MODULE GuiCtrlsDLL = { NULL, NULL };
//bla bla
//         


        

Answer 1

[ CMake inconsistent dll linkage ]

I encountered the following issue + solution with the __declspec(dllexport) + __declspec(dllimport) :

# # #CMakeLists.txt
add_defintions(-DMYLIB=1)
# The above was the solution...
#    (MYLIB is used in the standard ifdef + define MYLIB_EXPORT syntax)
#  Below: seems to get overruled by other directory's headers: 
set_source_files_properties(  file1.h  file2.h  COMPILE_FLAGS "-DMYLIB=1") 

This was annoying because a number of sources say to use the 'set source file properties' command to get better granularity but the doc is not clear on what happens to file1.h's declares when included from a different directory... better stick with add_definitions( -DMYLIB=1 ) for now!

To catch this problem: in your Foo.cpp file:

#include "export.h"
#if defined(MYLIB)
#if defined(OTHERLIB)
  static_assert(0,"error, check your definitions!");
  // OTHER depends on MY; can't have both of these flags being set!
#endif
#endif
struct  OTHER_EXPORT  foo 
{ 
};