Question

I have a static S.lib that is used by my D.dll.

I’m trying to use #pragma detect_mismatch to make sure that both were compiled under the same release or debug settings.

I’ve followed Holger Grund’s instructions here
http://boost.2283326.n4.nabble.com/Boost-and-Microsoft-s-SECURE-SCL-td3025203.html

dumpbin on S.lib shows:

 Linker Directives
 -----------------
 /FAILIFMISMATCH:"COMPILED_DEBUG=1"
 /INCLUDE:_dll_impl_interface_mismatch_check
 /DEFAULTLIB:"MSVCRTD"
 /DEFAULTLIB:"OLDNAMES"

I compile D.dll successfully, which should not happen.

dumpbin on D.dll’s D.lib shows:

Linker Directives
-----------------
/FAILIFMISMATCH:"COMPILED_DEBUG=2"
/INCLUDE:_dll_impl_interface_mismatch_check
/DEFAULTLIB:"uuid.lib"
/DEFAULTLIB:"uuid.lib"
/FAILIFMISMATCH:"_MSC_VER=1600"
/FAILIFMISMATCH:"_ITERATOR_DEBUG_LEVEL=2"
/DEFAULTLIB:"msvcprtd"
/DEFAULTLIB:"MSVCRTD"
/DEFAULTLIB:"OLDNAMES"

Any help would be greatly appreciated.

EDIT:

I accidentally defined the symbol ‘dll_impl_interface_mismatch_check’ in BOTH my static library and my consuming DLL. This meant that the symbol was not looked for in the static library S.lib, and the mismatch directive was never found. I think.

Answer 1

I’m just guessing here – I’ll have to experiment with this tonight.

Holger Grund’s instructions are designed for objects that depend on the DLL. In your case the DLL depends on the static lib.

So, I’m guessing that you want the _dll_impl_interface_mismatch_check object to be added to the static lib rather than the DLL. So instead of:

extern "C" const char dll_impl_interface_mismatch_check=0;

cl /c /Zl foo.cpp
lib D.lib foo.obj 

try:

extern "C" const char dll_impl_interface_mismatch_check=0;

cl /c /Zl foo.cpp
lib S.lib foo.obj