[CMake] Problem with target DLL name not matching SWIG dllimport name

[Stephen Torri]

I am using CMAKE_DEBUG_POSTFIX to attach a string to end of each DLL
name being built using Visual Studio 2008. The DLLs have the name that
expect which is the target name + CMAKE_DEBUG_POSTFIX. The problem I
am running into is the SWIG wrapper DLL name does not match the
dllimport flag when building a debug build.

For example the following is an example SWIG module named, example:

SWIG_ADD_MODULE(example python example.i example.cxx)

So with the CMAKE_DEBUG_POSTFIX the name is expected to be

example_d (Debug)

example (Release)

The problem comes in when I set the CMAKE_SWIG_FLAGS. Right now it
contains the "--dllimport example". When I use the built DLLs within
C# the SWIG code works for a release build because the dll name and
the expected name in the code match. Otherwise when I do a debug build
in C# the SWIG code is attempting to load "example.dll" when it has
"example_d.dll" in the directory.

I was wondering what is a work around for this?

My initial guess is that if I could get a handle on the "example_d"
part of the name with a CMAKE variable I could use that in the
CMAKE_SIWG_FLAGS for something like:

SET ( CMAKE_SWIG_FLAGS "--dllimport ${TARGET_NAME}" )

Stephen