Creating DLL. Do not want to link to a static LIB similar to MAC.

[Syed_R_]

I am creating a DLL that has some functions that are in a separate static library (.LIB file).

 In Linux and Mac, I can create the .so (shared object) without linking to the static library. Linux is straightforward. In Mac, I do the following:

libtool -dynamic -undefined suppress -flat_namespace -macosx_version_min 10.7 -o PluginSystem/Plugins/VerificationPlugin.fortran.so PluginSystem/Plugins/VerificationPlugin.fortran.o

This gives me a .so file without the need of the static library.

How can I do this in Windows. Is there a setting that can let me not link to the external procedures that are present in the static library? Please help!

[Steven_L_Intel1]

Windows doesn't allow you defer linking to a static library for references in a DLL.
 

[Syed_R_]

Thanks Steve for the information that Windows doesn't allow to defer linking to a static library for references in a DLL.

Here is my problem now.

I have a static library called aStatic.lib that was created with Runtime library: Debug Multithreaded

I have a bDynamic.dll that was linked with aStatic.lib with Runtime library: Debug Multithreaded

I now want my test program to link with both aStatic.lib and bDynamic.dll. My test program is with Runtime library: Debug Multithreaded

The bDynamic.dll. is dynamically loaded and consumed with functions like LoadLibrary and GetProcAddress.

Everything looks fine except that I hit a HEAD error:  "Debug Assertion Failed" - dbgheap.c Line 1424, Expression _pFirstBlock==pHead

The above setup work perfectly fine in Linux and Mac with .so files (instead of dll as in Windows).

I don't know what setting in IFORT Visual Studio to change now. Please help!

[Steven_L_Intel1]

You need to change the runtime library in both the static library and DLL projects to "Multithreaded DLL" (Debug for the Debug configuration if you wish, non-debug for the Release configuration.) The way you have it, you have two copies of the run-time libraries that don't talk to each other, leading to errors such as this.

[Syed_R_]

Thanks Steve. So I should have Multithreaded DLL set as Runtime library for all the THREE projects. Right? i.e. Static Library project, DLL project, and the test project.

[Steven_L_Intel1]

Yes.

[Syed_R_]

OK, I am getting this error:

LIBCMT.lib(ieee87.obj) : error LNK2005: __clearfp already defined in MSVCRT.lib(MSVCR110.dll)

When I place MSVCRT.lib in the Ignore Library list, this error goes away. However, it seems that the "multiple copies of the run-time libraries that don't talk to each other" is still there. Any ideas?

[Steven_L_Intel1]

You need to recompile all the sources and make sure that the setting for the runtime library is the same in each. ieee87.obj is still referencing the static libraries.