Switching to non-debug runtime /MT causes link errors

Question

I'm trying to deploy my executable to another machine so I need non-debug runtime.

Switching to non-debug runtime /MT causes link errors. /Mtd compiles fine. Here's a sampling of the many errors.

1>libcpmtd.lib(_tolower.obj) : error LNK2001: unresolved external symbol _calloc_dbg 1>libcpmtd.lib(locale.obj) : error LNK2001: unresolved external symbol _calloc_dbg 1>libcpmtd.lib(wlocale.obj) : error LNK2001: unresolved external symbol _calloc_dbg 1>libcpmtd.lib(StlCompareStringA.obj) : error LNK2001: unresolved external symbol _free_dbg 1>libcpmtd.lib(locale.obj) : error LNK2001: unresolved external symbol _free_dbg 1>libcpmtd.lib(wlocale.obj) : error LNK2001: unresolved external symbol _free_dbg 1>libcpmtd.lib(xlocale.obj) : error LNK2001: unresolved external symbol _free_dbg 1>libcpmtd.lib(xwcsxfrm.obj) : error LNK2001: unresolved external symbol _free_dbg

If I explicitly tell linker to link with libcmtd.lib, it compiles even with /MT, but what are the consequences of this?

How do I get my code to compile? (without having to do the trick above?)

Edit: I commented out the statements using cout and it compiled.... why...

Answer 1

You say you explicitly force libcmtd.lib as linker input - that is the debug version of the static CRT, and is exactly the source of the conflict with /MT (a switch declaring linkage with the release static CRT).

Remove libcmtd from the linker input altogether and check if it works.

Answer 2

Remove _DEBUG define from C++ preprocessor