Transition to EM64T from IA32

[mattsdad]

In attempting to transition to EM64T compilations, I cannot get Visual Studio to link. The error message says:

Link: error: problem during multi-file optimization compilation (code 1)

Does EM64T need to have different optimization flags set than IA32? Which ones?

[Steven_L_Intel1]

Usually when you see this error it means that something went wrong during compilation - were there no other error messages?

Intel 64 (formerly EM64T) generally uses the same optimization switches as IA-32 except that some of the older /Qx options are not supported. /QxW is the default in 10.0.

You might also see this message if you were trying to link in corrupted libraries.

[mattsdad]

I did a clean before the build and there were no other error messages. The external libraries being used are the same ones that were used for the IA32 build. Do I need to do something special to the libraries before using them?

[Steven_L_Intel1]

Yes, you have to rebuild them using the "EM64T" compiler.

[mattsdad]

OK, I'll see if the providers of the libraries have versions that areforEM64T. Thanks!