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/MTd vs. /MT

Started by omyn Apr 18, 2006 at 5:59 PM 2 replies 2.4k views

Original Post

Apr 18, 2006 at 5:59 PM

Anyone know what the differences are between these? (other than their name) I can compile (.net 7.1) my program using /MTd, but i get unresolved external symbol errors when i compile using /MT. any help will be appreciated, thanks

blanky

Apr 18, 2006 at 6:09 PM

Isn't /MTd for debugging? You might be linking to Debug libraries or have other debug settings (debug project settings)

JohnBolton

132

JohnBolton

Apr 18, 2006 at 7:25 PM

/MTd means to link to the debug version of the multi-threaded C run-time library (CRT), and /MT means to link to the release version. You have several choices including single- vs. multi- threaded, static vs. dynamic linkage, and debug vs. release.

Make sure that in each configuration all projects and libraries link to the same CRT library. Otherwise, you will get link errors and warnings. I have found that many external libraries assume multi-threaded dynamic linkage (release and/or debug), so I use that as my default.

omyn

Author

omyn

Apr 18, 2006 at 9:03 PM

thanks so much! that was it, i didnt have release selected ><

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