[CMake] msvc postfix conventions

[Jan Woetzel]

Brandon J. Van Every wrote:

> I'm trying to decide reasonable defaults for the various _POSTFIX 
> variables under msvc.  My guesses:
> DEBUG_POSTFIX "d"
> For all I know there may not be many conventions, as keeping debug and 
> release builds in different directories is a common practice.

Brandon,
keep the disadvantage of postfixes in mind:
- using multiple configurations inside one build tree (with MSVS IDE) is 
complicated with postfix
- works only for two configurations, typically Debug and Release because:
- you have to use TARGET_LINK_LIBRARIES command with prefix flags 
"optimized" and "debug"
I see only the advantage of one single "lib" dir.

We decided to go with the "IntDir" subdirectories and it works quite 
well, here.
The libs are put into i.e. lib/debug, lib/release ... lib/fooCfg etc.

Jan.

-- 

  Dipl.-Ing. Jan Woetzel
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  University of Kiel
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