[CMake] Unknown CMake command "UNSET".

[Aaron_Wright at selinc.com]

I didn't mean to imply that CMake itself was a pain to build or use on 
linux. I work in a pretty controlled environment that needs to be 
reproducible. I use debootstrap to create this environment, thus, 
everything is a nice little deb package. The destro is hardy, which is a 
little old, and so the latest backport was version 2.6.2. To get a new 
version of CMake I'd have to do the backport myself, which isn't too hard. 
I'd have to create the deb package and stuff it in my repo. All steps I 
was hoping to avoid.

It might be worth using 2.8, so I could go through the effort.

Thanks for providing a work-around.
---------------------------------------------------------
Aaron Wright



Alexander Neundorf <a.neundorf-work at gmx.net> 
Sent by: cmake-bounces at cmake.org
01/04/2010 10:45 AM
Please respond to
a.neundorf-work at gmx.net


To
cmake at cmake.org
cc
Aaron_Wright at selinc.com
Subject
Re: [CMake] Unknown CMake command "UNSET".






On Monday 04 January 2010, Aaron_Wright at selinc.com wrote:
> I'm not trying to do anything too fancy, just trying to call:
>
> UNSET(<variable> CACHE)
>
> It works with MSVC, but in linux I get:
>
> Unknown CMake command "UNSET".
>
> Am I missing something? Linux is version 2.6.2, and MSVC is 2.6.4. I'm

http://www.cmake.org/Wiki/CMake_Released_Versions

unset() exists since 2.6.3:
http://www.cmake.org/Wiki/CMake_2.6.3_Docs
http://www.cmake.org/Wiki/CMake_2.6.2_Docs

In many cases a 
set(FOO NOTFOUND CACHE STRING "docs..." FORCE)
(or FALSE or "" instead of NOTFOUND) is also good enough.

> asking first because I don't want to update the linux version, as that 
is
> difficult.

You can just download the binary packages for Linux available here:
http://www.cmake.org/cmake/resources/software.html
(http://www.cmake.org/files/v2.8/cmake-2.8.0-Linux-i386.tar.gz), and 
unpack it 
somewhere on your machine (e.g. in /opt/) and then call this cmake 
executable 
directly.

Alex
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