[CMake] 2.8.11rc1 CMAKE_LINKER and CMAKE_OBJCOPY sporadically vanishing

[Nils Gladitz]

I think I found the problem.

My client script wrote a new CMakeCache.txt (with initial settings) on 
every run and therefor also overwrote it in continuous builds if it 
already existed.
In prior CMake versions this seemed to have worked but I'm guessing now 
some piece of information is made persistent outside of CMakeCache.txt 
which prevents CMAKE_OBJCOPY and CMAKE_LINKER from being set again.

I can easily work around it by not writing a new cache if one is already 
available or appending rather than overwriting.

Nils

On 03/21/2013 10:41 AM, Nils Gladitz wrote:
> I am trying out CMake 2.8.11rc1 on windows and linux continuous build 
> clients.
>
> During clean full rebuilds everything seems to work fine.
> During incremental "Continuous" builds with reused build directories 
> however CMAKE_OBJCOPY (on linux gcc; used by me manually) and 
> CMAKE_LINKER (on windows MSVC; used by the static link step) sometimes 
> seem to go missing (the variables are suddenly empty?).
>
> I haven't been able to reliably reproduce or find the issue behind it 
> but at least the CMAKE_OBJCOPY problem seems to have gone away by me 
> manually including CMakeFindBinUtils in the context where I used it.
>
> When CMAKE_LINKER goes empty I get Dashboard (CDash) errors like this:
>     Command: "/lib" "/nologo" [...] <- notice the missing linker 
> executable name at the beginning
>     Exit Condition: Error administrating child process: The parameter 
> is incorrect
>
> Nils
> -- 
> Nils Gladitz, B.Sc.
> DICOM, Konnektivität und Entwicklung
>
> Scivis wissenschaftliche Bildverarbeitung GmbH
> Bertha-von-Suttner-Str. 5
> D-37085 Göttingen
> GERMANY
> Handelsregister Nr. / Trade Register No. B3100 Göttingen
> Geschäftsführer / Managing Directors Dr. Gernot Ebel, Dr. Uwe Engeland
>
> Tel: 0049 (0)551 634181-28
> E-Mail:gladitz at scivis.de
> Web:www.scivis.de  


-- 
Nils Gladitz, B.Sc.
DICOM, Konnektivität und Entwicklung

Scivis wissenschaftliche Bildverarbeitung GmbH
Bertha-von-Suttner-Str. 5
D-37085 Göttingen
GERMANY
Handelsregister Nr. / Trade Register No. B3100 Göttingen
Geschäftsführer / Managing Directors Dr. Gernot Ebel, Dr. Uwe Engeland

Tel: 0049 (0)551 634181-28
E-Mail: gladitz at scivis.de
Web: www.scivis.de

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