[CMake] cpack and paths too long

[Eric Noulard]

2012/4/20 Andrea Crotti <andrea.crotti.0 at gmail.com>:
> On 04/19/2012 07:00 PM, Eric Noulard wrote:
>>
>> Compiler, Visual Studio something?
>> You run cpack from the command line or from within IDE/Makefile etc....
>>
>
> No compilers used for this project (it's python) and I run from command
> line.
>
> Anyway it might be a good idea also in general so I tried to do it and it
> doesn't find a path,
> but the error is not quite clear, what path is it talking about (because all
> I see there exists)?
>
>
> c:/temp $ cmake -G "MSYS Makefiles"
> e:/git_projs/Minimum_Drag/xyz.application.minimum_drag
> -- PSI found in e:/git_projs/PSI_Hamburg
> -- workspace set to
> e:/git_projs/Minimum_Drag/xyz.application.minimum_drag/../..
> -- copying the runner file with the right substitutions
> -- running: c:/python25/python.exe
>  -p;e:/git_projs/Minimum_Drag/xyz.application.minimum_drag;-w;e:/git_projs/Minimum_Drag/xyz.application.minimum_drag/../..
> -- writing the list of dependencies to egg_list.txt
> -- Configuring done
> -- Generating done
> -- Build files have been written to: C:/temp
> c:/temp $ make xyz.application.minimum_drag_install
> The system cannot find the path specified.
> epd-make: *** [cmake_check_build_system] Error 1
> c:/temp $ make xyz.application.minimum_drag_install VERBOSE=1
> "/c/buildprograms/programs/CMake 2.8/bin/cmake.exe"
> -H/e/git_projs/Minimum_Drag/xyz.application.minimum_drag -B/C/temp
> --check-build-system CMakeFiles/Makefile.cmake 0
> The system cannot find the path specified.
> epd-make: *** [cmake_check_build_system] Error 1

This looks as if it is a **make** error not a CMake one.
Are you able build a simplistic project on this machine?
(try one with which only does install(FILES somefile.txt DESTINATION .) ...)

Is "xyz.application.minimum_drag_install" a custom target of yours?

I did find trace of similar error here
http://www.redantigua.com/msys-win.html

in that case it seems that a bad mix of "make" command from
MSYS or mingw32 or unxutil was the culprit.

is the "epd-make" the one that comes with your MSYS install ?

> PS. And in general I think it's a bit confusing the fact that I need to
> remove manually the CMakeCache
> from the source directory when I run out of tree..
> Couldn't CMake just discard that path when building out of tree?

Nope, it would break backward compatibility, you can dig the ML
for discussion about that "issue".

My opinion is that building in-source is a bad habit that ought to be
discouraged but the fact is,
this is not currently easy to enforce out-of-source:
http://www.cmake.org/Bug/view.php?id=6672

-- 
Erk
Le gouvernement représentatif n'est pas la démocratie --
http://www.le-message.org