Review Request: Attica will not be found if installed under /usr/local/

[Guy Maurel]

> On 2010-09-17 18:52:17, Alexander Neundorf wrote:
> > /usr/local is part of the default search directories, so it should be found if installed there.
> > I just tested this here locally and it works for me.
> > 
> > If it is not found when installed in /usr/local/, then we have to check what is going wrong there.
> > 
> > Alex
> 
> Guy Maurel wrote:
>     mmmh!
>     I found at http://www.kitware.com/news/home/browse/168:
>     "FIND_LIBRARY and FIND_PATH now look in CMAKE_LIBRARY_PATH and CMAKE_INCLUDE_PATH environment variables in addition to and before the PATH environment variable. "
>     It is what I need, but nothing about a default value for CMAKE_LIBRARY_PATH and CMAKE_INCLUDE_PATH
>     Is it something the user *has* to do itself before running?

Thanks to Alex for the discussion and your questions/helps.

The CMAKE_INCLUDE_PATH give the order to search for:
*First* at /usr/local
*then*  at /usr
This is done (I think) to give a priority to the packages one have self installed. 

At the FindLibAttica.cmake (and other more) there is some lines of code such:
IF (NOT WIN32)
   # use pkg-config to get the directories and then use these values
   # in the FIND_PATH() and FIND_LIBRARY() calls
   FIND_PACKAGE(PkgConfig)
   PKG_CHECK_MODULES(PC_LIBATTICA QUIET libattica)
   SET(LIBATTICA_DEFINITIONS ${PC_ATTICA_CFLAGS_OTHER})
ENDIF (NOT WIN32)

I am using ArchLinux and the pacman-command installs (implicitly) some packages I havn't take care.
One of them was "attica", installed at /usr . The search order is changed.
The cmake works correctly with FindLibAttica.cmake and told me: /usr/include .

*NOW* I would like to ask: What is the reason/strategy of changing the search order in this way?

*MY* problem is now solved.
Thanks


- Guy


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On 2010-09-17 18:08:15, Guy Maurel wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://svn.reviewboard.kde.org/r/5375/
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> 
> (Updated 2010-09-17 18:08:15)
> 
> 
> Review request for kdelibs.
> 
> 
> Summary
> -------
> 
> Some of the cmake/modules/Findxxx.cmake files have extended the search to the directory INCLUDE_INSTALL_DIR
> It is usefull to find the version on had installed just before. Many default installations are /usr/local/
> 
> My proposal is to do the same with Attica.
> 
> 
> Diffs
> -----
> 
>   /trunk/KDE/kdelibs/cmake/modules/FindLibAttica.cmake 1175716 
> 
> Diff: http://svn.reviewboard.kde.org/r/5375/diff
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Guy
> 
>

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