[CMake] FindxxWidgets.cmake: wrong wxWidgets_INCLUDE_DIRS on UNIX

[Florent Teichteil]

Miguel A. Figueroa-Villanueva a écrit :
> On Wed, Jul 1, 2009 at 2:02 PM, Tyler Roscoe wrote:
>> On Wed, Jul 01, 2009 at 07:23:27PM +0200, Florent Teichteil wrote:
>>> // BEGINNING OF CMakeLists.txt
>>>
>>> set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
>>> find_package(wxWidgets COMPONENTS base core REQUIRED)
>>> include_directories(${wxWidgets_INCLUDE_DIRS})
>>> add_definitions(${wxWidgets_DEFINITIONS})
>>> message(STATUS ${wxWidgets_INCLUDE_DIRS})
>>>
>>> // END OF CMakeLists.txt
>>>
>>> When I run "cmake ." in a terminal window, I get the following output:
>> Don't do in-source builds, for they lead to suffering. Check the FAQ for
>> details.
> 
> This is very good advice, of course...
> 
>>> -- /usr/lib/wx/include/gtk2-unicode-release-2.8/usr/include/wx-2.8
>>> -- Configuring done
>>> -- Generating done
>>>
>>> The first line gives the value of "wxWidgets_INCLUDE_DIRS" which is
>>> obviously wrong. It seems 2 paths have been concatenated without white
>>> space. I think it should be something like
>>> "/usr/lib/wx/include/gtk2-unicode-release-2.8 /usr/include/wx-2.8".
>> Try message(STATUS "${wxWidgets_INCLUDE_DIRS}"). My guess is that
>> variable is a list and the way you are using it in message() is
>> flattening that list.
> 
> This is most likely the case. Thanks Tyler.
> 
> Also, Florent, do you actually have a problem? I mean besides the
> output line not matching what you expect; can you build a simple app?

Thank you for advices!
I tried message(STATUS "${wxWidgets_INCLUDE_DIRS}") that adds a 
semicolon between the paths. I'm not sure that gcc is able to parse 
include paths separated by semicolons.
Anyway, when I try to make the project, gcc complains it can't find 
wxwidgets headers. For instance, the compilation of a source file 
containing the line "#include <wx/wx.h>" gives the following error 
message (in French): "erreur: wx/wx.h : Aucun fichier ou dossier de ce 
type". It means that gcc can't find the <wx/wx.h> include file.

Thanks again, guys!
Florent