Alexander Neundorf wrote:
On Friday 19 February 2010, Luigi Calori wrote:
I would like to have some clarification about module and include
effective search order:
I am in the following situation:
I use (configure) a project that is overriding some CMake standard Find
modules by doing in his main CMakeLists.txt file:
SET(CMAKE_MODULE_PATH "<ProjectModuleFolder>;${CMAKE_MODULE_PATH}")
I would like to being able to override, at configure time the project
modules with mine.
Then the project may get some find-modules which behave differently than what
it expects. Why do you want to do this ?
I am currently working on building a higher level project that combines,
using ExternalProjectAdd, the project (OpenSceneGraph) and some of its
dependencies.
As I am building deps, I would like to change the way the projects find
my deps, and so the need to instruct OSG to use my Find commands.
This would also allow more flexible build customization without need to
patch OSG.
Currently OpenSceneGraph relies upon standard unix deps on Linux and
probably OSX and use pre-built deps on Windows.
This needs different deps be built depending on compiler version
(VC7,VC8,VC9,VC10,Mingw, 32/64) as on windows, even the most common dep
libs (zlib,png,jpeg,freetype,curl) are not available.
I would also like to build static libs if possible
Doing:
cmake -DCMAKE_MODULE_PATH:PATH=<myModuleFolder>
does not work (my files are searched AFTER projects files)
Yes, because the other project appends its apth to the already existing one,
so your ends up at the end.
Is it safe to just change project CMakeLists.txt to
SET(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};<ProjectModuleFolder>")
Or, on older CMake version this could result in getting standard CMake
modules found first?
Everything in CMAKE_MODULE_PATH will be searched before cmake's own module
directory.
Thanks, so suggesting this change to the main project should not harm
other builds, based on older CMake version?
It just allows a grater configurability.
Thanks
Luigi
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