I think your question make sense, I would be interested to know proposed
solutions, as likely have similar problems.
I' m far from being a cmake guru, but I like SuperBuild pattern as well .
I would do these steps:
0) define where are on the different platform the sources of the SDL
library you want ( is it http://www.libsdl.org/download-1.2.php ?)
also you should think if is likely to find it already installed
and you want to let your users to use it
1) test the currently available FindSDL.cmake with latest cmake release
with find_package(SDL) and see if it is working on all target platforms.
If it is not suitable, build one which fits your need.
2) build your simple project hello world by using find_package(SDL),
eventually using your own FindSDL.cmake
3) build one hello_world_SDL_superbuild project which
find_package(SDL)
if(NOT SDL_FOUND)
add_external_project(SDL
..............
..............
)
)
add_external_project(HELLO_WORLD_SDL
.................
.................
DEPENDS SDL
)
If the SDL external project has an INSTALL_PREFIX path that is reported
inside as CMAKE_PREFIX_PATH, the find should work in both situations
when everything works fine, it is likely that your SDL external project
as well as your Find_SDL.cmake could be of interest to others ;-)
If the cmake gurus agree that this form of SuperBuild pattern is the
right one, it could be good to develop it as an example, with proper
FindSDL.cmake
On 04/02/2013 15.14, Ansis Ma-lin,s( wrote:
It looks like I'm still asking the wrong questions.
As a last resort, here's my specific problem: I want to compile and
run a hello world SDL2 application on Windows, Linux, and OS X -
purely as an exercise in CMake. How would YOU do this?
SDL2 only exists in source form in their repository.
This is my main.cpp:
#include <SDL.h>
int main(int argc, char** argv)
{
if (SDL_Init(SDL_INIT_VIDEO) < 0) printf("FAILURE\n");
else printf("SUCCESS\n");
SDL_Quit();
return 0;
}
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Luigi Calori
SuperComputing Applications and Innovation Department
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