This attempts to organize all needed items and places appropriate defines
in a single location. Redundant comparisons/defines were removed when noticed.
A few caveats, however:
* This may be better targeted towards the 5_1_0 branch instead of master right now.
* Cmake will run a little slower on configuration/generation now. That's due to the sanity checks it runs.
* There are some more checks to be added later, but this should be a solid start.
Thanks to the [libical](https://github.com/libical/libical) project for inspiration.
This way if anyone wants to wipe their entire Build directory, it won't break entirely.
I am not responsible if anyone wipes the CMake folder. That is definitely not supported.
* Restore Windows installing to `C:\Games` by default.
* Restore Windows installing to the `Program` subdirectory.
* Use actual newlines in the `Build` documentation files.
* Remove the text that says that cmake is unstable.
There are two targets you may not be familiar with, `install` and `package`.
* For Linux, `install` now defaults to `/usr/local`, but you can set it back to `/opt` with `cmake -DCMAKE_INSTALL_PREFIX=/opt` if you wish.
* For Windows, `install` may not work, but this is not a target you would want usually.
* For Linux, `package` has not been tested yet. It will likely create an archive file of what is installed.
* For Windows, `package` will create an NSIS package that can be used to install StepMania. One minor change as a result is that the binary and companion dlls will be placed in `bin` instead of `Program` now, but it makes no difference code-wise.
Mac OS X users: for now, use the `dmg` target instead.
This commit does *not* deprecate the original nsi script yet. The Texture Font Generator program has not been addressed yet.
* Replace `string(CONCAT ...)` with an equivalent call for the cmake 2.8.12 users.
* Use `execute_process` instead of the deprecated `exec_program`. This will work regardless of version (assuming the minimum is met at least).
This should address issue #549.
* Disable warning output during configuration.
* Allow users to turn on warnings for ffmpeg and other internal projects.
* Add a new variable for easier ffmpeg version migration if we ever
* pursue that.
tl-dr: view the Build directory to see.
This is intended to replace the project files that we presently maintain
so that only a single set is needed instead of multiples.
The following setups were used for testing:
* Windows 8 and Visual Studio 2013 Desktop Express
* Windows 7 and Visual Studio 2012
* Mac OS X Mavericks and Xcode
* Ubuntu and makefiles
* Fedora 21 and makefiles
All three operating systems can generate projects, compile, link, and
run. Windows and Mac OS X users will find their compiled binary in the
same location as before, but Linux users will be surprised: it goes
straight into the root directory, along with a symlinked GtkModules.so
as appropriate. There is no more need for a manual symlinking step.
Known issues:
* At this time, MinGW likely does not work. Extra time will be needed.
* The WITH_JPEG option may go away, and we'll just always require it.
* Some linux libraries can use the system equivalents, but that is not up yet.
For more information, check out the Build directory.
Jason Felds