Helpful for dropping dependencies package dependencies.
- Git only needed if there is a .git folder
- bzip2 only needed by CDVDiso
- CG/GLEW was for zerogs and ZZogl
- jpeg was for ZZogl
.
I also added that EGL_API is also for GSdx in option comment.
* GTK3_API requires a wxWidget that support it too
=> avoid complexe compilation error
* SDL2_API requires a wxWidget without SDL support (wxUSE_LIBSDL = 0)
=> avoid run time crash
SDL check hypothesis: wx is linked against SDL1.2 and not SDL2. It would need to be improved on a distant future
This fixes it for build.sh and when not using build.sh (packaging).
.
Also fix native 32bit build which should also be broken and attempt to
predict the future and fix it for lib32-wx3.0. Worst case the filenames
have to be fixed which is trivial.
.
When wx2.8 support is dropped then only the lib32-wx3.0 IF should remain.
When crosscompilation support gets dropped then the first IF gets deleted
unless we also dropped wx2.8 support then everything gets deleted.
I only had to add "PATH_SUFFIXES SDL2".
.
include is superfluous
SDL2-2.0 is a distro specific convenience symlink. Use the correct one
as before.
.
I probably did this as an artificial way of disabling pkgconfig when cross
compiling and before disabling pkgconfig for all cross compiling but it's
wrong. I thought I had fixed this already.
Tell the user to use CMAKE_TOOLCHAIN_FILE upon failure.
.
Cleanup detectOperatingSystem. Should be the same but adding
GNU and kFreeBSD from Debian and filtering out pre OS X Apple.
.
libaio is linux only. Also check for the correct header since
aio.h is the POSIX one. Both are in /usr/include/ anyway.
Only build core if (Linux AND NOT AIO_FOUND) == false.
.
Use Unix for GTK and X11. Macs has gtk-quartzs and xquartz or native X11.
*BSD, linux, etc should have both.
Even before this pull request it was required to set PKG_CONFIG_PATH
when cross compiling since pkg-config always searches for native
libraries. This would require to backup an already existing ENV
variable if present, detect the distro specific place the pkgconfig folder is,
and restore the original ENV variable if it was present. Cmake as shown in:
.
http://www.cmake.org/gitweb?p=cmake.git;a=commitdiff;h=3df51470
.
added support for this but requires CMAKE_MINIMUM_REQUIRED_VERSION as 3.1
which is kind of strict since it was released 10 days ago.
.
To avoid the ugliness let just avoid pkg-config when cross compiling. This
means only EGL, SDL2 and GTK3 have to be updated since the rest work w/o
pkg-config.
- EGL is fixed with PR #409
- SDL2 is fixed here and it's trivial.
- GTK3 is non-trivial. For this one use pkg-config for native builds since
the .pc file is kept up to date automatically. For cross compilation
use the provided FindGTK3 which I made by using the sed documented
inside the file and updating the dependencies for GTK3. Since I checked
each and every single .pc file to make sure they are up to date this
should have the same behaviour as pkg-config. Prefer the .pc files for
native builds since it does not need to be manually updated and when
the native 64bit port gets finished all the cross compile options should
be removed which is quite easy since most of the code got moved to the
CMAKE_TOOLCHAIN_FILE.
Note:
Cmake Modules are BSD-3-clause therefore GPL compatible.
- Fedora only needs --arch if cross compiling.
+ It's only used to select libdir so i386=i686=i986
- Messages are nice to debug build logs.
.
Everything seems to work unless some other distro broke. Other
distros need to add CMAKE_TOOLCHAIN_FILE or --cross-multilib if
they cross compiled amd64 -> i686.
http://www.vtk.org/Wiki/CMake_Cross_Compilinghttp://www.cmake.org/cmake/help/v3.0/manual/cmake-toolchains.7.html
.
The official way that cmake does cross compiling is via the use of a
CMAKE_TOOLCHAIN_FILE. This has to be given by the user and can't be
included from within a Cmake file since setting up the toolchain has
to be the first thing that happens.
.
After the file is given and validated cmake behaves nicely and all the
workarounds and hacks are not really needed anymore.
.
The consequence of this change is that without this file cmake will
try to build for the HOST architecture as expected and with the file
it will build for the TARGET architecture of the given toolchain. Due to
this remove 64BIT_BUILD_DONT_WORK and just ERROR out if the user tries
in the same way as before.
EGL sometimes is not found. Checklib 1st does
.
string(TOLOWER ${lib} lower_lib)
pkg_search_module(${var} QUIET ${lower_lib})
.
Therefore this part should be equivalent since we always compare lower.
.
This part seems to not find anything and then it does.
.
find_library(${var}_LIBRARIES ${lib})
.
Here it also does not find anything since it tries to find libegl
while the library is called libEGL therefore I changed the name to upper.
to avoid
_internal_message("-- ${lib} not found (miss lib)")
.
It could fail in the unlikely event that someone renamed libEGL to libegl.
This bug is triggered when you combine crosscompiling from amd64 to
i386 with Debian multiarch paths. For other distros it should work with
pkg_search_module normally.
Description: Building with SDL2_API=TRUE is incomplete
SDL_FOUND does not imply SDL2_FOUND
Use check_libs for detection
Only include ${SDL_INCLUDE_DIR} when needed
Use SDL2_LIBRARIES
Author: Miguel A. Colón Vélez
Gregory: add back SDL_BUILDING_LIBRARY
Jonathan Li