Now the time for importing the kitty.config module has been halved, from
16ms from 32ms on my machine. Also, the new architecture will eventually
allow for auto generating a bunch of python-to-C boilerplate code.
Apparently on X11 the maximum icon size is 128x128. 256x256 is too
large for the X11 protocol because the X server unserializes the icons
using "unsigned long" which is 64 bits on Linux. So we have to use
64bits per pixel instead of 32, with 32bits padded to 0.
While there I also got rid of the kitty.rgba file replacing it with a
128x128 PNG file.
Fixes#3260
While developing the previous PR (https://github.com/kovidgoyal/kitty/pull/3043), I was using more compiler command line arguments, one of which was `-MMD`. This caused the .d file to be created. Without this argument, there is no need to create a temporary directory.
For some reason it can happen that the `UserNotifications` framework exists but the `UserNotifications/UserNotifications.h` header doesn't.
Closes https://github.com/kovidgoyal/kitty/issues/3042.
This allows compiling Objective-C files.
The temporary directory is needed because clang would try to write to `/dev/null.d`, which would obviously fail.
The new User Notifications Framework is only available on macOS 10.14 and above, while the old NSUserNotification API is deprecated in macOS 11 (Big Sur) and will probably be removed in the future.
This commit compiles a simple test program to see if the Framework is available and then uses either the new or the old API.
When piping the output of `setup.py` to another program, that program cannot usually deal with escape sequences well. To fix this, output the compilation progress on new lines instead of overwriting the current line.
Disabling Link Time Optimization is useful for Nix on Darwin because LTO is broken there and has been for a long time, see https://github.com/NixOS/nixpkgs/pull/19312.
This is currently worked around in the Nix package with a patch that removes the lines that add -flto to the compiler flags.
