[cmake] more modules, general "cleanup" (#3126)

Successor to that old MoltenVK PR. Does a lot of cleanups within root CMakeLists.txt, hands over MoltenVK and VulkanValidationLayers to CPMUtil, and separates out common operations into my modules.

Hopefully reduces the monstrosity that is root CMakeLists.txt. Please test:

- builds on all platforms
- VulkanValidationLayers

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3126
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
This commit is contained in:
crueter 2025-12-04 06:00:58 +01:00
parent 1d2b9de496
commit 18135424df
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21 changed files with 697 additions and 638 deletions

17
externals/cmake-modules/UseLTO.cmake vendored Normal file
View file

@ -0,0 +1,17 @@
# SPDX-FileCopyrightText: Copyright 2025 crueter
# SPDX-License-Identifier: GPL-3.0-or-later
## UseLTO ##
# Enable Interprocedural Optimization (IPO).
# Self-explanatory.
include(CheckIPOSupported)
check_ipo_supported(RESULT COMPILER_SUPPORTS_LTO)
if(NOT COMPILER_SUPPORTS_LTO)
message(FATAL_ERROR
"Your compiler does not support interprocedural optimization"
" (IPO).")
endif()
set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ${COMPILER_SUPPORTS_LTO})