[cmake, tools] update CPMUtil and add support for CPMUtil bundled Qt, module updates, cleanups (#3289)

Support for bundled Qt, not through aqtinstall but rather my CI. Multimedia is
implemented too, works on both Windows and Linux, though we don't
actually use it so it doesn't really matter. Contains Declarative and all that so the Quick frontend will work once it becomes a thing.

Some options have changed, notably w.r.t LTO and faster
linker, which are now handled directly in the modules.

CPMUtil also has support for custom dirs (`PackageName_CUSTOM_DIR`) now. Probably most useful for adding external fragment shaders and whatnot.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3289

src/dynarmic/CMakeLists.txt

@@ -38,7 +38,6 @@ CMAKE_DEPENDENT_OPTION(DYNARMIC_USE_LLVM "Support disassembly of jitted x86_64 c
 
 option(DYNARMIC_INSTALL "Install dynarmic headers and CMake files" OFF)
 option(DYNARMIC_USE_BUNDLED_EXTERNALS "Use all bundled externals (useful when e.g. cross-compiling)" OFF)
-option(DYNARMIC_ENABLE_LTO "Enable LTO" OFF)
 
 # Set hard requirements for C++
 set(CMAKE_CXX_STANDARD 20)
@@ -115,10 +114,6 @@ endif()
 
 find_package(Boost 1.57 REQUIRED)
 find_package(fmt 8 CONFIG)
-
-# Pull in externals CMakeLists for libs where available
-add_subdirectory(externals)
-
 find_package(mcl 0.1.12 REQUIRED)
 
 if ("arm64" IN_LIST ARCHITECTURE OR DYNARMIC_TESTS)

src/dynarmic/externals/CMakeLists.txt

@@ -1,34 +0,0 @@
-# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-include(CPMUtil)
-
-# Always build externals as static libraries, even when dynarmic is built as shared
-set(BUILD_SHARED_LIBS OFF)
-set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-set_property(DIRECTORY PROPERTY EXCLUDE_FROM_ALL ON)
-
-# Allow options shadowing with normal variables when subproject use old cmake policy
-set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
-
-# Disable tests in all externals supporting the standard option name
-set(BUILD_TESTING OFF)
-
-# For libraries that already come with a CMakeLists file,
-# simply add the directory to that file as a subdirectory
-# to have CMake automatically recognize them.
-
-# biscuit
-
-if ("riscv" IN_LIST ARCHITECTURE)
-    AddJsonPackage(
-        NAME biscuit
-        BUNDLED_PACKAGE ${DYNARMIC_USE_BUNDLED_EXTERNALS}
-    )
-endif()
-
-# mcl
-AddJsonPackage(
-    NAME mcl
-    BUNDLED_PACKAGE ${DYNARMIC_USE_BUNDLED_EXTERNALS}
-)

src/dynarmic/externals/cpmfile.json

@@ -1,21 +0,0 @@
-{
-    "biscuit": {
-        "repo": "lioncash/biscuit",
-        "tag": "v%VERSION%",
-        "hash": "1229f345b014f7ca544dedb4edb3311e41ba736f9aa9a67f88b5f26f3c983288c6bb6cdedcfb0b8a02c63088a37e6a0d7ba97d9c2a4d721b213916327cffe28a",
-        "version": "0.9.1",
-        "git_version": "0.19.0"
-    },
-    "mcl": {
-        "version": "0.1.12",
-        "repo": "azahar-emu/mcl",
-        "sha": "7b08d83418",
-        "hash": "9c6ba624cb22ef622f78046a82abb99bf5026284ba17dfacaf46ac842cbd3b0f515f5ba45a1598c7671318a78a2e648db72ce8d10e7537f34e39800bdcb57694",
-        "options": [
-            "MCL_INSTALL OFF"
-        ],
-        "patches": [
-            "0001-assert-macro.patch"
-        ]
-    }
-}

src/dynarmic/src/dynarmic/CMakeLists.txt

@@ -395,7 +395,3 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
     target_compile_definitions(dynarmic PRIVATE FMT_USE_WINDOWS_H=0)
 endif()
 target_compile_definitions(dynarmic PRIVATE FMT_USE_USER_DEFINED_LITERALS=1)
-
-if (DYNARMIC_ENABLE_LTO)
-    set_property(TARGET dynarmic PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
-endif()