[cmake] fix freebsd and openbsd, remove CPMUtil Eden copyright (#496)

CPMUtil is technically a completely separate project created and maintained solely by me, so it should actually be copyrighted to me

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/496
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

CMakeLists.txt

@@ -44,6 +44,13 @@ if (PLATFORM_SUN)
     endif()
 endif()
 
+# Needed for FFmpeg w/ VAAPI and DRM
+if (PLATFORM_OPENBSD)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I/usr/X11R6/include")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/usr/X11R6/include")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L/usr/X11R6/lib")
+endif()
+
 # Detect current compilation architecture and create standard definitions
 # =======================================================================
 
@@ -88,7 +95,7 @@ message(STATUS "Target architecture: ${ARCHITECTURE}")
 
 if (MSVC AND ARCHITECTURE_x86)
     message(FATAL_ERROR "Attempting to build with the x86 environment is not supported. \
-        This can typically happen if you used the Developer Command Prompt from the start menu;\
+        This can typically happen if you used the Developer Command Prompt from the start menu; \
         instead, run vcvars64.bat directly, located at C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Auxiliary/Build/vcvars64.bat")
 endif()
 
@@ -122,7 +129,7 @@ include(CMakeDependentOption)
 include(CTest)
 
 # Disable Warnings as Errors for MSVC
-if (CXX_CL)
+if (MSVC AND NOT CXX_CLANG)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3 /WX-")
 endif()
 
@@ -485,13 +492,32 @@ else()
     find_package(Opus 1.3 MODULE REQUIRED)
     find_package(ZLIB 1.2 REQUIRED)
     find_package(zstd 1.5 REQUIRED MODULE)
-    find_package(Boost 1.57.0 REQUIRED context system fiber)
-    find_package(MbedTLS 3)
+
+    # wow
+    if (PLATFORM_LINUX)
+        find_package(Boost 1.57.0 REQUIRED headers context system fiber)
+    else()
+        find_package(Boost 1.57.0 REQUIRED)
+    endif()
+
+    # OpenBSD does not package mbedtls3 (only 2)
+    if (PLATFORM_OPENBSD)
+        AddJsonPackage(mbedtls)
+    else()
+        find_package(MbedTLS 3 REQUIRED)
+    endif()
 
     find_package(VulkanUtilityLibraries REQUIRED)
     find_package(VulkanHeaders 1.3.274 REQUIRED)
+
+    # FreeBSD does not package spirv-headers
+    if (PLATFORM_FREEBSD)
+        AddJsonPackage(spirv-headers)
+    else()
+        find_package(SPIRV-Headers 1.3.274 REQUIRED)
+    endif()
+
     find_package(SPIRV-Tools MODULE REQUIRED)
-    find_package(SPIRV-Headers 1.3.274 REQUIRED)
 
     if (YUZU_TESTS)
         find_package(Catch2 3.0.1 REQUIRED)

CMakeModules/CPMUtil.cmake

@@ -1,17 +1,6 @@
-# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-# SPDX-License-Identifier: GPL-3.0-or-later
-
 # SPDX-FileCopyrightText: Copyright 2025 crueter
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-# Created-By: crueter
-# Docs will come at a later date, mostly this is to just reduce boilerplate
-# and some cmake magic to allow for runtime viewing of dependency versions
-
-# Future crueter: Wow this was a lie and a half, at this point I might as well make my own CPN
-# haha just kidding... unless?
-
-# TODO(crueter): Remember to get more than 6 hours of sleep whenever making giant cmake changes
 if (MSVC OR ANDROID)
     set(BUNDLED_DEFAULT ON)
 else()
@@ -27,6 +16,7 @@ option(CPMUTIL_FORCE_SYSTEM
 cmake_minimum_required(VERSION 3.22)
 include(CPM)
 
+# cpmfile parsing
 set(CPMUTIL_JSON_FILE "${CMAKE_CURRENT_SOURCE_DIR}/cpmfile.json")
 
 if (EXISTS ${CPMUTIL_JSON_FILE})
@@ -35,12 +25,11 @@ else()
     message(WARNING "[CPMUtil] cpmfile ${CPMUTIL_JSON_FILE} does not exist, AddJsonPackage will be a no-op")
 endif()
 
-# utility
+# Utility stuff
 function(cpm_utils_message level name message)
     message(${level} "[CPMUtil] ${name}: ${message}")
 endfunction()
 
-# utility
 function(array_to_list array length out)
     math(EXPR range "${length} - 1")
 
@@ -53,7 +42,6 @@ function(array_to_list array length out)
     set("${out}" "${NEW_LIST}" PARENT_SCOPE)
 endfunction()
 
-# utility
 function(get_json_element object out member default)
     string(JSON out_type ERROR_VARIABLE err TYPE "${object}" ${member})
 
@@ -73,14 +61,13 @@ function(get_json_element object out member default)
     set("${out}" "${outvar}" PARENT_SCOPE)
 endfunction()
 
-# Kinda cancerous but whatever
+# The preferred usage
 function(AddJsonPackage)
     set(oneValueArgs
         NAME
 
         # these are overrides that can be generated at runtime, so can be defined separately from the json
         DOWNLOAD_ONLY
-        SYSTEM_PACKAGE
         BUNDLED_PACKAGE
     )
 
@@ -90,6 +77,7 @@ function(AddJsonPackage)
                           "${ARGN}")
 
     list(LENGTH ARGN argnLength)
+
     # single name argument
     if(argnLength EQUAL 1)
         set(JSON_NAME "${ARGV0}")
@@ -199,7 +187,6 @@ function(AddJsonPackage)
     endif()
 
     set(options ${options} ${JSON_OPTIONS})
-
     # end options
 
     # system/bundled
@@ -241,7 +228,7 @@ endfunction()
 function(AddPackage)
     cpm_set_policies()
 
-    # TODO(crueter): docs, git clone
+    # TODO(crueter): git clone?
 
     #[[
         URL configurations, descending order of precedence:

externals/libusb/CMakeLists.txt

@@ -1,15 +1,19 @@
+# SPDX-FileCopyrightText: 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # SPDX-FileCopyrightText: 2020 yuzu Emulator Project
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 include(CPMUtil)
 
-if (PLATFORM_SUN OR PLATFORM_OPENBSD OR PLATFORM_FREEBSD)
+# we love our libraries don't we folks
+if (PLATFORM_SUN)
     set(libusb_bundled ON)
 else()
     set(libusb_bundled OFF)
 endif()
 
-# TODO(crueter): Fix on *BSD/Solaris
+# TODO(crueter): Fix on Solaris
 AddJsonPackage(
     NAME libusb
     BUNDLED_PACKAGE ${libusb_bundled}
@@ -19,6 +23,7 @@ if (NOT libusb_ADDED)
     return()
 endif()
 
+# TODO: *BSD fails to compile--may need different configs/symbols
 if (MINGW OR PLATFORM_LINUX OR APPLE)
     set(LIBUSB_FOUND ON CACHE BOOL "libusb is present" FORCE)
     set(LIBUSB_VERSION "1.0.24" CACHE STRING "libusb version string" FORCE)