From bf4793a8671e0c887e377b8076324c5d0ee99f88 Mon Sep 17 00:00:00 2001
From: PBeGood4 <pedrocbeirao@gmail.com>
Date: Thu, 3 Mar 2022 19:16:03 +0000
Subject: [PATCH] Allow multiple archs

---
 prboom2/CMakeLists.txt         | 12 +++++++-----
 prboom2/cmake/TargetArch.cmake |  6 ++++++
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/prboom2/CMakeLists.txt b/prboom2/CMakeLists.txt
index 25bc840bd..90a7b3051 100644
--- a/prboom2/CMakeLists.txt
+++ b/prboom2/CMakeLists.txt
@@ -24,11 +24,13 @@ include(GNUInstallDirs)
 
 # Automated dependencies discovery, mostly needed for MSVC
 target_architecture(TARGET_ARCH)
-if(${TARGET_ARCH} MATCHES "i386")
-    set(DEPENDENCY_SUFFIX x86)
-elseif(${TARGET_ARCH} MATCHES "x86_64")
-    set(DEPENDENCY_SUFFIX x64)
-endif()
+foreach(target ${TARGET_ARCH})
+    if(${target} MATCHES "i386")
+        set(DEPENDENCY_SUFFIX x86)
+    elseif(${target} MATCHES "x86_64")
+        set(DEPENDENCY_SUFFIX x64)
+    endif()
+endforeach()
 set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../dependencies_${DEPENDENCY_SUFFIX}")
 
 set(PACKAGE_NAME "${PROJECT_NAME}")
diff --git a/prboom2/cmake/TargetArch.cmake b/prboom2/cmake/TargetArch.cmake
index 198aa9c05..2cfef741b 100644
--- a/prboom2/cmake/TargetArch.cmake
+++ b/prboom2/cmake/TargetArch.cmake
@@ -96,6 +96,8 @@ function(target_architecture output_var)
                 set(osx_arch_x86_64 TRUE)
             elseif("${osx_arch}" STREQUAL "ppc64" AND ppc_support)
                 set(osx_arch_ppc64 TRUE)
+            elseif("${osx_arch}" STREQUAL "arm64")
+                set(osx_arch_arm64 TRUE)
             else()
                 message(FATAL_ERROR "Invalid OS X arch name: ${osx_arch}")
             endif()
@@ -117,6 +119,10 @@ function(target_architecture output_var)
         if(osx_arch_ppc64)
             list(APPEND ARCH ppc64)
         endif()
+
+        if(osx_arch_arm64)
+            list(APPEND ARCH arm64)
+        endif()
     else()
         file(WRITE "${CMAKE_BINARY_DIR}/arch.c" "${archdetect_c_code}")