use premake mac from github release & remove Rosetta thing (#43)

.github/workflows/build.yml

@@ -528,9 +528,17 @@ jobs:
         brew install opus opusfile libvorbis
 #        brew install sqlite libx11 freetype libevent
 
-    - name: Install premake
+    - name: Download premake
+      id: premake
+      uses: mercury233/action-cache-download-file@v1.0.0
+      with:
+        url: https://github.com/premake/premake-core/releases/download/v5.0.0-beta7/premake-5.0.0-beta7-macosx.tar.gz
+        filename: premake5.tar.gz
+
+    - name: Extract premake
       run: |
-        brew install premake
+        tar xf ${{ steps.premake.outputs.filepath }}
+        chmod +x ./premake5
 
     - name: Download libevent
       if: matrix.static-link == true
@@ -662,12 +670,12 @@ jobs:
     - name: Use premake to generate make files (Homebrew packages)
       if: matrix.static-link != true
       run: |
-        DYLD_LIBRARY_PATH=$(brew --prefix)/lib premake5 gmake
+        DYLD_LIBRARY_PATH=$(brew --prefix)/lib ./premake5 gmake
 
     - name: Use premake to generate make files (static link)
       if: matrix.static-link == true
       run: |
-        premake5 gmake ${{ matrix.cross-build-intel == true && '--mac-intel' || '' }} ${{ matrix.cross-build-arm == true && '--mac-arm' || '' }} \
+        ./premake5 gmake ${{ matrix.cross-build-intel == true && '--mac-intel' || '' }} ${{ matrix.cross-build-arm == true && '--mac-arm' || '' }} \
           --build-event \
           --build-freetype \
           --build-sqlite \
@@ -684,4 +692,4 @@ jobs:
       with:
         name: YGOPro-${{ matrix.name }}
         path: |
-          bin/release/YGOPro.app
+          bin/release/YGOPro

premake5.lua

@@ -244,18 +244,9 @@ if os.istarget("macosx") then
     if GetParam("mac-intel") then
         MAC_INTEL = true
     end
-    
-    if MAC_ARM then
+    if MAC_ARM or (not MAC_INTEL and os.hostarch() == "ARM64") then
+        -- building on ARM CPU will target ARM automatically
         TARGET_MAC_ARM = true
-    elseif not MAC_INTEL then
-        -- automatic target arm64, need extra detect
-        -- currently, os.hostarch cannot detect architectures that have been automatically translated by macOS
-        local uname = os.outputof("uname -m")
-        local proctranslated = os.outputof("sysctl sysctl.proc_translated")
-        if uname:find("arm") or proctranslated then
-            print("Detected Apple Silicon Mac")
-            TARGET_MAC_ARM = true
-        end
     end
 end
 
@@ -320,11 +311,7 @@ workspace "YGOPro"
         targetdir "bin/debug/x64"
 
     filter { "configurations:Release", "action:vs*" }
-        if linktimeoptimization then -- available since premake 5.0-beta4
-            linktimeoptimization "On"
-        else
-            flags { "LinkTimeOptimization" }
-        end
+        linktimeoptimization "On"
         staticruntime "On"
         disablewarnings { "4244", "4267", "4838", "4996", "6011", "6031", "6054", "6262" }