build: linux attempt arm64 without mold

.github/workflows/build.yml

@@ -88,9 +88,6 @@ jobs:
           sudo apt-get update
           sudo apt-get -y install crossbuild-essential-arm64
 
-      - name: Install Mold
-        uses: rui314/setup-mold@staging
-
       - name: Install Premake5
         uses: abel0b/setup-premake@v2.2
         with:
@@ -102,20 +99,13 @@ jobs:
       - name: Set up problem matching
         uses: ammaraskar/gcc-problem-matcher@master
 
-      - name: Set up CC environment variable
-        if: matrix.arch == 'arm64'
-        run: |
-          echo "CC=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
-
-      - name: Set up CXX environment variable
-        if: matrix.arch == 'arm64'
-        run: |
-          echo "CXX=aarch64-linux-gnu-g++" >> $GITHUB_ENV
-
       - name: Build ${{matrix.configuration}} ${{matrix.arch}} binaries
         run: |
           pushd build
           make config=${{matrix.config}}_${{matrix.arch}} -j$(nproc)
+        env:
+          CC: clang
+          CXX: clang++
 
       - name: Upload ${{matrix.configuration}} ${{matrix.arch}} binaries
         uses: actions/upload-artifact@v3.1.2

premake5.lua

@@ -74,17 +74,24 @@ editandcontinue "Off"
 warnings "Extra"
 characterset "ASCII"
 
-if os.istarget("linux") or os.istarget("darwin") then
+filter { "system:linux", "system:macosx" }
 	buildoptions "-pthread"
 	linkoptions "-pthread"
+filter {}
+
+if os.istarget("linux") then
+	filter { "platforms:arm64" }
+		buildoptions "--target=arm64-linux-gnu"
+		linkoptions "--target=arm64-linux-gnu"
+	filter {}
+
+	linkoptions "-fuse-ld=lld"
 end
 
-if os.istarget("darwin") then
-	filter "platforms:arm64"
-		buildoptions "-arch arm64"
-		linkoptions "-arch arm64"
-	filter {}
-end
+filter { "system:macosx", "platforms:arm64" }
+	buildoptions "-arch arm64"
+	linkoptions "-arch arm64"
+filter {}
 
 if os.getenv("CI") then
 	defines "CI"