Create Universal binary for macOS

Author: fenhl

Main.py

@@ -235,10 +235,7 @@ def compress_rom(input_file: str, output_file: str, delete_input: bool = False)
         else:
             compressor_path += "Compress"
     elif platform.system() == 'Darwin':
-        if platform.machine() == 'arm64':
-            compressor_path += "Compress_ARM64.out"
-        else:
-            compressor_path += "Compress.out"
+        compressor_path += "Compress.out"
     else:
         logger.info("OS not supported for ROM compression.")
         raise Exception("This operating system does not support ROM compression. You may only output patch files or uncompressed ROMs.")

bin/Compress/Compress.out

@@ -31,18 +31,15 @@ pacman -S mingw-w64-i686-toolchain # only needs to be run once (installs the too
 gcc bin/Compress/src/compressor.c -o bin/Compress/Compress32.exe
 ```
 
-# macOS (ARM64)
+# macOS (Universal)
 
-```zsh
-clang -pthread bin/Compress/src/compressor.c -o bin/Compress/Compress_ARM64.out
-```
-
-# macOS (x86_64)
-
-Can be cross-compiled from ARM64.
+Compile on ARM64 (Apple Silicon).
 
 ```zsh
-clang -arch x86_64 -pthread bin/Compress/src/compressor.c -o bin/Compress/Compress.out
+clang -pthread bin/Compress/src/compressor.c -o bin/Compress/Compress_ARM64.out
+clang -arch x86_64 -pthread bin/Compress/src/compressor.c -o bin/Compress/Compress_x86_64.out
+lipo -create bin/Compress/Compress_ARM64.out bin/Compress/Compress_x86_64.out -output bin/Compress/Compress.out
+rm bin/Compress/Compress_ARM64.out bin/Compress/Compress_x86_64.out
 ```
 
 # Linux (ARM64)