Fixing SDL dynlib for macos port

Author: kdschlosser

builder/macOS.py

@@ -1,12 +1,12 @@
 import os
 import shutil
+import sys
 from .unix import (
     parse_args as _parse_args,
     build_commands as _build_commands,
     build_manifest as _build_manifest,
     force_clean as _force_clean,
     clean as _clean,
-    build_sdl as _build_sdl,
     submodules as _submodules,
     compile as _compile,
     mpy_cross as _mpy_cross
@@ -44,11 +44,26 @@ def force_clean(clean_mpy_cross):
 
 def build_sdl(addl_commands):
     dst = f'lib/micropython/ports/unix/build-{unix.variant}/SDL'
-
-    if os.path.exists(os.path.join(dst, 'libSDL2-2.0.0.dylib')):
+    if not os.path.exists(dst):
+        os.makedirs(dst)
+    elif os.path.exists(os.path.join(dst, 'libSDL2-2.0.0.dylib')):
         return
 
-    _build_sdl(addl_commands.strip())
+    cwd = os.getcwd()
+    os.chdir(dst)
+    cmd_ = [
+        [
+            f'cmake -DSDL_STATIC=ON -DSDL_SHARED=ON '
+            f'-DCMAKE_BUILD_TYPE=Release {addl_commands} {unix.SCRIPT_PATH}/lib/SDL'
+        ],
+        [f'cmake --build . --config Release --parallel {os.cpu_count()}']
+    ]
+
+    res, _ = unix.spawn(cmd_, cmpl=True)
+    if res != 0:
+        sys.exit(res)
+
+    os.chdir(cwd)
 
 
 unix.build_sdl = build_sdl