feat: build MLC for both iOS sim & device

Author: artus9033

packages/mlc/react-native-ai-mlc.podspec

@@ -47,17 +47,28 @@ Pod::Spec.new do |s|
 
   # User target configuration to ensure static libraries are force loaded
   s.user_target_xcconfig = {
-    'OTHER_LDFLAGS' => [
+    'OTHER_LDFLAGS[sdk=iphoneos*]' => [
       '$(inherited)',
       '-ObjC',
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libmodel_iphone.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libmlc_llm.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtvm_runtime.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtvm_ffi_static.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libsentencepiece.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtokenizers_cpp.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtokenizers_c.a\""
-    ].join(' ')
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libmodel_iphone.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libmlc_llm.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtvm_runtime.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtvm_ffi_static.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libsentencepiece.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtokenizers_cpp.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtokenizers_c.a\""
+    ].join(' '),
+    'OTHER_LDFLAGS[sdk=iphonesimulator*]' => [
+      '$(inherited)',
+      '-ObjC',
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libmodel_iphone.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libmlc_llm.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtvm_runtime.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtvm_ffi_static.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libsentencepiece.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtokenizers_cpp.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtokenizers_c.a\""
+    ].join(' '),
   }
 
   # Framework dependencies

packages/mlc/scripts/build-runtime.sh

@@ -278,10 +278,35 @@ fi
 mkdir -p "$OUTPUT_DIR"
 
 # Run MLC package command
-echo "Building runtime..."
-python3 -m mlc_llm package \
-  --package-config "$CONFIG_FILE" \
-  --output "$OUTPUT_DIR"
+if [ "$PLATFORM" = "ios" ]; then
+  for is_simulator in false true; do
+    echo "Preparing libs (is_simulator=$is_simulator)..."
+    PREPARE_LIBS_PATH="$MLC_LLM_SOURCE_DIR/ios/prepare_libs.sh"
+    if [ -f "$PREPARE_LIBS_PATH" ]; then
+      sed -i '' "s/^is_simulator=.*/is_simulator=\"$is_simulator\"/" "$PREPARE_LIBS_PATH"
+    fi
+
+    echo "Building runtime (is_simulator=$is_simulator)..."
+    python3 -m mlc_llm package \
+      --package-config "$CONFIG_FILE" \
+      --output "$OUTPUT_DIR"
+
+    if [ -d "$OUTPUT_DIR/lib" ]; then
+      if [ "$is_simulator" = "true" ]; then
+        lib_suffix="iphonesim"
+      else
+        lib_suffix="iphone"
+      fi
+      rm -rf "$OUTPUT_DIR/lib_$lib_suffix"
+      mv "$OUTPUT_DIR/lib" "$OUTPUT_DIR/lib_$lib_suffix"
+    fi
+  done
+else
+  echo "Building runtime..."
+  python3 -m mlc_llm package \
+    --package-config "$CONFIG_FILE" \
+    --output "$OUTPUT_DIR"
+fi
 
 # Copy necessary headers for iOS
 if [ "$PLATFORM" = "ios" ]; then