fix path quoting in build scripts for directories with spaces

build.sh

@@ -25,7 +25,7 @@ if [ ! -f "$RUST_LIB/libswiftly_core.a" ]; then
     exit 1
 fi
 
-RUST_FLAGS="-import-objc-header $ROOT/core/include/swiftly.h -L $RUST_LIB -lswiftly_core"
+RUST_FLAGS=(-import-objc-header "$ROOT/core/include/swiftly.h" -L "$RUST_LIB" -lswiftly_core)
 
 # --- App icon from pre-rendered PNGs ---
 ICONS="$ROOT/assets/icon_sources"
@@ -59,7 +59,7 @@ echo "Compiling Swift (release)..."
 swiftc \
     -target arm64-apple-macosx14.0 \
     -sdk "$SDK" \
-    $RUST_FLAGS \
+    "${RUST_FLAGS[@]}" \
     -framework Cocoa \
     -framework SwiftUI \
     -O \

debug.sh

@@ -15,7 +15,7 @@ RUST_LIB="$ROOT/core/target/debug"
 echo "Building Rust core (debug)..."
 cd "$ROOT/core" && cargo build
 cd "$ROOT"
-RUST_FLAGS="-import-objc-header $ROOT/core/include/swiftly.h -L $RUST_LIB -lswiftly_core"
+RUST_FLAGS=(-import-objc-header "$ROOT/core/include/swiftly.h" -L "$RUST_LIB" -lswiftly_core)
 
 # --- Bundle structure ---
 mkdir -p "$MACOS" "$RESOURCES"
@@ -26,7 +26,7 @@ echo "Compiling Swift (debug)..."
 swiftc \
     -target arm64-apple-macosx14.0 \
     -sdk "$SDK" \
-    $RUST_FLAGS \
+    "${RUST_FLAGS[@]}" \
     -framework Cocoa \
     -framework SwiftUI \
     -Onone -g \