Fix macOS build process and make shell scripts cross-platform

- Add vulkan-loader, vulkan-headers, shaderc to macOS CI brew install
- Add vulkan-loader and shaderc to macOS PKG_CONFIG_PATH
- Replace Linux-only `nproc` with portable fallback in build.sh,
  rebuild.sh, extract_assets.sh, and tools/backup_assets.sh
- Replace `ldconfig` StormLib check with portable detection
  (ldconfig, pkg-config, brew lib) in extract_assets.sh
- Update BUILD_INSTRUCTIONS.md macOS section with vulkan/shaderc
  packages and MoltenVK explanation
- Add macOS prerequisites to README.md

.github/workflows/build.yml

@@ -89,14 +89,14 @@ jobs:
       - name: Install dependencies
         run: |
           brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg unicorn \
-            stormlib dylibbundler || true
+            stormlib vulkan-loader vulkan-headers shaderc dylibbundler || true
           # dylibbundler may not be in all brew mirrors; install separately to not block others
           brew install dylibbundler 2>/dev/null || true
 
       - name: Configure
         run: |
           BREW=$(brew --prefix)
-          export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig"
+          export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig:$(brew --prefix vulkan-loader)/lib/pkgconfig:$(brew --prefix shaderc)/lib/pkgconfig"
           cmake -S . -B build \
             -DCMAKE_BUILD_TYPE=Release \
             -DCMAKE_PREFIX_PATH="$BREW" \

BUILD_INSTRUCTIONS.md

@@ -65,8 +65,18 @@ Supports `classic`, `tbc`, `wotlk` targets (auto-detected if omitted).
 
 ### Install Dependencies
 
+Vulkan on macOS is provided via MoltenVK (a Vulkan-to-Metal translation layer),
+which is included in the `vulkan-loader` Homebrew package.
+
 ```bash
-brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg unicorn stormlib
+brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg unicorn \
+  stormlib vulkan-loader vulkan-headers shaderc
+```
+
+Optional (for creating redistributable `.app` bundles):
+
+```bash
+brew install dylibbundler
 ```
 
 ### Clone & Build
@@ -76,7 +86,7 @@ git clone --recurse-submodules https://github.com/Kelsidavis/WoWee.git
 cd WoWee
 
 BREW=$(brew --prefix)
-export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig"
+export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig:$(brew --prefix vulkan-loader)/lib/pkgconfig:$(brew --prefix shaderc)/lib/pkgconfig"
 cmake -S . -B build -DCMAKE_BUILD_TYPE=Release \
   -DCMAKE_PREFIX_PATH="$BREW" \
   -DOPENSSL_ROOT_DIR="$(brew --prefix openssl@3)"

README.md

@@ -84,6 +84,12 @@ sudo pacman -S sdl2 glm openssl \
                ffmpeg zlib cmake base-devel libx11 \
                unicorn                    # optional: Warden module execution
                # StormLib: install from AUR for asset_extract tool
+
+# macOS (Homebrew)
+brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg \
+             vulkan-loader vulkan-headers shaderc \
+             unicorn \                    # optional: Warden module execution
+             stormlib                     # optional: asset_extract tool
 ```
 
 ### Container build

build.sh

@@ -16,8 +16,9 @@ echo "Configuring with CMake..."
 cmake .. -DCMAKE_BUILD_TYPE=Release
 
 # Build with all cores
-echo "Building with $(nproc) cores..."
+NPROC=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu 2>/dev/null || echo 4)
-cmake --build . --parallel $(nproc)
+echo "Building with $NPROC cores..."
+cmake --build . --parallel "$NPROC"
 
 # Ensure Data symlink exists in bin directory
 cd bin

extract_assets.sh

@@ -63,10 +63,19 @@ fi
 # --- Build asset_extract if needed ---
 if [ ! -f "$BINARY" ]; then
     # --- Check for StormLib (only required to build) ---
-    if ! ldconfig -p 2>/dev/null | grep -qi stormlib; then
+    STORMLIB_FOUND=false
+    if ldconfig -p 2>/dev/null | grep -qi stormlib; then
+        STORMLIB_FOUND=true
+    elif pkg-config --exists stormlib 2>/dev/null; then
+        STORMLIB_FOUND=true
+    elif [ -f "$(brew --prefix 2>/dev/null)/lib/libstorm.dylib" ] 2>/dev/null; then
+        STORMLIB_FOUND=true
+    fi
+    if [ "$STORMLIB_FOUND" = false ]; then
         echo "Error: StormLib not found."
-        echo "Install it with: sudo apt install libstormlib-dev"
+        echo "  Ubuntu/Debian: sudo apt install libstormlib-dev"
-        echo "  or build from source: https://github.com/ladislav-zezula/StormLib"
+        echo "  macOS:         brew install stormlib"
+        echo "  From source:   https://github.com/ladislav-zezula/StormLib"
         exit 1
     fi
 
@@ -74,7 +83,8 @@ if [ ! -f "$BINARY" ]; then
     if [ ! -d "$BUILD_DIR" ]; then
         cmake -S "$SCRIPT_DIR" -B "$BUILD_DIR" -DCMAKE_BUILD_TYPE=Release
     fi
-    cmake --build "$BUILD_DIR" --target asset_extract -- -j"$(nproc)"
+    NPROC=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu 2>/dev/null || echo 4)
+    cmake --build "$BUILD_DIR" --target asset_extract -- -j"$NPROC"
     echo ""
 fi
 

rebuild.sh

@@ -22,8 +22,9 @@ echo "Configuring with CMake..."
 cmake .. -DCMAKE_BUILD_TYPE=Release
 
 # Build with all cores
-echo "Building with $(nproc) cores..."
+NPROC=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu 2>/dev/null || echo 4)
-cmake --build . --parallel $(nproc)
+echo "Building with $NPROC cores..."
+cmake --build . --parallel "$NPROC"
 
 # Create Data symlink in bin directory
 echo "Creating Data symlink..."

tools/backup_assets.sh

@@ -50,7 +50,8 @@ if command -v zstd &>/dev/null; then
     tar cf - -C "$(dirname "$DATA_DIR")" "$(basename "$DATA_DIR")" | zstd -T0 -3 -o "$ARCHIVE"
 elif command -v pigz &>/dev/null; then
     ARCHIVE="$BACKUP_DIR/wowee_assets_$TIMESTAMP.tar.gz"
-    tar cf - -C "$(dirname "$DATA_DIR")" "$(basename "$DATA_DIR")" | pigz -p "$(nproc)" > "$ARCHIVE"
+    NPROC=$(nproc 2>/dev/null || sysctl -n hw.logicalcpu 2>/dev/null || echo 4)
+    tar cf - -C "$(dirname "$DATA_DIR")" "$(basename "$DATA_DIR")" | pigz -p "$NPROC" > "$ARCHIVE"
 else
     ARCHIVE="$BACKUP_DIR/wowee_assets_$TIMESTAMP.tar.gz"
     tar czf "$ARCHIVE" -C "$(dirname "$DATA_DIR")" "$(basename "$DATA_DIR")"