Update Makefile and GitHub Actions workflow for Windows compatibility

Author: Gioee

.github/workflows/main.yml

@@ -52,6 +52,14 @@ jobs:
         with:
           submodules: true
 
+      - uses: msys2/[email protected]
+        if: matrix.os == 'windows-latest'
+        with:
+          msystem: mingw64
+          install: >-
+            mingw-w64-x86_64-cc
+            make
+
       - name: build sqlite-ai
         run: make extension ${{ matrix.make && matrix.make || ''}}
 

Makefile

@@ -140,17 +140,14 @@ test: $(TARGET)
 	$(SQLITE3) ":memory:" -cmd ".bail on" ".load ./dist/ai" "SELECT ai_version();"
 
 # Build submodules
-ifneq ($(PLATFORM),windows)
-BUILD_OPTIONS = -- -j$(CPUS)
-endif
 build/llama.cpp.stamp:
 	cmake -B $(BUILD_LLAMA) -DBUILD_SHARED_LIBS=OFF $(LLAMA_OPTIONS) $(LLAMA_DIR)
-	cmake --build $(BUILD_LLAMA) --config Release $(BUILD_OPTIONS)
+	cmake --build $(BUILD_LLAMA) --config Release -- -j$(CPUS)
 	touch $@
 
 build/whisper.cpp.stamp:
 	cmake -B $(BUILD_WHISPER) -DBUILD_SHARED_LIBS=OFF $(WHISPER_OPTIONS) $(WHISPER_DIR)
-	cmake --build $(BUILD_WHISPER) --config Release $(BUILD_OPTIONS)
+	cmake --build $(BUILD_WHISPER) --config Release -- -j$(CPUS)
 	touch $@
 
 $(LLAMA_LIBS): build/llama.cpp.stamp