Add pthread-win32

.github/workflows/build_natives.yml

@@ -35,12 +35,10 @@ jobs:
         with:
           distribution: adopt
           java-version: "8"
-      - uses: cygwin/cygwin-install-action@master
       - name: Configure CMake
-        run: |
-          bash cd ${{github.workspace}} && cmake -T ClangCL .
+        run: cmake -T ClangCL .
       - name: Build
-        run: bash cmake --build ${{github.workspace}} --config ${{env.BUILD_TYPE}}
+        run: cmake --build ${{github.workspace}} --config ${{env.BUILD_TYPE}}
       - uses: actions/upload-artifact@v3
         with:
           name: native-windows-amd64

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "src/main/cpp/apriltag"]
 	path = apriltag
 	url = https://github.com/AprilRobotics/apriltag/
+[submodule "pthread-win32"]
+	path = pthread-win32
+	url = https://github.com/GerHobbelt/pthread-win32

CMakeLists.txt

@@ -34,6 +34,12 @@ set(JAVA_AWT_INCLUDE_PATH NotNeeded)
 
 find_package(JNI REQUIRED)
 
+if (WIN32)
+    add_subdirectory(pthread-win32/)
+    target_link_libraries(apriltag pthread)
+    target_include_directories(apriltag PRIVATE pthread-win32/)
+endif()
+
 add_library( # Specifies the name of the library.
              apriltag