[github-actions] Windows: Also build cython extension
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cde2dc7..ecd5219 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -64,9 +64,10 @@
           libtool
           autoconf
           automake-wrapper
+          cython
     - uses: actions/checkout@v2
     - name: autogen
-      run: ./autogen.sh CC=gcc CXX=g++ --without-cython
+      run: ./autogen.sh CC=gcc CXX=g++
     - name: make
       run: make
     - name: make check