Windows fix plus debug prints

Author: matthew-brett

.github/workflows/build.ps1

@@ -1,5 +1,5 @@
 echo "::group::Build wheel"
-  pip install "$env:BUILD_DEPENDS"
+  pip install @($env:BUILD_DEPENDS.split())
   pip wheel -w "${env:WHEEL_SDIR}" --no-build-isolation ".\${env:REPO_DIR}"
   ls -l "${env:GITHUB_WORKSPACE}/${env:WHEEL_SDIR}/"
 echo "::endgroup::"

.github/workflows/build.sh

@@ -27,8 +27,8 @@ echo "::endgroup::"
 echo "::group::Build wheel"
   np_dep=$(python ./get_numpy_version.py $MB_PYTHON_VERSION)
   export BUILD_DEPENDS="${BUILD_BASE} ${np_dep}"
-  np_dep=$(python get_numpy_version.py ${MB_PYTHON_VERSION})
-  export BUILD_DEPENDS=$np_dep
+  echo "Build depends: ${BUILD_DEPENDS}"
+  echo "Build base: ${BUILD_BASE}"
   clean_code
   build_wheel
   ls -l "${GITHUB_WORKSPACE}/${WHEEL_SDIR}/"