Try to explicitly export CPATH and Co.

Author: giordano

.github/workflows/ci.yml

@@ -61,6 +61,16 @@ jobs:
 
       - name: "Debug"
         run: |
+          if [[ ! -v POPLAR_SDK_ENABLED ]]; then
+              source /opt/poplar/enable.sh
+
+              export "PATH=${PATH}" >> "${GITHUB_ENV}"
+              export "CPATH=${CPATH}" >> "${GITHUB_ENV}"
+              export "LIBRARY_PATH=${LIBRARY_PATH}" >> "${GITHUB_ENV}"
+              export "LD_LIBRARY_PATH=${LD_LIBRARY_PATH}" >> "${GITHUB_ENV}"
+              export "POPLAR_SDK_ENABLED=${POPLAR_SDK_ENABLED}" >> "${GITHUB_ENV}"
+          fi
+
           env
 
       - uses: julia-actions/julia-buildpkg@v1