Pin scipy version for (conda + Linux) users

.github/workflows/ci_conda.yml

@@ -0,0 +1,44 @@
+name: CI-Conda
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        version:
+          - "1.6" # LTS
+          - "1.8" # Current Stable Release
+          - "nightly"
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - uses: julia-actions/julia-buildpkg@v1
+        env:
+          PYTHON: ""
+      - uses: julia-actions/julia-runtest@v1
+        env:
+          PYTHON: ""

deps/build.jl

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+import PyCall
+
+if Sys.islinux() && PyCall.conda
+    #=
+    If one uses Python managed by Conda.jl, pin scipy version to avoid an error
+    "version `GLIBCXX_3.4.30' not found". See the following issues:
+    - https://github.com/JuliaPy/PyCall.jl/issues/990#issuecomment-1224878410
+    - https://github.com/AtsushiSakai/SciPy.jl/issues/48
+    - https://github.com/AtsushiSakai/SciPy.jl/issues/68
+    =#
+    PyCall.Conda.add("gcc=12.1.0"; channel="conda-forge")
+    # Pin this version, to avoid clashes with libgcc.34
+    PyCall.Conda.add("scipy=1.8.0")
+end