Try workaround for libc++

Author: jeroen

.github/workflows/RHUB-check.yml

@@ -0,0 +1,32 @@
+on:
+  push:
+  pull_request:
+
+name: RHUB-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ubuntu-latest
+    name: r-hub2/${{ matrix.container }}
+    container: ghcr.io/r-hub/containers/${{ matrix.container }}:latest
+    strategy:
+      fail-fast: false
+      matrix:
+        container: [ 'clang18', 'clang20', 'ubuntu-clang' ]
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+      DOWNLOAD_STATIC_LIBV8: true
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2

cleanup

@@ -1,2 +1,2 @@
 #!/bin/sh
-rm -f src/Makevars configure.log autobrew
+rm -f src/Makevars configure.log autobrew get-im*.sh

configure

@@ -26,6 +26,11 @@ if [ -z "$PKGCONFIG_LIBS" ] && [ `command -v GraphicsMagick++-config` ]; then
   echo "Warning: found GraphicsMagick++ instead of ImageMagick++. GraphicsMagick is not supported."
 fi
 
+# CRAN Linux LIBC++ is incompatible with Fedora-42 ImageMagick-7
+if [ "$(uname -sm)" = "Linux x86_64" ] && echo "$CXX" | grep -Fq "clang"; then
+curl -sOL "https://github.com/ropensci/magick/releases/download/ImageMagick-6.9.13-25/get-im6-linux.sh" && . ./get-im6-linux.sh || true
+fi
+
 # Note that cflags may be empty in case of success
 if [ "$INCLUDE_DIR" ] || [ "$LIB_DIR" ]; then
   echo "Found INCLUDE_DIR and/or LIB_DIR!"