source_subfolder/configure: line 3378: cd: /home/conan/w/cci_PR-3857/.conan/data/isl/0.23/_/_/package/fd6ddc1e7f1be609b4b4b9c21d67ab0f29a392f8: No such file or directory
source_subfolder/configure: line 5363: test: =: unary operator expected
/sbin/ldconfig.real: /home/conan/w/cci_PR-3857/.conan/data/isl/0.23/_/_/package/fd6ddc1e7f1be609b4b4b9c21d67ab0f29a392f8/lib/libisl.so.23.0.0-gdb.py is not an ELF file - it has the wrong magic bytes at the start.

CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY