dpkg-query: no packages found matching libgtk2.0-dev
debconf: delaying package configuration, since apt-utils is not installed
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


In file included from /home/conan/w/cci_PR-4408/4/c9104280-c81d-4dea-9d1f-8fdf250ead4f/recipes/cimg/all/test_package/test_package.cpp:47:0:
/home/conan/w/cci_PR-4408/.conan/data/cimg/2.9.2/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CImg.h:568:32: warning: unknown option after ‘#pragma GCC diagnostic’ kind [-Wpragmas]
 #pragma GCC diagnostic ignored "-Wdeprecated-copy"
                                ^~~~~~~~~~~~~~~~~~~
cimg/2.9.2: WARN: This conanfile has no build step