Warning: doxygen not found, the 'doc' target will not be included
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/json_pointer.c:230:7: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
        rc = vasprintf(&path_copy, path_fmt, args);
             ^
/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/json_pointer.c:317:7: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
        rc = vasprintf(&path_copy, path_fmt, args);
             ^
2 warnings generated.
/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/json_pointer.c:230:7: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
        rc = vasprintf(&path_copy, path_fmt, args);
             ^
/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/json_pointer.c:317:7: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
        rc = vasprintf(&path_copy, path_fmt, args);
             ^
2 warnings generated.
/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/printbuf.c:149:15: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
                if ((size = vasprintf(&t, msg, ap)) < 0)
                            ^
1 warning generated.
/home/conan/w/cci_PR-3748/.conan/data/json-c/0.15/_/_/build/a064fac9bef9f843f8878f385a5d4e6281f9a310/source_subfolder/printbuf.c:149:15: warning: implicit declaration of function 'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
                if ((size = vasprintf(&t, msg, ap)) < 0)
                            ^
1 warning generated.
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


json-c/0.15: WARN: Library 'json-c' was either already found in a previous 'conanfile.cpp_info.libdirs' folder or appears several times with a different file extension