I'm trying to build FreeRADIUS with the fuzzers, but I'm running into some problems. Can anyone please point out what I'm doing wrong? First up I appended "CFLAGS += -fsanitize=fuzzer" to Make.inc.in before running ./configure. Next I had to amend my configure command so that clang is used: ./configure CC=clang Next I ran into linking issues because not all binaries have LibFuzzer targets (as I would expect) so I appended again to Make.inc.in "LDFLAGS += -fsanitize=fuzzer-no-link" (which is probably the wrong direction). At the stage of compiling src/bin/fuzzer.c I get an error: CC src/bin/fuzzer.c src/bin/fuzzer.c:111:25: error: use of undeclared identifier 'dl_module_loader' dl_search_path_prepend(dl_module_loader->dl_loader, lib_dir); What am I missing? Looking at the makefiles it looks like it should build out of the box but I seem to be missing something.