manojgupta added a comment. Tried locally but I still see the warning with -fno-knr-functions. It also says that the argument is unused.
bin/clang --version clang version 15.0.0 (https://github.com/llvm/llvm-project.git a9d68a5524dea113cace5983697786599cbdce9a <https://reviews.llvm.org/rGa9d68a5524dea113cace5983697786599cbdce9a>) Target: x86_64-unknown-linux-gnu $ cat pr.c void foo(void); void foo() { } $ bin/clang -c pr.c -Wstrict-prototypes -fno-knr-functions clang-14: warning: argument unused during compilation: '-fno-knr-functions' [-Wunused-command-line-argument] pr.c:3:9: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes] void foo() ^ void 1 warning generated. It works if -fno-knr-functions is passed with Xclang . Is it intentional that -fno-knr-functions is only a cc1 option? That makes it very hard for us to enable it. $ bin/clang -c pr.c -Wstrict-prototypes -Xclang -fno-knr-functions (no warnings) Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D122895/new/ https://reviews.llvm.org/D122895 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
