bruno added a comment. Hi Michael, thanks for improving this.
================ Comment at: clang/include/clang/Driver/Options.td:1448 Flags<[CC1Option]>, Alias<fmodule_name_EQ>; +def fsystem_module : Flag<["-"], "fsystem-module">, Flags<[CC1Option]>, + HelpText<"Build this module as a system module. Only used with -emit-module">; ---------------- I wonder if `-isystem-module` wouldn't be better since it's kinda similar with `-isystem` for headers, but for modules. ================ Comment at: clang/lib/Frontend/CompilerInvocation.cpp:1912 + Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" + << "-emit-module"; ---------------- What happens when we use this with implicit modules? It will just be ignored? If so, users might think that using `-fsystem-module` might help them get rid of some warnings/errors, when in fact it won't. ================ Comment at: clang/test/Modules/fsystem-module.m:1 +// RUN: rm -rf %t +// RUN: rm -rf %t-saved ---------------- Is this really needed given you are only using `%t-saved` below? Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D75395/new/ https://reviews.llvm.org/D75395 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits