diff options
Diffstat (limited to 'libcpp/init.cc')
| -rw-r--r-- | libcpp/init.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libcpp/init.cc b/libcpp/init.cc index e9732af..eb495e2 100644 --- a/libcpp/init.cc +++ b/libcpp/init.cc @@ -246,6 +246,7 @@ cpp_create_reader (enum c_lang lang, cpp_hash_table *table, CPP_OPTION (pfile, dollars_in_ident) = 1; CPP_OPTION (pfile, warn_dollars) = 1; CPP_OPTION (pfile, warn_variadic_macros) = 1; + CPP_OPTION (pfile, suppress_builtin_macro_warnings) = 0; CPP_OPTION (pfile, warn_builtin_macro_redefined) = 1; CPP_OPTION (pfile, cpp_warn_implicit_fallthrough) = 0; CPP_OPTION (pfile, warn_header_guard) = 0; @@ -593,6 +594,8 @@ cpp_init_builtins (cpp_reader *pfile, int hosted) && (! CPP_OPTION (pfile, stdc_0_in_system_headers) || CPP_OPTION (pfile, std))) _cpp_define_builtin (pfile, "__STDC__ 1"); + else if (CPP_OPTION (pfile, cplusplus)) + cpp_warn (pfile, "__STDC__"); if (CPP_OPTION (pfile, cplusplus)) { @@ -618,6 +621,14 @@ cpp_init_builtins (cpp_reader *pfile, int hosted) _cpp_define_builtin (pfile, "__cplusplus 201103L"); else _cpp_define_builtin (pfile, "__cplusplus 199711L"); + cpp_warn (pfile, "__cplusplus"); + if (CPP_OPTION (pfile, lang) >= CLK_GNUCXX11) + { + cpp_warn (pfile, "__STDC_VERSION__"); + cpp_warn (pfile, "__STDC_MB_MIGHT_NEQ_WC__"); + if (CPP_OPTION (pfile, lang) < CLK_GNUCXX23) + cpp_warn (pfile, "__STDCPP_STRICT_POINTER_SAFETY__"); + } } else if (CPP_OPTION (pfile, lang) == CLK_ASM) _cpp_define_builtin (pfile, "__ASSEMBLER__ 1"); |