This is the second round of the SD-6 support series. I believe I have answered everyones concerns.
Built and tested on x86_64-linux. OK?
2014-06-09 Ed Smith-Rowland <3dw...@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * c-cppbuiltin.c (c_cpp_builtins()): Define language feature macros and the __has_header macro.
Index: c-cppbuiltin.c =================================================================== --- c-cppbuiltin.c (revision 211354) +++ c-cppbuiltin.c (working copy) @@ -794,6 +794,12 @@ /* For stddef.h. They require macros defined in c-common.c. */ c_stddef_cpp_builtins (); + /* Set feature test macros for all C/C++ (not for just C++11 etc.) + the builtins __has_include__ and __has_include_next__ are defined + int libcpp. */ + cpp_define (pfile, "__has_include(STR)=__has_include__(STR)"); + cpp_define (pfile, "__has_include_next(STR)=__has_include_next__(STR)"); + if (c_dialect_cxx ()) { if (flag_weak && SUPPORTS_ONE_ONLY) @@ -805,7 +811,40 @@ if (flag_rtti) cpp_define (pfile, "__GXX_RTTI"); if (cxx_dialect >= cxx11) - cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__"); + { + cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__"); + + /* Set feature test macros for C++11 */ + cpp_define (pfile, "__cpp_unicode_characters=200704"); + cpp_define (pfile, "__cpp_raw_strings=200710"); + cpp_define (pfile, "__cpp_unicode_literals=200710"); + cpp_define (pfile, "__cpp_user_defined_literals=200809"); + cpp_define (pfile, "__cpp_lambdas=200907"); + cpp_define (pfile, "__cpp_constexpr=200704"); + cpp_define (pfile, "__cpp_static_assert=200410"); + cpp_define (pfile, "__cpp_decltype=200707"); + cpp_define (pfile, "__cpp_attributes=200809"); + cpp_define (pfile, "__cpp_rvalue_reference=200610"); + cpp_define (pfile, "__cpp_variadic_templates=200704"); + cpp_define (pfile, "__cpp_alias_templates=200704"); + } + if (cxx_dialect > cxx11) + { + /* Set feature test macros for C++14 */ + cpp_define (pfile, "__cpp_binary_literals=201304"); + cpp_define (pfile, "__cpp_init_captures=201304"); + cpp_define (pfile, "__cpp_generic_lambdas=201304"); + //cpp_undef (pfile, "__cpp_constexpr"); + //cpp_define (pfile, "__cpp_constexpr=201304"); + cpp_define (pfile, "__cpp_decltype_auto=201304"); + cpp_define (pfile, "__cpp_return_type_deduction=201304"); + cpp_define (pfile, "__cpp_runtime_arrays=201304"); + //cpp_define (pfile, "__cpp_aggregate_nsdmi=201304"); + //cpp_define (pfile, "__cpp_variable_templates=201304"); + cpp_define (pfile, "__cpp_digit_separators=201309"); + cpp_define (pfile, "__cpp_attribute_deprecated=201309"); + //cpp_define (pfile, "__cpp_sized_deallocation=201309"); + } } /* Note that we define this for C as well, so that we know if __attribute__((cleanup)) will interface with EH. */