[libcxx] updates the feature-test macro generator

D97015 didn't correctly update `generate_feature_test_macro_components.py`.

Reviewed By: ldionne, Quuxplusone, #libc, Mordante

Differential Revision: https://reviews.llvm.org/D97904

Author: cjdb

libcxx/include/version

@@ -337,7 +337,7 @@ __cpp_lib_void_t                                        201411L <type_traits>
 #   define __cpp_lib_latch                              201907L
 # endif
 # define __cpp_lib_list_remove_return_type              201806L
-# ifndef _LIBCPP_HAS_NO_CONCEPTS
+# if !defined(_LIBCPP_HAS_NO_CONCEPTS)
 #   define __cpp_lib_math_constants                     201907L
 # endif
 // # define __cpp_lib_polymorphic_allocator                201902L

libcxx/test/std/language.support/support.limits/support.limits.general/numbers.version.pass.cpp

@@ -42,7 +42,7 @@
 
 #elif TEST_STD_VER == 20
 
-# ifndef _LIBCPP_HAS_NO_CONCEPTS
+# if defined(__cpp_concepts) && __cpp_concepts >= 201907L
 #   ifndef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should be defined in c++20"
 #   endif
@@ -53,11 +53,11 @@
 #   ifdef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should not be defined when defined(__cpp_concepts) && __cpp_concepts >= 201907L is not defined!"
 #   endif
-# endif // _LIBCPP_HAS_NO_CONCEPTS
+# endif
 
 #elif TEST_STD_VER > 20
 
-# ifndef _LIBCPP_HAS_NO_CONCEPTS
+# if defined(__cpp_concepts) && __cpp_concepts >= 201907L
 #   ifndef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should be defined in c++2b"
 #   endif
@@ -68,7 +68,7 @@
 #   ifdef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should not be defined when defined(__cpp_concepts) && __cpp_concepts >= 201907L is not defined!"
 #   endif
-# endif // _LIBCPP_HAS_NO_CONCEPTS
+# endif
 
 #endif // TEST_STD_VER > 20
 

libcxx/test/std/language.support/support.limits/support.limits.general/version.version.pass.cpp

@@ -2890,7 +2890,7 @@
 #   error "__cpp_lib_map_try_emplace should have the value 201411L in c++20"
 # endif
 
-# ifndef _LIBCPP_HAS_NO_CONCEPTS
+# if defined(__cpp_concepts) && __cpp_concepts >= 201907L
 #   ifndef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should be defined in c++20"
 #   endif
@@ -2901,7 +2901,7 @@
 #   ifdef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should not be defined when defined(__cpp_concepts) && __cpp_concepts >= 201907L is not defined!"
 #   endif
-# endif // _LIBCPP_HAS_NO_CONCEPTS
+# endif
 
 # if !defined(_LIBCPP_VERSION)
 #   ifndef __cpp_lib_math_special_functions
@@ -4104,7 +4104,7 @@
 #   error "__cpp_lib_map_try_emplace should have the value 201411L in c++2b"
 # endif
 
-# if !_LIBCPP_HAS_NO_CONCEPTS
+# if defined(__cpp_concepts) && __cpp_concepts >= 201907L
 #   ifndef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should be defined in c++2b"
 #   endif
@@ -4115,7 +4115,7 @@
 #   ifdef __cpp_lib_math_constants
 #     error "__cpp_lib_math_constants should not be defined when defined(__cpp_concepts) && __cpp_concepts >= 201907L is not defined!"
 #   endif
-# endif // !_LIBCPP_HAS_NO_CONCEPTS
+# endif
 
 # if !defined(_LIBCPP_VERSION)
 #   ifndef __cpp_lib_math_special_functions

libcxx/utils/generate_feature_test_macro_components.py

@@ -422,7 +422,7 @@ def add_version_header(tc):
     "values": { "c++20": 201907 },
     "headers": ["numbers"],
     "depends": "defined(__cpp_concepts) && __cpp_concepts >= 201907L",
-    "internal_depends": "defined(__cpp_concepts) && __cpp_concepts >= 201907L",
+    "internal_depends": "!defined(_LIBCPP_HAS_NO_CONCEPTS)",
   }, {
     "name": "__cpp_lib_math_special_functions",
     "values": { "c++17": 201603 },