glob headers

CMakeLists.txt

@@ -3,6 +3,8 @@
 # Distributed under the Boost Software License, Version 1.0.
 # https://www.boost.org/LICENSE_1_0.txt
 
+if(NOT DEFINED IDF_TARGET)
+
 cmake_minimum_required(VERSION 3.5...3.20)
 
 project(boost_core VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
@@ -25,3 +27,22 @@ if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
   add_subdirectory(test)
 
 endif()
+
+else()
+
+FILE(GLOB_RECURSE headers include/*.h include/*.hpp)
+
+idf_component_register(
+    SRCS
+        ${headers}
+    INCLUDE_DIRS
+        include
+    REQUIRES
+        boost_assert
+        boost_config
+        boost_static_assert
+        boost_throw_exception
+)
+
+endif()
+

include/boost/core/pointer_traits.hpp

@@ -100,19 +100,11 @@ template<class T, class U, class = void>
 struct ptr_rebind
     : ptr_transform<T, U> { };
 
-#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
 template<class T, class U>
 struct ptr_rebind<T, U,
     typename ptr_valid<typename T::template rebind<U> >::type> {
     typedef typename T::template rebind<U> type;
 };
-#else
-template<class T, class U>
-struct ptr_rebind<T, U,
-    typename ptr_valid<typename T::template rebind<U>::other>::type> {
-    typedef typename T::template rebind<U>::other type;
-};
-#endif
 
 #if !defined(BOOST_NO_CXX11_DECLTYPE_N3276)
 template<class T, class E>

test/pointer_traits_rebind_sfinae_test.cpp

@@ -56,7 +56,7 @@ struct P3 {
     typedef int element_type;
 
     template<class>
-    using rebind = P3;
+    struct rebind { };
 };
 
 template<class T>

test/pointer_traits_sfinae_test.cpp

@@ -64,15 +64,8 @@ struct P2 {
 struct P3 {
     typedef int element_type;
 
-#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
     template<class>
-    using rebind = P3;
-#else
-    template<class>
-    struct rebind {
-        typedef P3 other;
-    };
-#endif
+    struct rebind { };
 };
 
 template<class T>