Rework as esp-idf component

Fix typo

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...3.16)
 
 project(boost_range VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
@@ -39,3 +41,33 @@ if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
 
 endif()
 
+else()
+
+FILE(GLOB_RECURSE headers include/*.h include/*.hpp)
+
+idf_component_register(
+    SRCS
+        ${headers}
+    INCLUDE_DIRS
+        include
+    REQUIRES
+        boost_array
+        boost_assert
+        boost_concept_check
+        boost_config
+        boost_container_hash
+        boost_conversion
+        boost_core
+        boost_detail
+        boost_iterator
+        boost_mpl
+        boost_optional
+        boost_preprocessor
+        boost_regex
+        boost_static_assert
+        boost_tuple
+        boost_type_traits
+        boost_utility
+)
+
+endif()

doc/reference/adaptors/map_values.qbk

@@ -14,7 +14,7 @@
 * [*Precondition:] The `value_type` of the range is an instantiation of `std::pair`.
 * [*Postcondition:] For all elements `x` in the returned range, `x` is the result of `y.second` where `y` is the corresponding element in the original range.
 * [*Range Category:] __single_pass_range__
-* [*Range Return Type:] for constant ranges, `boost::select_second_const<decltype(rng)>` otherwise `boost:select_second_mutable<decltype(rng)>`
+* [*Range Return Type:] for constant ranges, `boost::select_second_const<decltype(rng)>` otherwise `boost::select_second_mutable<decltype(rng)>`
 * [*Returned Range Category:] The range category of `rng`.
 
 [section:map_values_example map_values example]