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Fix standalone build with Clang

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The config.hpp uses `BOOST_LIBSTDCXX_VERSION` which isn't defined in
standalone mode so `BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW` will
be defined.
This then causes build failures for code expecting the availability of
string_view.
This commit is contained in:
Alexander Grund
2025-10-23 18:44:08 +02:00
committed by Gennaro Prota
parent 6f17b60377
commit 3613e9578d
1 changed files with 17 additions and 13 deletions
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30
include/boost/static_string/config.hpp
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@@ -168,27 +168,31 @@
#include <cassert>
#include <stdexcept>
#if defined(__has_include)
# if !__has_include(<string_view>)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
# endif
/*
* Replicate the logic from Boost.Config
*/
// GNU libstdc++3:
#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
#if (BOOST_LIBSTDCXX_VERSION < 70100) || (__cplusplus <= 201402L)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
#endif
#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
# if ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 70100) || (__cplusplus <= 201402L)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
# endif
// libc++:
#elif defined(_LIBCPP_VERSION)
#if (_LIBCPP_VERSION < 4000) || (__cplusplus <= 201402L)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
#endif
# if (_LIBCPP_VERSION < 4000) || (__cplusplus <= 201402L)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
# endif
// MSVC uses logic from catch all for BOOST_NO_CXX17_HDR_STRING_VIEW
// catch all:
#elif !defined(_YVALS) && !defined(_CPPLIB_VER)
#if (!defined(__has_include) || (__cplusplus < 201700))
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
#elif !__has_include(<string_view>)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
#endif
# if (!defined(__has_include) || (__cplusplus < 201700))
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
# elif !__has_include(<string_view>)
# define BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW
# endif
#endif
#if !defined(BOOST_STATIC_STRING_NO_CXX17_HDR_STRING_VIEW) || \
@@ -275,4 +279,4 @@ using basic_string_view =
#define BOOST_STATIC_STRING_USE_STD_FORMAT
#endif
#endif
#endif