mirror of git://gcc.gnu.org/git/gcc.git
ff27340046
The macro definitions in <version> should depend on the same preprocessor conditions as the original macros in other headers. Otherwise <version> can define macros that imply the availability of features that are not actually defined. This fix is incomplete, as __cpp_lib_filesystem should depend on whether libstdc++fs.a is supported, and several macros should only be defined when _GLIBCXX_HOSTED is defined. Also, the feature test macros should define their value as type long, but most are type int. * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP) (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Move definitions here. (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Likewise. Use !__is_identifier instead of __has_builtin. * include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP) (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Remove definitions from here. * include/std/version [!_GLIBCXX_HAS_GTHREADS] (__cpp_lib_shared_timed_mutex, __cpp_lib_scoped_lock) (__cpp_lib_shared_mutex): Don't define when Gthreads not in use. [!_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP] (__cpp_lib_has_unique_object_representations): Don't define when builtin not available. [!_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE] (__cpp_lib_is_aggregate): Likewise. [!_GLIBCXX_HAVE_BUILTIN_LAUNDER] (__cpp_lib_launder): Likewise. * libsupc++/new (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Remove definition from here. From-SVN: r263184 |
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| include | ||
| libsupc++ | ||
| po | ||
| python | ||
| scripts | ||
| src | ||
| testsuite | ||
| ChangeLog | ||
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| ChangeLog-2015 | ||
| ChangeLog-2016 | ||
| ChangeLog-2017 | ||
| Makefile.am | ||
| Makefile.in | ||
| README | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.host | ||
| crossconfig.m4 | ||
| fragment.am | ||
| linkage.m4 | ||
README
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.