https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107221
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |13.0
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Same place it's always been defined, in gthr.h which is included by
<ext/concurrence.h>
And every other header includes <bits/c++config.h> i.e. all of these:
#include <exception> // std::exception
#include <new> // std::terminate
#include <cstdlib> // std::malloc, std::free, std::strtoul
#include <climits> // INT_MAX
#include <bits/stl_function.h> // std::less
#include "unwind-cxx.h"
#if _GLIBCXX_HOSTED
# include <string_view> // std::string_view
# include <cstring> // std::strchr, std::memset
# include <ext/concurrence.h> // __gnu_cxx::__mutex, __gnu_cxx::__scoped_lock
#endif
That's why I removed the unnecessary initial #include of it.
This should fix it:
--- a/libstdc++-v3/libsupc++/eh_alloc.cc
+++ b/libstdc++-v3/libsupc++/eh_alloc.cc
@@ -236,7 +236,7 @@ namespace
void *pool::allocate (std::size_t size) noexcept
{
- __gnu_cxx::__scoped_lock sentry(emergency_mutex);
+ __scoped_lock sentry(emergency_mutex);
// We need an additional size_t member plus the padding to
// ensure proper alignment of data.
size += offsetof (allocated_entry, data);
