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from 6e5ad1cc24a libgccjit: Add support for setting the alignment [PR104293] new 2ce0f5185ba libstdc++: Reduce memory usage in std::stacktrace::current new e48933f00d6 libstdc++: Use nothrow new in std::stacktrace new 7cf88759957 libstdc++: Use allocator to construct std::stacktrace_entry [...] new b2c007b87dc libstdc++: shrink-to-fit in std::basic_stacktrace::current( [...] new 3c742621ed2 libstdc++: Prefer to use mmap instead of malloc in libbacktrace

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Summary of changes: libstdc++-v3/acinclude.m4 | 35 ++- libstdc++-v3/config.h.in | 3 + libstdc++-v3/configure | 59 ++++- libstdc++-v3/include/std/stacktrace | 243 +++++++++++++-------- .../testsuite/19_diagnostics/stacktrace/current.cc | 86 ++++++++ 5 files changed, 319 insertions(+), 107 deletions(-) create mode 100644 libstdc++-v3/testsuite/19_diagnostics/stacktrace/current.cc