[gcc r15-3379] libsupc++: Fix handling of m68k extended real in

https://gcc.gnu.org/g:4bf758b212170dba2b5a1881950e949ec4f8a58b commit r15-3379-g4bf758b212170dba2b5a1881950e949ec4f8a58b Author: Andreas Schwab Date: Mon Sep 2 10:43:20 2024 +0200 libsupc++: Fix handling of m68k extended real in PR libstdc++/116513 * libsupc++

[gcc r14-10163] libstdc++: Update powerpc-linux-gnu baseline_symbols

https://gcc.gnu.org/g:d7c06a80b54486117a72fb2e7b007ad1838d6d0e commit r14-10163-gd7c06a80b54486117a72fb2e7b007ad1838d6d0e Author: Andreas Schwab Date: Sat Feb 3 14:00:41 2024 +0100 libstdc++: Update powerpc-linux-gnu baseline_symbols * config/abi/post/powerpc-linux-gnu/bas

[gcc r14-9975] libstdc++: Update baseline symbols for riscv64-linux

https://gcc.gnu.org/g:52972ab5c75634872b508806310dffd8c32933b9 commit r14-9975-g52972ab5c75634872b508806310dffd8c32933b9 Author: Andreas Schwab Date: Sun Dec 31 10:49:34 2023 +0100 libstdc++: Update baseline symbols for riscv64-linux * config/abi/post/riscv64-linux-gnu/bas