2f26b26721
The new std::from_chars implementation means that those symbols are now defined on Solaris 11.3, which lacks uselocale. They were not present in gcc-11, but the linker script gives them the GLIBCXX_3.4.29 symbol version because that is the version where they appeared for systems with uselocale. This makes the version for those symbols depend on whether uselocale is available or not, so that they get version GLIBCXX_3.4.30 on targets where they weren't defined in gcc-11. In order to avoid needing separate ABI baseline files for Solaris 11.3 and 11.4, the ABI checker program now treats the floating-point std::from_chars overloads as undesignated if they are not found in the baseline symbols file. This means they can be left out of the SOlaris baseline without causing the check-abi target to fail. libstdc++-v3/ChangeLog: PR libstdc++/103407 * config/abi/pre/gnu.ver: Make version for std::from_chars depend on HAVE_USELOCALE macro. * testsuite/util/testsuite_abi.cc (compare_symbols): Treat std::from_chars for floating-point types as undesignated if not found in the baseline symbols file. |
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