Silence Clang's deprecated-literal-operator warning in gmpxx.h#110
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GMP's gmpxx.h still uses the pre-C++23 `operator"" _mpz` spelling (with whitespace), which Clang >= 17 diagnoses under -Wdeprecated-literal-operator. Combined with the project's -Wall -Werror, this fails the polyxx build on any modern Clang. Wrap the gmpxx.h include with a Clang diagnostic push/pop. Also ignore -Wunknown-warning-option so older Clang (< 17), which does not recognize the new warning name, does not itself error under -Werror.
Ovascos
approved these changes
May 26, 2026
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GMP's gmpxx.h still uses the pre-C++23
operator"" _mpzspelling (with whitespace), which Clang >= 17 diagnoses under -Wdeprecated-literal-operator. Combined with the project's -Wall -Werror, this fails the polyxx build on any modern Clang.Wrap the gmpxx.h include with a Clang diagnostic push/pop. Also ignore -Wunknown-warning-option so older Clang (< 17), which does not recognize the new warning name, does not itself error under -Werror.