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[clang] Handle tm mangling on Solaris in PPMacroExpansion.cpp #100724

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Jul 26, 2024
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[clang] Handle tm mangling on Solaris in PPMacroExpansion.cpp #100724

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10 changes: 10 additions & 0 deletions clang/lib/Lex/PPMacroExpansion.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1604,6 +1604,16 @@ static bool isTargetVariantEnvironment(const TargetInfo &TI,
return false;
}

#if defined(__sun__) && defined(__svr4__)
// GCC mangles std::tm as tm for binary compatibility on Solaris (Issue
// #33114). We need to match this to allow the std::put_time calls to link
// (PR #99075).
asm("_ZNKSt8time_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE3putES3_"
"RSt8ios_basecPKSt2tmPKcSB_ = "
"_ZNKSt8time_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE3putES3_"
"RSt8ios_basecPK2tmPKcSB_");
#endif

/// ExpandBuiltinMacro - If an identifier token is read that is to be expanded
/// as a builtin macro, handle it and return the next token as 'Tok'.
void Preprocessor::ExpandBuiltinMacro(Token &Tok) {
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