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[Flang][driver] Do not emit -latomic on link line on Windows (#164648)

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Flang on Windows added `-latomic` to the link line. This library does
not exist on Windows and the linker gives a warning.
This commit is contained in:
Michael Klemm 2025-11-10 17:10:32 +01:00 committed by GitHub
parent 54053cf95d
commit b9e22ccd95
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1 changed files with 4 additions and 1 deletions
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5
clang/lib/Driver/ToolChain.cpp
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@ -851,8 +851,11 @@ void ToolChain::addFortranRuntimeLibs(const ArgList &Args,
options::OPT_fno_openmp, false)) {
Driver::OpenMPRuntimeKind OMPRuntime = getDriver().getOpenMPRuntime(Args);
ToolChain::RuntimeLibType RuntimeLib = GetRuntimeLibType(Args);
if (OMPRuntime == Driver::OMPRT_OMP && RuntimeLib == ToolChain::RLT_Libgcc)
if ((OMPRuntime == Driver::OMPRT_OMP &&
RuntimeLib == ToolChain::RLT_Libgcc) &&
!getTriple().isKnownWindowsMSVCEnvironment()) {
CmdArgs.push_back("-latomic");
}
}
}