mmuetzel added a comment.
The error message I get without `-lc++`:
ld.lld: error: undefined symbol: std::__1::mutex::lock()
>>> referenced by
libFortranRuntime.a(io-api.cpp.obj):(Fortran::runtime::io::IoStatementState*
Fortran::runtime::io::BeginExternalListIO<(Fortran::runtime::io::Direction)0,
Fortran::runtime::io::ExternalListIoStatementState>(int, char const*, int))
>>> referenced by
libFortranRuntime.a(io-api.cpp.obj):(Fortran::runtime::io::IoStatementState*
Fortran::runtime::io::BeginExternalListIO<(Fortran::runtime::io::Direction)0,
Fortran::runtime::io::ExternalListIoStatementState>(int, char const*, int))
>>> referenced by
libFortranRuntime.a(io-api.cpp.obj):(Fortran::runtime::io::IoStatementState*
Fortran::runtime::io::BeginExternalListIO<(Fortran::runtime::io::Direction)1,
Fortran::runtime::io::ExternalListIoStatementState>(int, char const*, int))
>>> referenced 36 more times
ld.lld: error: undefined symbol: std::__1::mutex::unlock()
>>> referenced by
libFortranRuntime.a(unit.cpp.obj):(Fortran::runtime::io::FlushOutputOnCrash(Fortran::runtime::Terminator
const&))
>>> referenced by
libFortranRuntime.a(unit.cpp.obj):(Fortran::runtime::io::ExternalFileUnit::LookUp(int))
>>> referenced by
libFortranRuntime.a(unit.cpp.obj):(Fortran::runtime::io::ExternalFileUnit::GetUnitMap())
>>> referenced 23 more times
flang-new: error: linker command failed with exit code 1 (use -v to see
invocation)
================
Comment at: clang/lib/Driver/ToolChains/MSVC.cpp:140
+ // defined in flang's runtime libraries.
+ if (TC.getTriple().isKnownWindowsMSVCEnvironment())
+ CmdArgs.push_back("/subsystem:console");
----------------
awarzynski wrote:
> mmuetzel wrote:
> > Is the MSVC toolchain used anywhere else but on Windows?
> No:
> https://github.com/llvm/llvm-project/blob/5fee1799f4d8da59c251e2d04172fc2f387cbe54/llvm/include/llvm/ADT/Triple.h#L576-L578
> ;-)
In that case, this argument could probably be added unconditionally.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D126291/new/
https://reviews.llvm.org/D126291
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