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MinGW: Linking error while building rustc_data_structures - ld "cannot find -lsynchronization" #49080

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petrochenkov opened this issue Mar 16, 2018 · 3 comments
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MinGW: Linking error while building rustc_data_structures - ld "cannot find -lsynchronization" #49080

petrochenkov opened this issue Mar 16, 2018 · 3 comments
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O-windows-gnu Toolchain: GNU, Operating system: Windows T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

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@petrochenkov
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ping @Zoxc probably

Haven't investigated this myself yet, just posting here in case there's a known fix.
@petrochenkov petrochenkov added the T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) label Mar 16, 2018
@Zoxc
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Zoxc commented Mar 16, 2018

Do you have a log? How did you produce this?

@retep998
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Are you getting this error while building Rust itself? If so, your MinGW installation is missing libsynchronization.a.

@retep998 retep998 added the O-windows-gnu Toolchain: GNU, Operating system: Windows label Mar 16, 2018
@petrochenkov
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petrochenkov commented Mar 16, 2018 •
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Ok, libsynchronization.a is indeed a part of mingw-w64 toolchain, but it's a relatively new part that first appeared in 6.3.0, but I use 6.2.0 due to gdb bugs in newer versions.

It looks like parking_lot depends on this library (through WaitOnAddress), and rustc_data_structures now depends on parking_lot thus bumping version requirement for mingw-w64 toolchain to 6.3.0.

I guess I'll have to do what our CI does and use newer toolchain with gdb replaced with older version.

@petrochenkov petrochenkov mentioned this issue Mar 17, 2018
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O-windows-gnu Toolchain: GNU, Operating system: Windows T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
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