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FIN: update appveyor mingw description
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appveyor.yml
21
appveyor.yml
@ -20,28 +20,17 @@ environment:
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# 32/64-bit MinGW builds.
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#
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# The MinGW builds unfortunately have to both download a custom toolchain and
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# avoid the one installed by AppVeyor by default. Interestingly, though, for
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# different reasons!
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# We are using MinGW with posix threads since LLVM does not compile with
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# the win32 threads version due to missing support for C++'s std::thread.
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#
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# For 32-bit the installed gcc toolchain on AppVeyor uses the pthread
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# threading model. This is unfortunately not what we want, and if we compile
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# with it then there's lots of link errors in the standard library (undefined
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# references to pthread symbols).
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#
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# For 64-bit the installed gcc toolchain is currently 5.3.0 which
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# unfortunately segfaults on Windows with --enable-llvm-assertions (segfaults
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# in LLVM). See rust-lang/rust#28445 for more information, but to work around
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# this we go back in time to 4.9.2 specifically.
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# Instead of relying on the MinGW version installed on appveryor we download
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# and install one ourselves so we won't be surprised by changes to appveyor's
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# build image.
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#
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# Finally, note that the downloads below are all in the `rust-lang-ci` S3
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# bucket, but they cleraly didn't originate there! The downloads originally
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# came from the mingw-w64 SourceForge download site. Unfortunately
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# SourceForge is notoriously flaky, so we mirror it on our own infrastructure.
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#
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# And as a final point of note, the 32-bit MinGW build using the makefiles do
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# *not* use debug assertions and llvm assertions. This is because they take
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# too long on appveyor and this is tested by rustbuild below.
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- MSYS_BITS: 32
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RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-ninja
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SCRIPT: python x.py test
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