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x/exp/shiny/driver/mtldriver: fails to build on darwin/arm64 because its mtl dependency doesn't support darwin/arm64 yet #43221

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bcmills opened this issue Dec 16, 2020 · 5 comments
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x/exp/shiny/driver/mtldriver: fails to build on darwin/arm64 because its mtl dependency doesn't support darwin/arm64 yet #43221

bcmills opened this issue Dec 16, 2020 · 5 comments
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arch-arm64 FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done. OS-Darwin
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Unreleased

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@bcmills
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bcmills commented Dec 16, 2020

2020-12-15T15:35:30-b5a6e24/darwin-arm64-11_0-toothrot

# dmitri.shuralyov.com/gpu/mtl
In file included from mtl.m:5:
/tmp/buildlet/gopath/pkg/mod/dmitri.shuralyov.com/gpu/mtl@v0.0.0-20190408044501-666a987793e9/mtl.h:3:21: error: typedef redefinition with different types ('signed char' vs 'bool')
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/objc/objc.h:78:18: note: previous definition is here

CC @golang/release @dmitshur
@bcmills bcmills added OS-Darwin NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. arch-arm64 labels Dec 16, 2020
@gopherbot gopherbot added this to the Unreleased milestone Dec 16, 2020
@mvdan
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mvdan commented Dec 16, 2020

Does such a complex dependency really belong in x/exp? It feels like it will mean a continuous investment of time to keep it working on all the platforms we have builders on, which is probably the kind of work that belongs outside the x repos.

@dmitshur dmitshur self-assigned this Dec 16, 2020
@dmitshur dmitshur added NeedsFix The path to resolution is known, but the work has not been done. and removed NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. labels Dec 16, 2020
@dmitshur
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I've already prototyped a fix locally and intend to clean it up and push it.

@bcmills
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bcmills commented Dec 16, 2020 •
edited

@mvdan, that's an interesting point, because last I checked that package was not actually built as a dependency of x/exp (see #37175 (comment)). I wonder what has changed since that analysis.

@dmitshur
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dmitshur commented Dec 17, 2020 •
edited

@bcmills In that comment, you ran go list -f [...] all presumably on Linux or another non-Darwin OS, which did not match the Darwin-only golang.org/x/exp/shiny/driver/mtldriver and golang.org/x/exp/shiny/driver/mtldriver/internal/coreanim packages that import mtl.

The mtl package is a real dependency of shiny when it is built with -tags metal on macOS.

@dmitshur dmitshur changed the title x/exp: build failure on darwin-arm64-11_0-toothrot due to C type mismatch in dmitri.shuralyov.com/gpu/mtl x/exp/shiny/driver/mtldriver: fails to build because mtl package it depends on doesn't support darwin/arm64 yet Dec 17, 2020
@dmitshur dmitshur changed the title x/exp/shiny/driver/mtldriver: fails to build because mtl package it depends on doesn't support darwin/arm64 yet x/exp/shiny/driver/mtldriver: fails to build on darwin/arm64 because its mtl dependency doesn't support darwin/arm64 yet Dec 17, 2020
@dmitshur dmitshur mentioned this issue Dec 17, 2020
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@gopherbot
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Change https://golang.org/cl/279293 mentions this issue: shiny/driver/mtldriver: add darwin/arm64 (macOS) support

@golang golang locked and limited conversation to collaborators Dec 21, 2021
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