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Bazel 4.0.0 does not work with XCode 11.3 #12905

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jbms opened this issue Jan 26, 2021 · 4 comments
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Bazel 4.0.0 does not work with XCode 11.3 #12905

jbms opened this issue Jan 26, 2021 · 4 comments
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platform: apple type: bug untriaged

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@jbms
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jbms commented Jan 26, 2021

This line here:

bazel/tools/osx/crosstool/cc_toolchain_config.bzl

Line 5369 in 8959dff

flag_groups = [flag_group(flags = ["-fdebug-compilation-dir", "."])],

introduced in this commit:

0cb8757

causes Bazel 4.0.0 to not work with XCode 11.3 because it does not support the -fdebug-compilation-dir flag:

clang --version
Apple clang version 11.0.0 (clang-1100.0.33.16)

clang: error: unknown argument: '-fdebug-compilation-dir'

That version of XCode is still in pretty common use.
@keith
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keith commented Jan 26, 2021

#12882

This was referenced Jan 26, 2021
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arunkumar9t2 pushed a commit to arunkumar9t2/bazel that referenced this issue Feb 9, 2021
@keith @arunsampathkumar-grabtaxi
Revert "Switch to -fdebug-compilation-dir"
c126a57 
This reverts commit 0cb8757.

This flag isn't supported by Xcode 11.2, which is the newest available
version for macOS 10.14

bazelbuild#12354 (comment)

Fixes bazelbuild#12905

Closes bazelbuild#12882.

PiperOrigin-RevId: 355126529
@dyrone
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dyrone commented Feb 25, 2021

Found this problem too

@keith
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keith commented Feb 25, 2021

FYI to workaround this now you can pass --features=-debug_prefix_map_pwd_is_dot

@dyrone
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dyrone commented Feb 25, 2021

FYI to workaround this now you can pass --features=-debug_prefix_map_pwd_is_dot

Thank you, it works as usual now

philwo pushed a commit that referenced this issue Mar 15, 2021
@keith @philwo
Revert "Switch to -fdebug-compilation-dir"
b9d3311 
This reverts commit 0cb8757.

This flag isn't supported by Xcode 11.2, which is the newest available
version for macOS 10.14

#12354 (comment)

Fixes #12905

Closes #12882.

PiperOrigin-RevId: 355126529
philwo pushed a commit that referenced this issue Mar 15, 2021
@keith @philwo
Revert "Switch to -fdebug-compilation-dir"
4fe3d56 
This reverts commit 0cb8757.

This flag isn't supported by Xcode 11.2, which is the newest available
version for macOS 10.14

#12354 (comment)

Fixes #12905

Closes #12882.

PiperOrigin-RevId: 355126529
haberman added a commit to haberman/upb that referenced this issue Apr 16, 2021
@haberman
Fixed the macOS build for XCode 11.3.
b344a6c 
This works around:
  bazelbuild/bazel#12905
@nakabonne nakabonne mentioned this issue Apr 23, 2021
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Revert "Switch to -fdebug-compilation-dir" keith/bazel
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@keith @jbms @gregestren @dyrone