# Extensions for macOS not being build after February 15

**URL:** <https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [February 23, 2022, 9:21am UTC](https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125 "2022-02-23T09:21:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Alex\_Vergara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alex_vergara/32/15205_2.png) [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Post date:** [February 23, 2022, 9:21am UTC](https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125/1 "2022-02-23T09:21:54Z")

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Since february 15 there are no builds for Slicer Elastix extension available, see [CDash](https://slicer.cdash.org/index.php?project=SlicerPreview&filtercount=1&showfilters=1&field1=buildname&compare1=63&value1=Elastix)

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**Author:** ![Alex\_Vergara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/alex_vergara/32/15205_2.png) [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Post date:** [February 23, 2022, 9:26am UTC](https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125/2 "2022-02-23T09:26:03Z")

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Actually reviewing it, I don’t see any build of any extension for macOS after February 15, see [CDash](https://slicer.cdash.org/index.php?project=SlicerPreview&begin=2022-02-16&end=2022-02-23&filtercount=1&showfilters=1&field1=site&compare1=63&value1=macos)

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**Author:** ![Sam\_Horvath](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sam_horvath/32/3092_2.png) [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Post date:** [February 23, 2022, 5:57pm UTC](https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125/3 "2022-02-23T17:57:36Z")

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Looks like there is a macOS build error for the main slicer package, which would also kill the extension builds. @jcfr looking into it now. Appears to be related to libarchive?

[https://slicer.cdash.org/viewBuildError.php?buildid=2600868](https://slicer.cdash.org/viewBuildError.php?buildid=2600868)

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**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [February 24, 2022, 6:19am UTC](https://discourse.slicer.org/t/extensions-for-macos-not-being-build-after-february-15/22125/4 "2022-02-24T06:19:09Z")

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The issue was caused by a regression introduced in [e5c5ad7](https://github.com/Slicer/Slicer/commit/e5c5ad7801b81c99a0e37b44ce570e9acbfdb7f0) (`COMP: Update LibArchive from 3.4.3 to 3.5.2 to support GCC v11`) and has been documented in the following issue:

> <https://github.com/Slicer/Slicer/issues/6219>
>
> Following https://github.com/Slicer/Slicer/commit/e5c5ad7801b81c99a0e37b44ce570e…9acbfdb7f0 associated with https://github.com/Slicer/Slicer/pull/6197, the following error is reported when attempting to build on macOS:
> 
> \`\`\`
> error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install\_name\_tool: can't open file: /Volumes/D/P/S-0-build/LibArchive-install/lib/libarchive.17.dylib (No such file or directory)
> \`\`\`
> 
> 
> \## Steps to reproduce
> 
> \`\`\`
> cmake \\
> -DCMAKE\_OSX\_DEPLOYMENT\_TARGET:STRING=10.13 \\
> -DCMAKE\_BUILD\_TYPE:STRING=Release \\
> -DQt5\_DIR:PATH=/path/to/Qt/lib/cmake/Qt5 \\
> /path/to/source/code/of/Slicer
> 
> make LibArchive
> \`\`\`
> 
> \## Expected behavior
> 
> No build error
> 
> \## Environment
> \- Slicer version: https://github.com/Slicer/Slicer/commit/e5c5ad7801b81c99a0e37b44ce570e9acbfdb7f0
> \- Operating system: macOS

It has been fixed in the following pull request now integrated into the main line:

> <https://github.com/Slicer/Slicer/pull/6220>
>
> This commit fixes a regression introduced in e5c5ad780 (COMP: Update
> LibArchive… from 3.4.3 to 3.5.2 to support GCC v11), it addresses the
> following error by updating the interface number hard-coded in the library
> path used in the "fix\_rpath" external project step specific to macOS.
> 
> Error:
> 
> \`\`\`
> error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install\_name\_tool:
> can't open file: /path/to/S-0-build/LibArchive-install/lib/libarchive.17.dylib (No such file or directory)
> \`\`\`
> 
> See #6219