<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/101503>101503</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Neither origin/release/19.x nor 19.1-rc1 passes `cmake` build step for macOS 14.5 w/ Apple Silicon M2
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          catull
      </td>
    </tr>
</table>

<pre>
    They both initially fail with 

```
.....
-- LIBC_CONF_MEMSET_X86_USE_SOFTWARE_PREFETCHING: OFF
-- LIBC_CONF_STRING_UNSAFE_WIDE_READ: OFF
-- LIBC_CONF_ENABLE_PID_CACHE: ON
-- LIBC_CONF_ENABLE_TID_CACHE: ON
-- Writing config doc to llvm-project/libc/docs/configure.rst
-- Set CPU features:
-- Compiler features available: float16
-- Performing Test LIBC_CC_SUPPORTS_PATTERN_INIT
-- Performing Test LIBC_CC_SUPPORTS_PATTERN_INIT - Success
-- Performing Test LIBC_CC_SUPPORTS_NOSTDLIBPP
-- Performing Test LIBC_CC_SUPPORTS_NOSTDLIBPP - Success
-- Performing Test LIBC_CC_SUPPORTS_NOSTDLIBINC
-- Performing Test LIBC_CC_SUPPORTS_NOSTDLIBINC - Success
CMake Error at llvm-project/libc/CMakeLists.txt:353 (message):

 llvm-project/libc/config/darwin/entrypoints.txt
  file not found.


-- Configuring incomplete, errors occurred!
```

Renaming the folder libc/config/darwin/**arm** => libc/config/darwin/**aarch64** gets past this hurdle.
Only to fail once more later on with:

```
-- Compiling and running to test HAVE_PTHREAD_AFFINITY
-- Performing Test HAVE_PTHREAD_AFFINITY -- failed to compile
-- Configuring done (41.8s)
CMake Error at llvm-project/libc/test/UnitTest/CMakeLists.txt:41 (add_dependencies):
 The dependency target "libc.src.__support.OSUtil.osutil" of target
 "LibcTest.unit" does not exist.
Call Stack (most recent call first):
 llvm-project/libc/test/UnitTest/CMakeLists.txt:52 (add_unittest_framework_library)


CMake Error at llvm-project/libc/test/UnitTest/CMakeLists.txt:46 (add_dependencies):
 The dependency target "libc.src.__support.OSUtil.osutil" of target
 "LibcTest.hermetic" does not exist.
Call Stack (most recent call first):
  llvm-project/libc/test/UnitTest/CMakeLists.txt:52 (add_unittest_framework_library)


-- Generating done (5.0s)
CMake Generate step failed.  Build files cannot be regenerated correctly.
```

This behaviour is seen on:

- `main`
- `origin/release/19.x`
- `llvm-project-19.1.0-rc1.src.tar.xz`

</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzEVlFv4jgQ_jXmZUSUOIQtDzykNNkitYCa9PbuKXKcgfjq2Mh22nK__uTAst1ee7fqrbRVZQL-ZjzfzDcTM2vFTiHOSXJJkqsR612rzZwz10s5qnVzmJctHqDWrgWhhBNMygNsmZDwJFwLJLwiYXpap-Hpf_ga-L_j43gMN8vLRbVYr_LqNrstsrL6_WJa3RdZVazz8kt6l1WbuyzPysX1cvWZxCms8_wN46K8W64-V_erIs2z6svyKqvusvTqfYNslV7eZNVmeVUt0sV1NiBX7wPLd4BfjHBC7YBrtRU7aDQHp0HKx268N_pP5I7QXIqaE5o3mltC8yO0NxgY686OCnSw2NzDFpnrDVoSp-e9he72QqI5bwJ7ZEKyWqIPZys1c9H0DN-g2WrT-bBKtO5EZlEV95vN-q4sqk1altndqlquluXHrGAMRc85Wvvj9qt1UV7dLC83m4_Y_J8Tl6vFh4xen7m4ZQ8ImTHaAHPvVHkA3QjrbOCeHYnTOImB0IsOrWU7JHR2Lu1xfcfPUSZeNsw8CUVojsqZw14LdXJ9tIatkAhKO9jqXjXBd633TUFHzXnaQnHd7SU6JHQB6NlY0Jz3xmBDaPRm1x7XO1RsSJ1rEbZaNmjg3XAJTQlNmemOD0DiKxJn_4lnhrfTyclmh87CnlkHrhUW2t40Ek8U10oefLMNU0crjtBpgyCZQwNaDYPoVapfkTq3lqfEVAOmV2qgp8F5cVynv2XVprz2s6RK89xL_493pfQmGsbjIUJsvFd-7OQ369JohV4okyi4sF4mP645Hyyh-b0Srjw-_kOFk8j7Zk1TNbhH1aDiAu1LNULZIpw3D-CY2aEDQqk_JbCGB1Vl-_1eGxesi3snZKBt74QklILengxOzgilN6LmPpygV8J5TKPRDkrFZ2HdqYwLJiUUjvGHoUu0dWCQo3LA_c5W-Cn5MswPpyChX1PgA_IG1dawDp-0eaikqA0zh3PeX64_rQbTX1eDFk2HTvCfV4dfUIjxGD6jQsPcy4ZJgvB1v5xQCNbh_tR_AcBlL2QzDEwLnCmfghrB4O4Eb4BrY5A7eQj-ZQyWfhbV2LJHoXsDwoJFVKDVq3EzBjINOybUt4njf9FG7IaJZ1Ais0hoHs2C5-9BL5M7jmZBFIRjw6NBAo6Z4PmvM37UzONmFs_YCOfRJ0oTOp1GdNTOWZTMasq3Icc63vIJiz9RnDSTBKML_ilKRmJOQzoJL8IoSuJpQoOLZBaGk9ksnk4iFiZTMgmxY0IGPpxAm91IWNvjPAqjJIxHktUo7XBLpFThEwy7hFJ_aTTzgUPd7yyZhHKo_9mNE07ifIXCtX5av50RUNqA5-6Z-9eARetzwzv2gGQaQj3U81hjbaBjfF1ANAkSeCI0h3S_lwiFkIJrBbd01Bs5b53bD7cr_8bJd8K1fR1w3XkFy8evHy90PXDyF7cT6cc5_TsAAP__L-121g">