<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/87728>87728</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang] static constexpr char[] inside lamdba causes link error
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

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

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

<pre>
    Clang version: trunk
OS: Linux

[Live example](https://godbolt.org/#z:OYLghAFBqd5QCxAYwPYBMCmBRdBLAF1QCcAaPECAMzwBtMA7AQwFtMQByARg9KtQYEAysib0QXACx8BBAKoBnTAAUAHpwAMvAFYTStJg1DIApACYAQuYukl9ZATwDKjdAGFUtAK4sGe1wAyeAyYAHI%2BAEaYxBIAzKQADqgKhE4MHt6%2BekkpjgJBIeEsUTFc8XaYDmlCBEzEBBk%2Bfly2mPZ5DDV1BAVhkdF6CrX1jVktQ929RSUSAJS2qF7EyOwcBJgsCQbrANQmsW5oDEM7yAh1AFQ7Q8T72CYaAII3Xg47NcR7AOxWXwAi%2BysTwej3Wm22mD2ByOJzOl2uBFusXuTwAbqg8OgdvxUBAPvs3Dc7uYAGyk2bfX4A4FPYIEHYsJjBCAUkw/EE7TnY1C4kwAVisfL%2BlI5XLFE0cyFOAiGmFUCU%2BcM%2BRIF/OF%2B3VZjMRK1gNFYs5xEwBCWDHeiIJRORbKpeqeYrZfxZsztj0dII481onD5vD8HC0pFQnDc1ms10Wy0h5liPFIBE0nvmAGsQHy%2BQA6DQk2J8gAcAE4zCSNJI86W%2BfpOJI/Ymg5xeAoQBp44n5nBYDBEChUJs6NFyJQ0H36DFgGUzHw6OtiE2IBE6xFgnUAJ6cONL5jEFcAeQi2kqCe4vGHbEEO4YtDXAd4WAiXmAbjEtCbx9IWEZRnEN/feCNVVRTBX0DOVKi8dY6zpNo61oPAImIVcPCwOtETwFh114QDiAiZJMD%2BDZDGAWCjDbPgDGABQADU8EwAB3HcEkYDCZEEEQxHYKQWPkJQ1DrXQWgMEjTEsax9DgptIHmVAEg6V9eFQLDiExID4HmCoqmcCBXFGZpSECYI%2BmKAYWhyVIBB07JkjMhgpn6UpWnaaphgaTwmkGNpDycyYDOmYzbGcizxmc2yjNKNTIxWOYqw4X1SH9QNgw4HZVDzEkAFoSUkHZgGQKUygzMwdggXBCBIPYzFjWZeCPLRZhTNMW29Dga1IdDYkkAqSy4As8z5MxCwLPlYnieL5IbWxm1bG92y7CAkEWAgEnAwcIGHBJ%2B2IUJWFWFL0sy05BOAHYuDzDMuCzXhMHwIglPQPR%2BFY0RxC4EkuMUFR1B/fjSFohCEgwr0fVrH9Ep3cClvpVAqGS1KMqynK8tiAqio8EdonKyrqrbeYEEwJgsBiFlopa9CuEzEl036qnJBJF6vh6uK60SxtJpqz1SA7bs1o2lbudHFBDpOrgWxoWgZznBcf03VdmOl7c9wPBxmNPRgCAvK86zvB8n1oF9mI/Qjv0DfB/0cQDgMu1QwIgn8oKawNYPgxCMFWQNUPQt8sJwpR8M/IjglAaayKYCjqLohimLfB7hCejjpGj97eK%2BkBJ0OlAw0sMSIgkonpNk8aFOiW6VMkhzPM07TXLGPSGHQEKZhMqyOkCxIm7Seu/PUjouhGKvdK7rz6g7%2ByJl7zJ%2B%2BCny7KihQIo4wGYuBhLOBhvasuQQ7jtO86NCKkqboxrgqqm2qcbxgnKAXkmU8zAsNALSQC1iDQvkkV%2BNHLStRvrDgWZbNmZrwDmiABaENea9nWqOLabBOC7ThgdQiW8zoXT0tdEgmJ7qyDYs9eOshE6fUDLoScv0mD/WPAvWK39Qbg3AjsKGq94Eb0QSdZBu8ICo0gejGMZhj4AKvrwdCZgOpcC%2BHyDQZh0xfBem/e%2BXxGYg3Gk2f%2B2NSCpkkB1J%2BmVhZfFiINbq6ZoqxCXmNX%2BJ8kzRTMMYn%2BWNprzCwikZwkggA%3D%3D%3D)
Minimal code example:
```cpp
template <const char* str>
struct Str {};

template <const char* str>
void foo(Str<str>&&) {}

int main() {
    foo([] {
        static constexpr char str[] = "str";
        return Str<str>{};
    }());
}
```
Linking errors:
```
/opt/compiler-explorer/gcc-13.2.0/lib/gcc/x86_64-linux-gnu/13.2.0/../../../../x86_64-linux-gnu/bin/ld: /tmp/example-4a4736.o:(.debug_info+0x70): undefined reference to `main::$_0::operator()() const::str'
/opt/compiler-explorer/gcc-13.2.0/lib/gcc/x86_64-linux-gnu/13.2.0/../../../../x86_64-linux-gnu/bin/ld: /tmp/example-4a4736.o:(.debug_info+0x113): undefined reference to `main::$_0::operator()() const::str'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
Execution build compiler returned: 1
```
Expected behavior: no errors.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzUN0mTgzivv4a-UN0FhgA59MFmSQghhGyEXKZYHENYwxKWX_8K0j3fzJs5vMs7fCmXgyVZ1mZZ8uo6JjnG39QCUQvlw2ubqKi-X171LPoPvwiHbzn1ckK_cFXHRU5xkG6qNk8oRqEYaB0nwDbO2_4N-JkXaBu_MI17LytTTC0UCkhR05Q1xUEKaBTQSBH6Rdp8FRWZAdxIcdBytySCGnqGC1vuodvtXWTKGTqEaAs11pYD6O1VGZpjhxoTitDutMa00QAPZGk0tqvCoY59xr5CuZcQgkaB8hOEZ7guO2i-oOaejs2GsIoOSyi70G7dNkmXN3jqFOMRwpV2bqDB1yvMdnDAcHDhWqfAAiCoem6PdDgaNlSexIhU3lw3wozDSVI-yAbpWK3PJy2Qrp6rZKmM1FFFKJlp7ukAsv1toSgXFsFLlISaIFdX9nFJGnsJlofj-Qg3R_DURHWwugBtSC3bfgV3dlY7i0JRTXGAEQs1W7Slkwhk14O6zl0JL-6Cgwit3rl2MJ4PG-pThx-ckwGQKQAN1ma0UtAira2v7amD_pNIFglf_RnB_avmlEBsXbgaEuDfrzzktb2rq2u33jyQDM9JRwFNVcVT7rIyn3TwEtf37XxQqi-uW01lgkGzYLzKtLN8nhGBOf8d9MnXljYvuMvtYR4Mluw0t170aodkR1njWN8crINvlPiJ3ep272_12DyYUNd5iS1yZfFSpLXMlJqdKwGb1SzjDEy0SOO9piOVyV8ZXNX2epjPsKGg2AnYSAQGUOVH-bjb6JLgvH1QWhudApqbkUWPYWGjkufzRY5cBalydN7Uwk4bNjaz5gRFI6vzuO4Eq4lVoCNV6DWSn-FGCKzddvFQtQBiOwbJU8b8a7X2VdXi3Ua5wpB3YHzNoP9QG9nvl7qj3g65uqOAdsfy7nI5nNCVUayLEUuhK4zlrhDYYg_1TL8Ee7mzGvXUaRHL8rYSw_i2MZVZeuWmrKAjPxR_T5QVRDZUzpLaQcStAzVxFfmmqqrdr13DdvbJxmaV6mo7xFQfJ7X2-qVCykZfZxeoEuGyxJq9VWK11xV-ncnFMwtkdNVWt_Koyu475DMDuk40XHSEGHGTPMyIlLlwLp3c88qIeKcuS1a7UhmCwVWszB39VRCPfRaA4bEzdie9dyz32fFX9rhe2jvS8evbRRnVBGrF8Zysb2RlG-eBjGYXEnJFMtL37qg9nBuW99vDLTrtTAcsFeKxeqi4SQKfx4GHtTQuzF7utvvUzWO8Xei-02esv1qCQZRhojqQqDnsAn21RptZE6CfN47maFumHpgFsuDabZVRMVt5vEbmutNJurf3h5lWc5lDL_Nq0ppn7cCiyW2Po1ZEskq6irlfqvVSLblATl_lBT5XR9Ywn0NuSE0Mn3EhqWGRG0P1rHzsqmq3ITWKtbQovaXcqqOaMpzwzDdoowmvSGgNgTn2zaZ8juwRin7NFiD123CtIaW0KuL0hUNuY46CO8NdwsxKxWDZ7VGf7fYHIsOXIQnjC0k5W2jLbIpt-_FilPskNRPYCjFb1u50kkuF4XU7d0962dQce3fe241Ub7ryIJkU0PQHSaHnDYYrP57bIoqz7R2JkYwfj3L1WIrYmG2ToA1jpbBjavOok6TIy10ieZoVO8LFTKJxbzLi6bpd7Y-rta0at8h8DlYi93omHnFLAW1_fhRttDJeoSFWo0DEd7rapOL49tQ8yfkgGnFk6wXfrdwWRVsLRS-vbm1bfDSWJOxkI3n6RV-R5zMDz8DvSW7Aa5KdpRHWO7g92jIbK_YrSS4zx916e2wOr0ohzs3fZbeqU7IYIk_dYW-ZO09r6_nIksVTREI7dqSxuJ6YJlRJthGfg-LWS2zVkSrcz8q2OAYvJlMooDl7-HIMbmn7hIOP2lg9l7zqM_YxvKFW0uWCIfixMm_Rg4fGq-pC-UasMpBnkdaDYt8ipr8jnFFAwzPw2q9cwq0ScH_H7e4ol0mC2Ldxskt0u2uxvvOfwq149vI1211nzEZKxsPJNN18Xjq7shrlLk5uXUIIpMCCU_46Ld_PtBnncealdFCE_3mrud83XGDeIyjLN6TBWZl6DaYpTg6KvG7oIPIqCkC6biqKU99UdVO1QUMfm4qmRESJCsWhv9YG_zcuryIO6XtRUEA6TmD5BwmEeSx_ef-FcZw3dObFOQWkX4IZTtP0D6d3jfN3zPSrG6-JA3qWBvdlNUs0i_OzgVNoCoAJAMCf6vzurnDTVjn9NzH_rvhENa1nwabxp0X-1ODX2O_lNs6TOCc0rqqiqv_pkp8l0IqyoYAWFFkZp7j6xH2ZFhWupvoqCD5Z7gt8MRTQ0th_gyig9ZLwh8B_plPN9kny6Vb-Sff19c_pX-j9ychaGk61HwW0JiunAH7Hzyfv8SInfBVzpSd9hdhvyR9xfi8ogJheZGb9Id3mIb7HOQ7pCt9xhfMA001BUwIz-5CD837-D-b9WZS48pqi-rXh7OLZYW_87Bvxv9cuLMv9_xsmmCp5akqyaDppjq7pI43zBFd0UGSZl4f03YtTHNJd3EQ07uPmnR9YmgJSW2P68zXJU2NMx_mrCLxmagt-U4ra46CdILTfxmlI_7rg55bg2Tbsv4az2pc4aHBI-zjyXvFbtLz4uQRfH-E3Fy65pfeBv1mRBUDkuaX4EX1zYgD8cCn5LMNxOFzexRAIjIcXS15Y3n3mI_4GDOAZnuEBxwuc-CWJDCuFosSxd97H4p3iGZx5cfqVpq9s6kg-4rpu8bckikD6SD0fp_XcIAHwY0Iw9UrV90T_6bekpngmjeum_g-HJm7Suat671go_55lfjJMnNdxiOnUy0LfowOvrXE9u-Wt_Udbpd__q3-Km6j1v4JiejymU3_-PsuqeOBgCv9ZiZoC2qzH_wQAAP__suhLUw">