<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/92736>92736</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [LLVM] CYGWIN: cannot build OCaml bindings.
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          carlo-bramini
      </td>
    </tr>
</table>

<pre>
    On CYGWIN, I configured successfully the latest sources at the time of writing and I tried to compile them.
Unfortunately, the process stopped with this error:
```
FAILED: bindings/ocaml/llvm/CMakeFiles/ocaml_llvm.util
/bin/sh bindings/ocaml/llvm/CMakeFiles/ocaml_llvm.dir/utility.sh f2f4223cd34c44bf
Error copying file "/home/carlo/packages/llvm/build.cygwin/bindings/ocaml/llvm/dllllvm.dll" to "/home/carlo/packages/llvm/build.cygwin/./lib/ocaml/llvm/".
```
By looking the content of that directory, there is not a `dllllvm.dll` but a `dllllvm.so` instead, but this is a nonsense:


The `dllllvm.so` is clearly a PE executable because I looked inside with hexedit, so it is just a wrong extension applied.
So, it seems that there is some piece of script somewhere that forced the extension of that file to `.so` instead of `.dll`, but at the moment I could not find it.
If somebody could give me some suggestions, I can test it and provide a PR for fixing the issue.
Without OCaml bindings, LLVM was built successfully.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJycVU9v27gT_TT0ZWBDpiU5PviQxNEPBtJfi_1X7GlBkSNpGooUyFEcf_sFaadJu93DFjBgiBzNvJn35knFSL1D3IvqTlSHhZp58GGvVbB-2QY1kqNF6815_9HB_Z__-3z8v5D3cATtXUf9HNBAnLXGGLvZ2jPwgGAVY2SIfg4aIyjOp0wjgu_gFIjJ9aCcgSNwIDTAHrQfJ7KYQseVKA6iuP3ddT7w7BSjPaeyKc0UfKoGkf00oYET8QA8UAQMwQexub28LOri-suPze3x8eEgNrfQkjPk-ihk47UarZCNtc-jkM39B_WEDVn8evdXulnNTPaaVDYtOSGbOPxEHkNByCZlIz6v4gCd7EopN9psSl2WbXcp8pD6AO2ncxpTl4YipBSyGfyIQjaZHCGbSekn1eci18LtTNas9Lk_ZZD_jtBYe0FkrZAyjf_nKqzSDbX_LCCkXP2Qh7szWO-fUmeJTe0do-OkCx4Ug6GAmn14pTsgUATnGRSIuniPuy6gnb87jz4dk4uMyqQUKSKLgyIocN5FdBHfRHJldS2qOxpH1ZNDUR2EvBmYp5jiUi9NTzzM7Ur78a3F9Lecgv-CmoVsVIzIaVKbYlftimIrZIPbbVtobZZlZ8plWba4bDfrYqkrvKnadV2ZGoXcvcfy24A_aCiCtqiCPYOCTw-AL6hnVq1FaFGrOSIc81jRpObJ4GUtBnxBQ5wGET0Qp0Rf5piGdgre9YAvjC6Sd6CmyRKaK2m_-vQOMUTEMV6o-cpG9CPCRKjzOkcdaOJ8eMoRObjzQae9HvBdjVeSs6ST5uriW8ZSRDq80PvK39U_Rj8mpSTrma3JmujIGSC-gj52GUVyq2tMT88II14Qx7nvMTJ5F68WphxkoyLOZjQF_5xGp-DTL6kB6OjlVacU44zXOp-JBz8zfLxXo31nA_fw-PjHBzipCGlN-BtjXC3MfmN2m51a4H69XdeyWG9ruRj29bbY1F3b6V2xW2_bTmGndaVlXRklt_XNgvaykGVRyWJdlLKUq1KX1Vaqna5rLNbqRpQFjorsKkvGh36R4e53crupF1a1aGM2eCkdni69pH2vDouwzzJu5z6KsrAUOb5lYWKbvwypL1EdXj8Am9s0u0RAtoPvBrFazMHu__P-ZFRpfzLqvwMAAP__Ulko6Q">