<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/152976>152976</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm-config --ldflags incorrect when llvm is installed inside build directory
        </td>
    </tr>

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

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

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

<pre>
    Originally reported in https://discourse.llvm.org/t/compiled-llm-config-executable-programs-do-not-correctly-point-to-the-installation-directory/87766.

Build llvm as follows:
```
$ mkdir build-llvm-config && cd llvm-config
$ make ../llvm-project/llvm -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/home/david.spickett/build-llvm-config/llvm.install -G Ninja -DLLVM_CCACHE_BUILD=ON && ninja && ninja install
```
Note that the install directory is inside the build directory.

This causes the `llvm-config` in the installed directory to report an incorrect library path:
```
~/build-llvm-config$ ./llvm.install/bin/llvm-config --ldflags
-L/home/david.spickett/build-llvm-config/Release/lib
```
The one in the build directory's `bin` points to the build's library dir as expected:
```
~/build-llvm-config$ ./bin/llvm-config --ldflags
-L/home/david.spickett/build-llvm-config/lib 
```
I think llvm-config has autodetected as `InDevelopmentTree` true (which it is, sort of) and `DevelopmentTreeLayout` of `CMakeBuildModeStyle`. This causes it to put `build_mode` in the path which is read from `LLVM_BUILDMODE` which would be `Release`.
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJysVcFu4zYQ_Rr6MpBA0ZIcH3TwWlEb1EkWG7doTwYlji2uKVIgqXh96bcXVOSs19nLAgV8kebN6M2bN2PunDxoxIJkn0hWzvjgW2OLkr9K8dLL5ojez2ojzsWzlQepuVJnsNgb61GA1NB63zsyXxFWEVYJ6RozWIexUq9dbOyBsMoTVjWm66VCESnVRY3Re3mI8Bs2g-e1wqi35mB55yJhIm181BhrsfHqHPVGah95E_kWI6md50pxL42OhAwQY8-EVXeLRZ7HhK4IXX0apBIQvg_cwd4oZU4jQ7oiOZ1-dEVYCt1RSAt1SIhCwsQMCMsJy6F5KzO9veTwI0IcE1aNsd6ar9j46RGicv24-uN-9-nPh0252_7z-Z7Myy-okDt8Dz48vWxXm83u85f76uFvMi8Jq1rTYRAwCB-7SXnCqg_kpi_FkxYQ_QZPUn_lEJWbzV-Pu_V6tf59IkDm5fPTpRs9on54mGrcKPNkPIJvuQff4gUD73KDdOGlFDjGR4Lfo9MQtq100PDBoRtRJKfXPeQ0eOeqPF6VAG8miwHXIPVkBlCyttyeoee-_TjPf38uVgrxjWIBJ_VlftPEo0iJveIHR-gq2vziPKb5hpKyvqG1bRGMxku7N2oRtnBBm0AopzCa3YX-37Ej4tJ5cCt3gN96bDyKXxThf-5ayRpuPv8AvpX6eL010HIHfPBGoB9JhwZITh90ia-oTN-h9luLGPr3dkAg7O7UyqYF6UE6wtbgghXMnrAlcC1C9k3uhp_N4EMFsw_h9SM_4ngHHo3AF39WoXwM166UPujcD37UP2B3nRF4Zc3gM5ioOLDIBeyt6QJ-3LRxxR6fy_uQ84Y7mUEJqEe_X1yR03gmirlYzpd8hkWyyNIlZcsknbUFTWmT5plgd1nSpJiLNOUsFfkSRbpIeD6TBaMso3dJQpc0ydK45mmySATL-Z7XWXZHUoodl-r94M6kcwMWScaWi3ymeI3KjdedMY0nGKOEsXDsbTEOqh4OjqRUSefd9zJeeoXFT91ytZOnFvXbrX27CtMuT_fhxu2zwarixz-Mg_TtUMeN6SZrfryrI2NHWDW19Fqw_wIAAP__0yg0TQ">