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+## CMake prefix path overrides
+
+When using pkg-config as a dependency resolver we can pass
+`-Dpkg_config_path=$somepath` to extend or overwrite where pkg-config will
+search for dependencies. Now cmake can do the same, as long as the dependency
+uses a ${Name}Config.cmake file (not a Find{$Name}.cmake file), by passing
+`-Dcmake_prefix_path=list,of,paths`. It is important that point this at the
+prefix that the dependency is installed into, not the cmake path.
+
+If you have installed something to `/tmp/dep`, which has a layout like:
+```
+/tmp/dep/lib/cmake
+/tmp/dep/bin
+```
+
+then invoke meson as `meson builddir/ -Dcmake_prefix_path=/tmp/dep`