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-rw-r--r--book/src/requirements.md5
1 files changed, 5 insertions, 0 deletions
diff --git a/book/src/requirements.md b/book/src/requirements.md
index 14dc1922..fad02cda 100644
--- a/book/src/requirements.md
+++ b/book/src/requirements.md
@@ -23,6 +23,11 @@ greater.
Download and install the official pre-built binary from
[LLVM download page](http://releases.llvm.org/download.html).
+You will also need to set `LIBCLANG_PATH` as an [environment
+variable](https://www.techjunkie.com/environment-variables-windows-10/) pointing
+to the `bin` directory of your LLVM install. For example, if you installed LLVM
+to `D:\programs\LLVM`, then you'd set the value to be `D:\programs\LLVM\bin`
+
#### macOS
If you use Homebrew: