Use build dir; add to docs

.gitignore

@@ -4,5 +4,4 @@ docs/_build/
 dist/
 target/
 venv/
-llvm/
 __pycache__/

docs/running.rst

@@ -151,11 +151,17 @@ Common configurations include:
    A debug build. No optimizations.
 
 The archive flavor denotes the content in the archive. See
-:ref:`distributions` for more. Casual users will likely want to use the
-``install_only`` archive, as most users do not need the build artifacts
-present in the ``full`` archive. The ``install_only`` archive doesn't
-include the build configuration in its file name. It's based on the fastest
-available build configuration for a given target.
+:ref:`distributions` for more.
+
+Casual users will likely want to use the ``install_only`` archive, as most
+users do not need the build artifacts present in the ``full`` archive.
+The ``install_only`` archive doesn't include the build configuration in its
+file name. It's based on the fastest available build configuration for a given
+target.
+
+An ``install_only_stripped`` archive is also available. This archive is
+equivalent to ``install_only``, but without debug symbols, which results in a
+smaller download and on-disk footprint.
 
 Extracting Distributions
 ========================

src/release.rs

@@ -472,7 +472,7 @@ pub async fn bootstrap_llvm() -> Result<PathBuf> {
     let url = &*LLVM_URL;
     let filename = url.path_segments().unwrap().last().unwrap();
 
-    let llvm_dir = PathBuf::from("llvm");
+    let llvm_dir = Path::new("build").join("llvm");
 
     // If `llvm` is already available with the target version, return it.
     if llvm_dir.join(filename).exists() {