From f407ca18a4695eda5be2b251e355329854d3e4e1 Mon Sep 17 00:00:00 2001
From: Daniel Rainer <daniel.rainer@localhost>
Date: Mon, 19 Jan 2026 17:46:58 +0100
Subject: [PATCH] docs: fix doc dir computation

`FISH_CMAKE_BINARY_DIR` is the top-level CMake output directory, not its
subdirectory used as the target directory by Cargo. So far, this has not
caused issues because CMake builds explicitly call `sphinx-build` to
build the man pages, instead of using the Rust crate for embedding them.

Closes #12354
---
 crates/build-helper/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/build-helper/src/lib.rs b/crates/build-helper/src/lib.rs
index ec675d182..4c3667068 100644
--- a/crates/build-helper/src/lib.rs
+++ b/crates/build-helper/src/lib.rs
@@ -35,7 +35,7 @@ pub fn fish_build_dir() -> Cow<'static, Path> {
 }
 
 pub fn fish_doc_dir() -> Cow<'static, Path> {
-    fish_build_dir().join("fish-docs").into()
+    cargo_target_dir().join("fish-docs").into()
 }
 
 // TODO Move this to rsconf