GH-38847: [Documentation][C++] Explicitly note that compute is option…

…al (#43629) ### Rationale for this change A user didn't know from reading just the compute documentation that compute is an optional feature. We can make that explicit ### What changes are included in this PR? Added a cross-reference to the optional features section ### Are these changes tested? No ### Are there any user-facing changes? No * GitHub Issue: #38847 Authored-by: Benjamin Kietzman <[email protected]> Signed-off-by: Benjamin Kietzman <[email protected]>
apache · Aug 19, 2024 · 9d4dcc9 · 9d4dcc9
1 parent a380d69
commit 9d4dcc9
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/docs/source/cpp/tutorials/compute_tutorial.rst b/docs/source/cpp/tutorials/compute_tutorial.rst
@@ -39,7 +39,9 @@ Pre-requisites
 
 Before continuing, make sure you have:
 
-1. An Arrow installation, which you can set up here: :doc:`/cpp/build_system`
+1. An Arrow installation, which you can set up here: :doc:`/cpp/build_system`.
+   If you're compiling Arrow yourself, be sure you compile with the compute module
+   enabled (i.e., ``-DARROW_COMPUTE=ON``), see :ref:`cpp_build_optional_components`.
 
 2. An understanding of basic Arrow data structures from :doc:`/cpp/tutorials/basic_arrow`
 
@@ -50,7 +52,7 @@ Before running some computations, we need to fill in a couple gaps:
 
 1. We need to include necessary headers.
 
-2. ``A main()`` is needed to glue things together.
+2. A ``main()`` is needed to glue things together.
 
 3. We need data to play with.