From c2983a3f88411c1c9c20582c43054c07cbbd88b3 Mon Sep 17 00:00:00 2001
From: mlugg <mlugg@mlugg.co.uk>
Date: Sun, 23 Feb 2025 01:17:23 +0000
Subject: [PATCH] compiler: default to `.whole` cache mode for self-hosted
 backends

This is a better default cache mode until incremental compilation is
enabled by default.
---
 src/main.zig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main.zig b/src/main.zig
index 7b1bc50bd6..2e9d204420 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -3470,7 +3470,11 @@ fn buildOutputType(
         // incremental cache mode is used for LLVM backend too.
         if (create_module.resolved_options.use_llvm) break :b .whole;
 
-        break :b .incremental;
+        // Eventually, this default should be `.incremental`. However, since incremental
+        // compilation is currently an opt-in feature, it makes a strictly worse default cache mode
+        // than `.whole`.
+        // https://github.com/ziglang/zig/issues/21165
+        break :b .whole;
     };
 
     process.raiseFileDescriptorLimit();