From 98645974f47b29559a8b0bdb0ed9cd8cbe0acf2e Mon Sep 17 00:00:00 2001
From: Aaditya Srinivasan <aadityasri03@gmail.com>
Date: Wed, 22 Jul 2026 06:53:56 +0530
Subject: [PATCH] Use bundled simdjson by default

---
 r/tools/nixlibs.R | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/r/tools/nixlibs.R b/r/tools/nixlibs.R
index 3c184f6fe23..7c83d08c38c 100644
--- a/r/tools/nixlibs.R
+++ b/r/tools/nixlibs.R
@@ -589,6 +589,10 @@ build_libarrow <- function(src_dir, dst_dir) {
     env_var_list <- c(env_var_list, ARROW_DEPENDENCY_SOURCE = "BUNDLED")
   }
 
+  if (Sys.getenv("simdjson_SOURCE") == "") {
+    env_var_list <- c(env_var_list, simdjson_SOURCE = "BUNDLED")
+  }
+
   # On macOS, if not otherwise set, let's override Boost_SOURCE to be bundled
   # Necessary due to #39590 for CRAN
   if (on_macos) {