From a40068e04254d14c5215d80e010f00d842e60b06 Mon Sep 17 00:00:00 2001
From: Stefan Frijters <sfrijters@gmail.com>
Date: Fri, 1 May 2026 16:12:11 +0200
Subject: [PATCH 1/2] writeTextFile: use printf instead of echo

This is safer in the case of large strings since it doesn't trigger
"Argument list too long" errors.
---
 pkgs/build-support/trivial-builders/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/trivial-builders/default.nix b/pkgs/build-support/trivial-builders/default.nix
index 10ad4ab187e3..04e284ca9652 100644
--- a/pkgs/build-support/trivial-builders/default.nix
+++ b/pkgs/build-support/trivial-builders/default.nix
@@ -146,7 +146,7 @@ rec {
           if [ -e "$textPath" ]; then
             mv "$textPath" "$target"
           else
-            echo -n "$text" > "$target"
+            printf "%s" "$text" > "$target"
           fi
 
           if [ -n "$executable" ]; then

From 3f8bb455ddccf5acb6975d3e4598b8afe954fe89 Mon Sep 17 00:00:00 2001
From: Stefan Frijters <sfrijters@gmail.com>
Date: Mon, 23 Mar 2026 14:20:51 +0100
Subject: [PATCH 2/2] writeCBin: use structuredAttrs instead of passAsFile

---
 pkgs/build-support/trivial-builders/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/build-support/trivial-builders/default.nix b/pkgs/build-support/trivial-builders/default.nix
index 04e284ca9652..e275aa1982a2 100644
--- a/pkgs/build-support/trivial-builders/default.nix
+++ b/pkgs/build-support/trivial-builders/default.nix
@@ -347,10 +347,10 @@ rec {
       {
         inherit pname code;
         executable = true;
-        passAsFile = [ "code" ];
         # Pointless to do this on a remote machine.
         preferLocalBuild = true;
         allowSubstitutes = false;
+        __structuredAttrs = true;
         meta = {
           mainProgram = pname;
         };
@@ -358,7 +358,7 @@ rec {
       ''
         n=$out/bin/${pname}
         mkdir -p "$(dirname "$n")"
-        mv "$codePath" code.c
+        printf "%s" "$code" > code.c
         $CC -x c code.c -o "$n"
       '';