From 40c516f941ed87116f5023885da0e4d070580907 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Sat, 16 May 2026 03:38:19 +0200
Subject: [PATCH] runner.pm: set `CURL_TESTNUM` for `precheck` commands

Closes #21640
---
 tests/runner.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/runner.pm b/tests/runner.pm
index 8ebb855ca6..115d078a1f 100644
--- a/tests/runner.pm
+++ b/tests/runner.pm
@@ -709,6 +709,9 @@ sub singletest_precheck {
                 $cmd = join(" ", @p);
             }
 
+            # provide an environment variable
+            $ENV{'CURL_TESTNUM'} = $testnum;
+
             my @o = `$cmd 2> $LOGDIR/precheck-$testnum`;
             if($o[0]) {
                 $why = $o[0];