From 399454fb89031285dd4c5cae3e0092e5f8003c91 Mon Sep 17 00:00:00 2001
From: "Eliyaan (Nopana)" <103932369+Eliyaan@users.noreply.github.com>
Date: Fri, 30 May 2025 04:40:29 +0200
Subject: [PATCH] builtin: flush stdout on panic (#24606)

---
 vlib/builtin/builtin.c.v | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vlib/builtin/builtin.c.v b/vlib/builtin/builtin.c.v
index 6affed9d04..8c894db269 100644
--- a/vlib/builtin/builtin.c.v
+++ b/vlib/builtin/builtin.c.v
@@ -73,6 +73,7 @@ fn panic_debug(line_no int, file string, mod string, fn_name string, s string) {
 		eprint('   v hash: '); eprintln(vcurrent_hash())
 		eprintln('=========================================')
 		// vfmt on
+		flush_stdout()
 		$if native {
 			C.exit(1) // TODO: native backtraces
 		} $else $if exit_after_panic_message ? {
@@ -132,6 +133,7 @@ pub fn panic(s string) {
 		eprintln(s)
 		eprint('v hash: ')
 		eprintln(vcurrent_hash())
+		flush_stdout()
 		$if native {
 			C.exit(1) // TODO: native backtraces
 		} $else $if exit_after_panic_message ? {