From 7f5d765c929a4dc2deddb7b68a41a3a841940837 Mon Sep 17 00:00:00 2001
From: Mel <mel@rnrd.eu>
Date: Thu, 22 Jan 2026 03:55:02 +0100
Subject: LLVM clang compiler backend

Signed-off-by: Mel <mel@rnrd.eu>
---
 boot/runtime/core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'boot/runtime/core.c')

diff --git a/boot/runtime/core.c b/boot/runtime/core.c
index c911666..f6c4ef8 100644
--- a/boot/runtime/core.c
+++ b/boot/runtime/core.c
@@ -4,13 +4,16 @@
  * used during bootstrapping, while the full
  * catskill standard library is not yet available.
  *
- * copyright (c) 2025, mel g. <mel@rnrd.eu>
+ * Copyright (c) 2025-2026, Mel G. <mel@rnrd.eu>
  *
- * spdx-license-identifier: mpl-2.0
+ * SPDX-License-Identifier: MPL-2.0
  */
 
 #pragma once
 
+// enable some posix-only functions, like `fileno`.
+#define _POSIX_C_SOURCE 200809L
+
 // common headers for both your average catskill program.
 // other libc headers can be included with the pragma
 // `| c-header "header.h"`.
-- 
cgit 1.4.1