From 3ffcdb9c3d0e84b3c9d2fa115f3db5d6c988c66c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Fri, 16 Oct 2026 21:21:21 +0200
Subject: [PATCH] std.c: fix MINSIGSTKSZ and SIGSTKSZ constants for openbsd

---
 lib/std/c.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/std/c.zig b/lib/std/c.zig
index 0367ac6011577d51b92077a64a782158dbea4f63..3bb4378a5493308e1b68498c77c49d48429ccd01 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -9812,7 +9812,7 @@ pub const MINSIGSTKSZ = switch (native_os) {
     },
     .illumos => 2048,
     .haiku, .netbsd => 8192,
-    .openbsd => 1 << openbsd.MAX_PAGE_SHIFT,
+    .openbsd => 3 << openbsd.MAX_PAGE_SHIFT,
     // https://github.com/SerenityOS/serenity/blob/ec492a1a0819e6239ea44156825c4ee7234ca3db/Kernel/API/POSIX/signal.h#L58
     .serenity => 4096,
     else => {},
@@ -9822,7 +9822,7 @@ pub const SIGSTKSZ = switch (native_os) {
     .netbsd, .freebsd => MINSIGSTKSZ + 32768,
     .illumos => 8192,
     .haiku => 16384,
-    .openbsd => MINSIGSTKSZ + (1 << openbsd.MAX_PAGE_SHIFT) * 4,
+    .openbsd => MINSIGSTKSZ + (1 << openbsd.MAX_PAGE_SHIFT) * (if (openbsd.MAX_PAGE_SHIFT < 14) 4 else 2),
     // https://github.com/SerenityOS/serenity/blob/ec492a1a0819e6239ea44156825c4ee7234ca3db/Kernel/API/POSIX/signal.h#L59
     .serenity => 32768,
     else => {},
-- 
2.54.0