From 02863c078d4e8ccd1b084d35ad141135e906a579 Mon Sep 17 00:00:00 2001
From: Xiangyan Sun <wishstudio@gmail.com>
Date: Sun, 3 May 2026 18:09:59 -0700
Subject: [PATCH] c/syscalls.c: fix gethostname() prototype

---
 c/syscalls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/c/syscalls.c b/c/syscalls.c
index fe11e81..8e4e9a4 100644
--- a/c/syscalls.c
+++ b/c/syscalls.c
@@ -669,7 +669,7 @@ s48_ref_t scm_gethostname(s48_call_t call)
 {
    char hostname[MAXHOSTNAMELEN+1];
     /* different OS's declare differently, so punt the prototype. */
-    int gethostname();
+    int gethostname(char *name, size_t size);
     int retval = gethostname(hostname, MAXHOSTNAMELEN);
     if (retval == -1) s48_os_error_2(call, "scm_gethostname", errno, 0);
     return s48_enter_byte_string_2(call, hostname);