https://bugs.gentoo.org/942467
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=c0cb0175c9e6e8d6a3bdd2e40f85fa730fa325af

From c0cb0175c9e6e8d6a3bdd2e40f85fa730fa325af Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Tue, 9 Jul 2024 10:48:02 +0900
Subject: [PATCH] scd: Add <unistd.h> for read(2) / write(2) .

* scd/app.c: Include <unistd.h>.

--

Reported-by: David Bohman
GnuPG-bug-id: 7193
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 1d5cfa9b7fd22e1c46eeed5fa9fed2af6f81d34f)
--- a/scd/app.c
+++ b/scd/app.c
@@ -22,6 +22,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <npth.h>
 
 #ifndef HAVE_W32_SYSTEM
-- 
2.30.2