From 056053a6a9c5d780be96ae4865d01fed5700f90c Mon Sep 17 00:00:00 2001
From: Ryan Schmidt <ryandesign@macports.org>
Date: Wed, 18 May 2022 05:53:08 -0500
Subject: [PATCH] src/tk/tkconfig.h: Micropolis build fixes for recent macOS

Fix:
tkoption.c:875:9: error: implicit declaration of function 'read' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if (read(fileId, buffer, (int) statBuf.st_size) != statBuf.st_size) {
        ^
---
 src/tk/tkconfig.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tk/tkconfig.h b/src/tk/tkconfig.h
index d8e27a2..ca64595 100644
--- a/src/tk/tkconfig.h
+++ b/src/tk/tkconfig.h
@@ -45,6 +45,7 @@
 #include <sys/file.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <unistd.h>
 #ifndef _TCL
 #   include <tcl.h>
 #endif
-- 
2.39.5