From 4851e60c7cd2c78d078b240694a691fcaa106bd3 Mon Sep 17 00:00:00 2001
From: Dev <9416650+aoinoikaz@users.noreply.github.com>
Date: Tue, 3 Nov 2026 16:09:32 -0500
Subject: [PATCH] lib: stub: readdir: Define readdir, not readir.

lib/stub/readdir.c named its stub readir and returned an int, so a C
library built with it, as libc is for mes_kernel=gnu and windows, had no
readdir.  Mes compiled by MesCC calls readdir for its readdir builtin
(src/mescc-posix.c), and on Windows hex2 stopped linking mes with
"Target label readdir is not valid".  The stub now has <dirent.h>'s
signature and, as before, returns a null pointer with errno 0, the end of
the directory.  GNU Mes 0.27.1 has the misspelling.

* lib/stub/readdir.c (readdir): Rename from readir.  Take a DIR * and
return a struct dirent *.  Include <dirent.h> for them rather than
<unistd.h>.
---
 lib/stub/readdir.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/stub/readdir.c b/lib/stub/readdir.c
index c00732af..bd135f29 100644
--- a/lib/stub/readdir.c
+++ b/lib/stub/readdir.c
@@ -19,11 +19,11 @@
  */
 
 #include <mes/lib.h>
+#include <dirent.h>
 #include <errno.h>
-#include <unistd.h>
 
-int
-readir (DIR *dirstream)
+struct dirent *
+readdir (DIR *dir)
 {
   static int stub = 0;
   if (__mes_debug () && !stub)