--- ./examples/env.c.orig	2024-02-22 04:10:27.187457436 +0000
+++ ./examples/env.c	2024-02-22 04:12:24.605711880 +0000
@@ -8,7 +8,12 @@
  *          baz = foo
  *     }
  */
+
+#ifdef _AIX
+#include "errx.c"
+#else
 #include <err.h>
+#endif
 #include <confuse.h>
 #include <stdio.h>
 
--- ./examples/errx.c.orig	2024-02-22 05:05:57.604565862 +0000
+++ ./examples/errx.c	2024-02-22 05:07:10.510597056 +0000
@@ -50,3 +50,17 @@
     exit(status);
 }
 
+void
+err(int status, const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+    fputc(':', stderr);
+    fputc(' ', stderr);
+
+    exit(status);
+}
+