From 32514265eae23c9196b09477c63ab26850ecbe6a Mon Sep 17 00:00:00 2001
From: tjg <tjg>
Date: Wed, 13 Oct 1999 15:37:34 +0000
Subject:   Portability: use POSIX strerror() where it's available; fake it
 with   sys_errlist[] where not.

---
 proto.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'proto.h')

diff --git a/proto.h b/proto.h
index 0f24fb5..7d2fe2a 100644
--- a/proto.h
+++ b/proto.h
@@ -59,6 +59,15 @@ extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
 
 #endif /* STDC_HEADERS */
 
+#if HAVE_STRERROR
+/* Smells like POSIX. */
+#else
+/* Assume BSD-style sys_errlist[]. */
+extern int sys_nerr;
+extern char *sys_errlist[];
+#define strerror(x) ((0 <= (x)) && (errno < (x)) ? sys_errlist[x] : (char *)0)
+#endif
+
 #if HAVE_UNISTD_H
 #include <unistd.h>
 #endif
-- 
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