$OpenBSD: patch-src_minibuf_c,v 1.1.1.1 2011/03/28 15:18:56 jasper Exp $

'emacs --batch -f byte-compile-file' fails after inactivity timer
fires up. the solution is to restart fgets upon receiving EINTR.
afaik, read_minibuf_noninteractive is called only in the batch
mode

--- src/minibuf.c.orig	Sat Jan  8 18:45:14 2011
+++ src/minibuf.c	Wed Mar 23 20:56:39 2011
@@ -20,6 +20,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org
 
 
 #include <config.h>
+#include <errno.h>
 #include <stdio.h>
 #include <setjmp.h>
 
@@ -306,12 +307,21 @@ read_minibuf_noninteractive (map, initial, prompt, bac
   size = 100;
   len = 0;
   line = (char *) xmalloc (size * sizeof *line);
-  while ((s = fgets (line + len, size - len, stdin)) != NULL
-	 && (len = strlen (line),
-	     len == size - 1 && line[len - 1] != '\n'))
+
+again:
+  if ((s = fgets (line + len, size - len, stdin)) != NULL)
     {
-      size *= 2;
-      line = (char *) xrealloc (line, size);
+      len = strlen (line);
+      if (len > 0 && line[len - 1] != '\n')
+	{
+	  size *= 2;
+	  line = (char *) xrealloc (line, size);
+	  goto again;
+	}
+    }
+  else if (errno == EINTR)
+    {
+      goto again;
     }
 
   if (s)