# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1261803488 18000
# Node ID 52a248732bb611f1f04ad859b34c8230dbcf403d
# Parent  0f312e11957e0fb81182a38c3f5713f685dcc9a6
use mkfifo module from gnulib

diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -1435,7 +1435,7 @@
   getegid geteuid getgid getgrent getgrgid getgrnam getpgrp getpid \
   getppid getpwent getpwuid gettimeofday getuid getwd _kbhit kill \
   lgamma lgammaf lgamma_r lgammaf_r link localtime_r log1p log1pf lstat \
-  memmove mkfifo mkstemp on_exit pipe poll putenv raise readlink \
+  memmove mkstemp on_exit pipe poll putenv raise readlink \
   realpath rename resolvepath rindex rmdir roundl select setgrent setlocale \
   setpwent setvbuf sigaction siglongjmp sigpending sigprocmask sigsuspend \
   snprintf stat strcasecmp strdup strerror stricmp strncasecmp \
diff --git a/liboctave/file-ops.cc b/liboctave/file-ops.cc
--- a/liboctave/file-ops.cc
+++ b/liboctave/file-ops.cc
@@ -135,7 +135,10 @@
 
   int status = -1;
 
-#if defined (HAVE_MKFIFO)
+  // With gnulib we will always have mkfifo, but some systems like MinGW
+  // don't have working mkfifo functions.  On those systems, mkfifo will
+  // always return -1 and set errno.
+
   status = ::mkfifo (name.c_str (), mode);
 
   if (status < 0)
@@ -143,9 +146,6 @@
       using namespace std;
       msg = ::strerror (errno);
     }
-#else
-  msg = NOT_SUPPORTED ("mkfifo");
-#endif
 
   return status;
 }