dup2: Remove call-in from fchdir.m4.

[pspp] / m4 / ls-mntd-fs.m4

diff --git a/m4/ls-mntd-fs.m4 b/m4/ls-mntd-fs.m4
index 40b9336622a3e302055568d20ce358f63eda16ea..714d539bfe40cbd1b89be672e43f424a48d0bc3b 100644 (file)
--- a/m4/ls-mntd-fs.m4
+++ b/m4/ls-mntd-fs.m4
@@ -1,7 +1,7 @@
-# serial 28
+# serial 29
 # How to list mounted file systems.
 
-# Copyright (C) 1998-2004, 2006, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 1998-2004, 2006, 2009-2011 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -247,7 +247,11 @@ if test -z "$ac_list_mounted_fs"; then
 #if HAVE_SYS_STATVFS_H
 # include <sys/statvfs.h>
 #endif
-extern int getmntinfo (struct statfs **, int);
+extern
+#ifdef __cplusplus
+"C"
+#endif
+int getmntinfo (struct statfs **, int);
             ]], [])],
           [fu_cv_sys_mounted_getmntinfo2=no],
           [fu_cv_sys_mounted_getmntinfo2=yes])
@@ -325,6 +329,23 @@ if test -z "$ac_list_mounted_fs"; then
   fi
 fi
 
+if test -z "$ac_list_mounted_fs"; then
+  # Interix / BSD alike statvfs
+  # the code is really interix specific, so make sure, we're on it.
+  case "$host" in
+  *-interix*)
+    AC_CHECK_FUNCS([statvfs])
+    if test $ac_cv_func_statvfs = yes; then
+      ac_list_mounted_fs=found
+      AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1],
+                [Define if we are on interix, and ought to use statvfs plus
+                 some special knowledge on where mounted filesystems can be
+                 found. (Interix)])
+    fi
+    ;;
+  esac
+fi
+
 if test -z "$ac_list_mounted_fs"; then
   AC_MSG_ERROR([could not determine how to read list of mounted file systems])
   # FIXME -- no need to abort building the whole package