NEWS.stable: log cherry-pick [e446f25]->[c092018] relocatable-shell: Update suggested...

[gnulib.git] / m4 / ls-mntd-fs.m4

diff --git a/m4/ls-mntd-fs.m4 b/m4/ls-mntd-fs.m4
index 40b9336..a5e169b 100644 (file)
--- a/m4/ls-mntd-fs.m4
+++ b/m4/ls-mntd-fs.m4
@@ -1,7 +1,7 @@
-# serial 28
+# serial 30
 # How to list mounted file systems.
 
-# Copyright (C) 1998-2004, 2006, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 1998-2004, 2006, 2009-2014 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -70,7 +70,7 @@ AC_FUNC_GETMNTENT
 # with other getmntent implementations.
 
 # NOTE: Normally, I wouldn't use a check for system type as I've done for
-# `CRAY' below since that goes against the whole autoconf philosophy.  But
+# 'CRAY' below since that goes against the whole autoconf philosophy.  But
 # I think there is too great a chance that some non-Cray system has a
 # function named listmntent to risk the false positive.
 
@@ -110,7 +110,7 @@ if test -z "$ac_list_mounted_fs"; then
     AC_DEFINE([MOUNTED_VMOUNT], [1],
         [Define if there is a function named mntctl that can be used to read
          the list of mounted file systems, and there is a system header file
-         that declares `struct vmount.'  (AIX)])
+         that declares 'struct vmount'.  (AIX)])
   fi
 fi
 
@@ -247,7 +247,11 @@ if test -z "$ac_list_mounted_fs"; then
 #if HAVE_SYS_STATVFS_H
 # include <sys/statvfs.h>
 #endif
-extern int getmntinfo (struct statfs **, int);
+extern
+#ifdef __cplusplus
+"C"
+#endif
+int getmntinfo (struct statfs **, int);
             ]], [])],
           [fu_cv_sys_mounted_getmntinfo2=no],
           [fu_cv_sys_mounted_getmntinfo2=yes])
@@ -326,6 +330,23 @@ if test -z "$ac_list_mounted_fs"; then
 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 $ac_cv_func_statvfs = yes; then
+      ac_list_mounted_fs=found
+      AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1],
+                [Define if we are on interix, and ought to use statvfs plus
+                 some special knowledge on where mounted file systems can be
+                 found. (Interix)])
+    fi
+    ;;
+  esac
+fi
+
+if test -z "$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
   # Can't build mountlist.c or anything that needs its functions