(jm_PREREQ_STAT): Add prerequisites and #includes for Ultrix 4.4.

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 7abcc35a3199aa806f001dc063f2661ee112db12..5b4b02c9793a061fcc0148a516668c47d6abe51b 100644 (file)
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -1,4 +1,4 @@
-#serial 31
+#serial 32
 
 dnl We use jm_ for non Autoconf macros.
 m4_pattern_forbid([^jm_[ABCDEFGHIJKLMNOPQRSTUVXYZ]])dnl
@@ -200,6 +200,10 @@ AC_DEFUN([jm_PREREQ_STAT],
   AC_CHECK_HEADERS(sys/sysmacros.h sys/statvfs.h sys/vfs.h inttypes.h)
   AC_CHECK_HEADERS(sys/param.h sys/mount.h)
   AC_CHECK_FUNCS(statvfs)
+
+  # For `struct statfs' on Ultrix 4.4.
+  AC_CHECK_HEADERS(netinet/in.h nfs/nfs_clnt.h nfs/vfs.h)
+
   AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
 
   statxfs_includes="\
@@ -210,10 +214,17 @@ $ac_includes_default
 #if HAVE_SYS_VFS_H
 # include <sys/vfs.h>
 #endif
-#if ( ! HAVE_SYS_STATVFS_H && ! HAVE_SYS_VFS_H && HAVE_SYS_MOUNT_H && HAVE_SYS_PARAM_H )
+#if !HAVE_SYS_STATVFS_H && !HAVE_SYS_VFS_H
+# if HAVE_SYS_MOUNT_H && HAVE_SYS_PARAM_H
 /* NetBSD 1.5.2 needs these, for the declaration of struct statfs. */
-# include <sys/param.h>
-# include <sys/mount.h>
+#  include <sys/param.h>
+#  include <sys/mount.h>
+# elif HAVE_NETINET_IN_H && HAVE_NFS_NFS_CLNT_H && HAVE_NFS_VFS_H
+/* Ultrix 4.4 needs these for the declaration of struct statfs.  */
+#  include <netinet/in.h>
+#  include <nfs/nfs_clnt.h>
+#  include <nfs/vfs.h>
+# endif
 #endif
 "
   AC_CHECK_MEMBERS([struct statfs.f_basetype],,,[$statxfs_includes])