Installation guide

part of an obsolete draft standard and is supported in this release for
compatibility only. When possible, existing applications that use
_POSIX_4SOURCE should be modified to use _POSIX_C_SOURCE instead.
The _POSIX_C_SOURCE macro is associated with a value, which allows an
application to specify the namespace it requires. However, as a general
rule, avoid explicitly defining standards macros when compiling your
applications. For most applications, the header file unistd.h provides the
standards definitions that are needed.
G.8.11.1 ULTRIX Migration Issues
There are no ULTRIX migration issues.
G.8.12 DIGITAL Porting Assistant
The DIGITAL Porting Assistant is a Motif-based tool to help you port your
C, C++, and Fortran source code to DIGITAL UNIX from other UNIX and
proprietary platforms, including OpenVMS. The Porting Assistant includes
the following features:
• Uncovers 32-bit dependencies
• Checks your makefile commands and options
• Helps find functions that your application needs
• Helps develop code segments specific to DIGITAL UNIX
• Provides additional information on porting your application
The Porting Assistant is licensed and provided to you with the DIGITAL
UNIX Developers’ Toolkit but requires separate installation.
To install Version 2.0 of the Porting Assistant, install subsets PRTBASE200
and PRTMAN200 (and their dependencies) from the DIGITAL UNIX
Associated Products Volume 1 CD-ROM.
G.8.12.1 ULTRIX Migration Issues
There are no ULTRIX migration issues.
G.9 Networking
The following sections describe networking enhancements contained in
DIGITAL UNIX Version 4.0B.
G.9.1 New Version of the gated Daemon
This release includes a new version of the gated routing daemon. The
update installation procedure will detect if your system is configured to run
G–16 Migration from ULTRIX Version 4.5 to DIGITAL UNIX Version 4.0B