Chapter 8. The pkg-* Files

Table of Contents
8.1. pkg-message
8.2. pkg-install
8.3. pkg-deinstall
8.4. Changing the Names of pkg-* Files
8.5. Making Use of SUB_FILES and SUB_LIST

There are some tricks we have not mentioned yet about the pkg-* files that come in handy sometimes.

8.1. pkg-message

If you need to display a message to the installer, you may place the message in pkg-message. This capability is often useful to display additional installation steps to be taken after a pkg install or to display licensing information.

When some lines about the build-time knobs or warnings have to be displayed, use ECHO_MSG. The pkg-message file is only for post-installation steps. Likewise, the distinction between ECHO_MSG and ECHO_CMD should be kept in mind. The former is for printing informational text to the screen, while the latter is for command pipelining:

	@${ECHO_MSG} "updating /etc/shells"
	@${CP} /etc/shells /etc/shells.bak
	@( ${GREP} -v ${PREFIX}/bin/bash /etc/shells.bak; \
		${ECHO_CMD} ${PREFIX}/bin/bash) >/etc/shells
	@${RM} /etc/shells.bak


The pkg-message file does not need to be added to pkg-plist.

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