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Changes between Version 18 and Version 19 of RpmHowToPackagers

v18	v19
142	142	in the %install section when you copy files from BUILD to BUILDROOT for getting packed by rpmbuild; the naked cp command will kill the original timestamp (the <dst> file will get the current time). The -p flag causes cp to preserve timestamps and the -d flag preserves symlinks (just in case a file you copy is a LIBC symlink). Another cp flag you may find useful is -R which causes it to copy directories recursively.
143	143
	144	Note that it doesn't make much sense to use cp -dp in packages which you build from sources, since the original timestamp in this case is the build time which won't differ too much from the install time (as the %install stage happens right after the %build stage).
	145
144	146	=== CONFIG.SYS changes ===
145	147	It is sometimes necessary to modify the CONFIG.SYS file during installation, even when using RPM. One of the examples is when your package installs a device driver that needs to be loaded at boot time or when a global environment variable needs to be set. This can be done from the {{{%post}}} section using the special macro {{{%cube}}} which is based on the CUBE tool.