rsync to copy files?

[Bob Friesenhahn]

A package I am working with needs to install many large files.  In the 
course of package development it is necessary to execute 'make 
install' many times.  These large files never change.

I have learned that using 'rsync' to copy files improves the install 
time quite dramatically for repeat installs.  Even for files that 
change sometimes (executables, libraries, formatted documentation), it 
is quite common for subsequent installs to copy identical files since 
the files are already built/generated.

Perhaps automake might consider checking for 'rsync' and making use of 
it if it is available (and works)?

Bob
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Bob Friesenhahn
address@hidden
http://www.simplesystems.org/users/bfriesen