Lots of packages in Sage make use of a program called 'install'. If you
build Sage on Solaris, you might well have noticed warnings about
'install' not supporting a specific option.

There are a few issues with 'install'

  * On Solaris, the only one is in /usr/sbin, which is where normally
only root has their path set to. There is no 'install' file in the
normal directories used by a user. (I must admit, I keep /usr/sbin in my
path, even when logged is a normal user).

  * On Solaris, the 'install' program is not the GNU one, and appears to
ignore an option which might be significant. I can't say I am aware of
it being so, but I don't know. It

  * On HP-UX there is no such command.

So it seems we need to have an installer. I thought this was a simple
shell script, but checking on sage.math I see it is a binary. But if I 
recall correct, there was one strange package which had about 8 copies 
of 'install' in various different directories.

I realise this is in /usr/bin on Linux, but it is not on other operating 
systems.


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