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Permission to build and run XEphem from this source code is granted
only for personal use or for bona fide educational situations
or research funded by public funds. Permission is expressly prohibited
in commercial or military situations without prior agreement.
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XEphem source code may not be used, in whole or in part, to build other
computer programs under any circumstances without prior agreement.
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NO REPRESENTATION IS MADE ABOUT THE SUITABILITY OF THIS SOFTWARE
FOR ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED
WARRANTY.
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Redistribution rights: You may redistribute XEphem source code only
in its entirety and without modification. You may redistribute binaries
only if they were built from the original source code, or from source
code with very minor changes made for the purpose of porting and not
for the purposes of changing functionality.
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What you are about to download is not an executable program or even
the complete XEphem support system. It is a UNIX tar.gz file
containing the C source code and two sample data catalogs only,
Messier and YBS. The other catalogs, gallery collection, Lunar imagery
and the prebuilt executables are in the commercial edition only. To build a running
program you need ANSI C, X11 and Motif development libraries, a POSIX
operating system and the skills to build such programs.
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