FreeTDS Development Group

[Steve Langasek <vorlon AT netexpress.net>]

On Wed, Jun 12, 2002 at 02:05:20AM -0400, James K. Lowden wrote:
> http://www.freetds.org/userguide/x200.htm#AEN210 

> Two questions about this ldconfig stuff, if I may, for someone who knows
> better.

> 1)    The UG says "On OS's with shared libraries (Linux usually), pay
> attention to ldconfig".  Bolderdash, right?  Shouldn't that be, "On
> systems still using the laughably decrepit a.out format for their
> binaries"?  Is there better more precise technical terminology?  

ldconfig is used on Linux systems to generate /etc/ld.so.cache, which
provides an efficient hash lookup of libraries by soname without having
to stat each file within /usr/lib/.  In addition, it aids in the
integration of alternate library search paths at the system level
(/etc/ld.so.conf).  The net result is that on Linux, 'rpath' is
unnecessary, but running 'ldconfig' every time a library is installed is
necessary.

This does not hold true for all Linux distros, AIUI (just as it
certainly is not true for all ELF-using platforms): I believe Slackware
does not use ldconfig.

Steve Langasek
postmodern programmer

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