Circa 2001-Nov-13 22:11:48 -0800 dixit Gary Ferrer:
: No I haven't. ldconfig doesn't exist on Solaris nor does ld.so.conf
: (I think that's a linux thing). I don't know what the equivalent is
: for Solaris. I'm having difficulty getting my head around how the
: Solaris ld libraries work but I'm working on it.
Solaris doesn't really have an equivalent to ldconfig or /etc/ld.so.conf.
There are two ways for a program to find its dynamic libraries under
Solaris (and similar OSes):
(1) The Easy Way: Set the 'LD_RUN_PATH' environment variable to the
colon-separated list of directories in which the runtime linker
should look for shared libraries. This isn't really so easy:
(a) Different binaries often need different (sometimes even
conflicting) LD_RUN_PATHs.
(b) LD_RUN_PATH doesn't (or at least shouldn't) work for setuid
binaries.
(2) The Right Way(TM): When linking the program, use the '-R <path>'
switch to specify each directory in which the runtime linker
should look for shared libraries. If done right, this actually
turns out to be easier than The Easy Way, if you have control of
the linking stage of the binary, for several reasons:
(a) Since it's specific to each binary, using -R at linktime
doesn't create conflicts for other binaries or create a
system administration nightmare.
(b) According to the ld(1) man page, -R supersedes LD_RUN_PATH,
so if it was specified at all by whoever linked the binary,
then LD_RUN_PATH won't work.
(c) Works for setuid binaries in addition to the less
aristocratic variety.
If you're building software for a single system, your "runpath" can
probably be the same as your library path; that is, use the same paths
with -R as you do with -L at linktime.
If you're building software for use on more than one system, and
especially if you're building it for use by someone other than
yourself, you should pick the runpath rather carefully. For many
binaries, this is a sufficient runpath:
-R /usr/local/lib -R /usr/lib -R /lib
For newer Solarises (Solares?), this might be better:
-R /space/local/lib -R /opt/lib -R /usr/lib -R /lib
Software that requires CDE or BrokenWindows gets a bit more complicated.
Good luck.
--
jim knoble | jmknoble@??? |
http://www.pobox.com/~jmknoble/
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