[lug] runtime link directory specification

[D. Stimits]

On SunOS I'm able to specify a search for a library to link with (e.g.,
libSomething.so.1, via -lSomething) such that it can find the lib in a
non-linker-search location...appending to the path that the linker
normally searches for at run time, rather than being part of the system.
All I need to do is use something like "-R/home/myself/lib", and then I
can use /home/myself/lib/libSomething.so.1 from this program even
without ld having that directory in its path. E.G., -lSomething will not
cause an error during compile.

I can't seem to achieve this with the linux linker options for rpath.
(The -R of SunOS has instead --rpath on RH 7.1 it seems). My goal is to
have a program directory "bin" with a subdirectory "lib", and specify
that at runtime it search in "./lib", such that dlopen is not needed,
and the lib can be linked against with a simple -lSomething. All of my
rpath experiments are failing, it appears that I must put my lib in a
system search path and run ldconfig, or else it dies at compile time.
Does anyone have a suggestion on forcing compile to complete and looking
for the required library only at runtime via the appended rpath
location?

D. Stimits, stimits at idcomm.com