Can I specify where g++looks for libs at runtime?

[Dr. David Kirkby]

Joern Rennecke wrote:
>> kirkby@t2:[~] $ ./a.out
>> ld.so.1: a.out: fatal: libstdc++.so.6: open failed: No such file or 
>> directory
>> Killed
>>
>> I'm using the Sun linker, not the GNU one, so it's possible g++ is 
>> sending stuff to the linker to indicate where the libraries are, but 
>> the linker is ignoring them.
>>
>> Ideally I'd like to send something to the Sun linker to day "look in 
>> /usr/local/gcc-4.4.0-sun-linker/lib for libraries too"
>>
>> If I set LD_LIBRARY_PATH, then this will work.
> 
> If you set LD_RUN_PATH before the compilation (more specifically, the
> compile-time linking) of your program, the path from LD_RUN_PATH will
> be recorded in your executable.
> 
> Recording the location of the shared libraries where they were found
> during compile-time linking is not done by default because that will not
> work well when you copy your executable to another machine with a different
> filesystem layout, or if a newer version of the shared library is added in
> a different place.
> 

Thank you. I'm just surprised I need to do this with the compiler I 
installed, as it's necessary with other compilers on the system. I've 
certainly installed binary versions of gcc (from for example Sunfreeware 
or Blastwave) which have not needed this done before.