IRIX inheriting RPATH of libraries

[Albert Chin]

Ugh! Looks like IRIX will inherit the RPATH of a library. So, say
program foo is linked against libbar2.so and libbar2.so is dependent
on libbar1.so. At build time, the runtime path of the .libs directory
containing libbar1.so will be added to the RPATH entry of libbar2.so.
Then, when program foo is created, this .libs directory is added to
the RPATH entry of program foo. Because program foo is not relinked at
install time, it keeps this RPATH entry.

Looks like we need another variable, inherit_rpath, that relinks
programs when true.

-- 
albert chin (address@hidden)