Does Linux have support for LD_LIBRARY_PATH ?
Ans: Yes and No, depending on the version of libc your binary was originally compiled with. * Initially LD_LIBRARY_PATH was supported with libraries > than 4.3.3. I.e. the __load.o routine in your stub (/usr/lib/libc.sa) was replaced to cater for this. With binaries compiled using libc version less than 4.4.4, linux’s dynamic linker contains the loader as a static object in the form of __load.o which appears in the libc.sa stub and automatically gets linked into every binary you build. This means that changes to __load.o take a very long time to propagate and appear in every single binary. So to answer the question: Yes, it is supported if anything is compiled using library versions greater that 4.3.3, (libc.so.4.3.4 and above), but the upshot is that you will not notice it unless you recompile *all* your binaries. * With libc version 4.4.4 and above, the dynamic loader was in fact made dynamic and loads and unloads itself after searching and locating the required libraries. The upshot
