shouldn't dlopen() resolve library paths the same as ld.so?

[Ben Collins <bcollins at debian dot org>]

I'm having some difficulty with programs that use are using dlopen() to
open system libraries. Basically I have this setup:

/lib/libc.so.6
/lib/i686/libc.so.6

Where the i686 directory contains i686 optimized libraries (in this case,
just glibc libs). If a program is linked to libpthread, when it starts up,
ld.so loads /lib/i686/libpthread.so.0. Then later this same program calls
this:

	dlopen("libpthread.so.0", RTLD_LAZY);

which actually loads /lib/libpthread.so.0. Is this the correct behavior?
Shouldn't it resolve the path the same as ld.so does? This mainly causes
problems only because the optimized libpthread is compiled with
--enable-omitfp, so I can understand the conflict of loading both
libraries at once. I'm just concerned about two different library
resolving functionalities in this case.

Ben

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