sem_timedwait() called from 32 bit shared library does not wake (blocks forever) in RHEL7

Issue

• Executable and shared library(ies) linked to different versions of a symbol.
• Underlinked object linked to unversioned symbol(s).
• Properly linked object linked to the correct (versioned) symbols.
• Normally the problem happens with libpthread symbols, but might also happen with librt symbols.
• Commonly happen with a dlopen()'end library.