AT_HWCAP is treated differently on i386:
AT_HWCAP: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
as shown by LD_SHOW_AUXV. On i386, only sse2 is used for shared library search
path. On x86-64, nothing additional directory is searched for shared library.
We can use _dl_x86_cpu_features to replace AT_HWCAP and enable additional
directories for loading shared libraries.
*** This bug has been marked as a duplicate of bug 21391 ***