Qt doesn't see fontconfig related fonts

[alexein1983]

Hello,

My platform:
Qt 5.4.1 over Embedded Linux X11 (built using Yocto)
fontconfig v 2.11.1

My problem:
Qt doesn't see fonts from fontconfig, populated using fc-cache and seen by fc-list.
Qt always fallbacksto /usr/lib/fonts for fonts files.

Thanks for any help.