cmake: Find libubox/utils.h header file
authorFlorian Fainelli <f.fainelli@gmail.com>
Fri, 1 Jul 2016 23:04:05 +0000 (16:04 -0700)
committerFelix Fietkau <nbd@nbd.name>
Sat, 2 Jul 2016 14:52:31 +0000 (16:52 +0200)
Add a CMake FIND_PATH and INCLUDE_DIRECTORIES searching for
libubox/utils.h.  Some external toolchains which do not include standard
locations would fail to find the header otherwise.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

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