We need to link against libm as we get linker errors otherwise:
<sysroot>/usr/lib/libjson-c.so.2: undefined reference to `__isnan'
<sysroot>/usr/lib/libjson-c.so.2: undefined reference to `__isinf'
collect2: error: ld returned 1 exit status
Backport the upstream patch.
(From OE-Core rev: 964456b0a2b9404ea54d6905a418ecf52b522bca)
Signed-off-by: André Draszik <adraszik@tycoint.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>