I'm trying to crossl-compile the IIO tools from the Linux kernel repository for a Raspberry Pi on a x64 Lubuntu machine, compiling the whole Raspbian kernel worked fine though.
First I tested it on the x64 machine:
~/linux/tools$ make iio
Which worked fine. Next step adding some cross-compiler arguments:
~/linux/tools$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- iio
Now he can't find the file included in iio_event_monitor.c anymore. What I'm missing here?