- support aligned or non aligned data depending of the arch
- Define PPRZLINK_UNALIGNED_ACCESS to TRUE if the target CPU/MMU allows unaligned access.
This is true for x86/64 and most recent ARM platforms (ARMv7, Cortex-A, Cortex-M3/4).
Examples for targets WITHOUT unaligned access support: LPC21xx, Cortex-M0
- will help air-to-air communications (#1509)
- possible to explicitly pass a PREFIX to use other toolchain
default for PREFIX is arm-none-eabi or arm-linux-gnueabi
- print meaninfull error if arm-linux toolchain is not found
- printcommands prints only CC and GCC version
- remove obsolete find OpenOCD stuff