Compilation issue

[shayo]

@rgrover , I'm trying to revive this project and I'm having trouble compiling it.
which mbed version was used to compile it, and where can I find it?

I've tried the following:

1. SDK 8
2. https://developer.mbed.org/users/mbed_official/code/mbed-src/ for mbed (revision 635 a11c0372f0ba)
3. gcc-arm-none-eabi-6_2-2016q4

I'm getting huge number of compilation errors, first one being
In file included from /Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/examples/dfu/nrf5x-dfu-bootloader-master/mbed/targets/cmsis/core_cm0.h:127:0,
from /Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/examples/dfu/nrf5x-dfu-bootloader-master/mbed/targets/cmsis/TARGET_NORDIC/TARGET_MCU_NRF51822/nrf51.h:119,
from /Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/components/libraries/bootloader_dfu/dfu_types.h:27,
from /Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/components/libraries/bootloader_dfu/bootloader.h:27,
from /Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/examples/dfu/nrf5x-dfu-bootloader-master/main.c:31:
/Users/shayo/sdk/nRF51_SDK_8.0.0_5fc2c3a/examples/dfu/nrf5x-dfu-bootloader-master/mbed/targets/cmsis/core_cmInstr.h:52:4: error: #error "Please use ARM Compiler Toolchain V4.0.677 or later!"
#error "Please use ARM Compiler Toolchain V4.0.677 or later!"

which doesn't make sense since I'm using a much newer toolchain....