Building RTEMS 4.12 for ARM using source builder fails

Chris Johns chrisj at
Wed Nov 8 20:40:09 UTC 2017

On 31/10/2017 07:45, Chris Johns wrote:
> On 31/10/2017 04:50, Joel Sherrill wrote:
>> On Oct 30, 2017 1:33 PM, "Brendan McNally" <brendan at
>> <mailto:brendan at>> wrote:
>>     Hi Chris - 
>>     Thank you! The path length was indeed the issue, and building from
>>     'E:\dev\rtems' worked as advertisied.
>>     And thank you for directing me to the user manual documentation. I had
>>     inadvertently started my journey using a different documentation set; the
>>     RTEMS Source builder docs
>>     (
>>     <>).
>> Glad you got it built.
> I am as well. It is an A+ to the MSYS2 project that we can do this.
>> Chris... Does it make sense to check for a starting path on Windows that is too
>> long? This is such an easy situation to trip across and it seems to fail in
>> mysterious ways.
> Yes this is a good idea. I am not sure how I can figure out the length we can
> build too.

For the record this is close to the deepest path that worked:


which is 45 characters including the separator and drive.


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