Bug 143148 - "make allheaders.hxx" not working

[Marc <timepilot3000@xxxxxxxxx>]

Hi,

I'm contributing to

Bug 143148 - Use pragma once instead of include guards

https://bugs.documentfoundation.org/show_bug.cgi?id=14314

When I try to generate the list of headers to leave alone, using the command from the first comment:

make CustomTarget_odk/allheaders

I get the error:

make[1]: *** No rule to make target 'CustomTarget_odk/allheaders'.  Stop.
make: *** [Makefile:175: CustomTarget_odk/allheaders] Error 2

I'm using Cygwin on Windows.

Any guidance on what I'm doing wrong or how to troubleshoot?

Thanks,

Marc