Which automake version to use with RTEMS?

[Jiri Gaisler]

Building RSB installs automake-1.12.6, but RTEMS Makefile.am files seem
to need (exactly) automake-1.13. On top of that, many linux systems have
1.15 installed by default. Is there a reason why RSB installs 1.12.6 and
not 1.13? And why can't we use 1.15?

Sorry if this is a dumb question, but I am trying to bring up a new bsp
and have problems with generating the proper Makefiles ...

Jiri.