Re: rfc: new libgcc build mechanism

[pausmith at nortelnetworks dot com (Paul D. Smith)]

%% Phil Edwards <pedwards@jaj.com> writes:

  >> I haven't looked closely at this, but I will note right off that this:

  dt> "CC=$$(echo $$(case '$(CC)' in (stage*) echo '$(CC)' | sed -e

  >> is very non-portable.

  pe> I have looked at this even less closely than you; perhaps I have
  pe> missed something.  If you are constructing the makefile via
  pe> autoconf, why not detect a shell that will do such expansions and
  pe> set SHELL in the output makefile accordingly?

If you can find one, that's fine.  First you are assuming that every
platform you want to build GCC on _will_ have such a shell.  Since ksh
isn't free, and certainly not every UNIX includes bash, some versions of
UNIX might not have one anywhere (is this the same thread 

  pe> Also, just FYI, the default make on Solaris (from the development
  pe> tools package, sitting in /usr/ccs/bin) is the same make as the
  pe> POSIX-complaint make, so it would pay attention to the SHELL
  pe> setting:

Sure, that's not the problem.  I've never heard of _ANY_ make that
didn't obey the SHELL variable.