Re: depcomp problem [Fwd: Trying to compile latest CVS on old SC Ounixware 2]

[Tom Tromey]

>>>>> "Steve" == Cameron, Steve <address@hidden> writes:

Steve> The little "compile" script complains that there is no "-o" option.
Steve> (If there were a -o option, the SCO compiler would complain, so this
Steve> is probably intentional.)

Steve> I've gone over this on the address@hidden, but it seems to be
Steve> an automake problem and Derek Price, one of the CVS
Steve> maintainers, suggested I try here.  Previously there was some
Steve> discussion here on address@hidden about this problem which
Steve> resulted in the suggestion to add AM_PROG_CC_C_O to into
Steve> configure.in, which appears to have been done, but resulted in
Steve> the above.

I looked into this tonight.  I couldn't reproduce your failure, but
I'm definitely seeing weird things happen.  I'll be checking in a test
case soon.  This means the problem will be fixed before the next
release.

In particular I noticed:

- We get different results if we run AM_PROG_CC_C_O before AC_PROG_CC.
  Maybe this one is just an autoconf (2.13) bug.  Why doesn't
  AC_PROG_CC_C_O require AC_PROG_CC?

- AM_PROG_CC_C_O changes `CC'.  This is bad enough, but it also
  changes it like this:

       CC="\$(top_srcdir)/compile $CC"

  This means if your configure script tries to use $CC after
  AM_PROG_CC_C_O then it will fail.  Oops!

- In my case, a lock directory with the name of the expected object is
  left lying around.

I think all these are fixable (though the second one perhaps hackily).

Tom