egcs-20000424 build of libgcc2 fails with warning about trailing whitespace in include

[Tim Prince]

We seem to have a new problem with macro processing on
cygwin-1.1.0 in this week's snapshot on i686-pc-cygwin32.
libgcc2 build starts out with a bunch of these warnings and
fails to build _muldi3.  If I run ./xgcc -E with the same
options I see in the echo, I get a file which doesn't appear to
show this problem.  I notice that libgcc2 is trying to build
with -O2 even though I've tried to shut that off, although I
haven't seen an ICE in the libgcc2 build.  The patch to
gcc/config/i386/cygwin.h hasn't appeared in this snapshot.  I
went to codesourcery, but their directory has no sources or
.rpm's, as if their build failed.  Anyone want to see the
preprocessed file, possibly made some other way?