> Just to make sure, are you running the autoconf
> regeneration tool after
> you change the configure.in files?  Usually it is run
> like this:
> make -f admin/Makefile.common
> 
> If you are, check for any configure.in.in files.  If
> they exist they will
> overwrite the configure.in file contents.

I found the problems.

One was mine. I changed the test of RUBY_VERSION_MINOR == 8 to RUBY_VERSION_MINOR >= 8. The change was unnecessary and worse, in the wrong direction. Changing to <= succeeds but >= fails everything. :)

The other is the include to version.h needs to be ruby/version.h for 1.9.1.

My new patch seems to succeed with my setup, which includes 1.9. I presume the patch will still work correctly with 1.8, but somebody should test.

Patch uploaded to bug report 721 (http://bugs.pearsoncomputing.net/show_bug.cgi?id=721).

Darrell