making Ruby 1.9 default

[Eric]

[SNIP]

>> Portupgrade is a bit of a problem. Perhaps it's due to my patches, but
>> at the moment I can't get databases/ruby-bdb to build with RUBY_VER ==
>> 1.9. If I could get past that, I could test the above PR. I wonder if
>> anyone else has the same issue.
>> 
> 
> It does not work with 1.9.  I submitted some pacthes to fix it, but it's
> not enough to get it build.  IIRC, there were some other problems knu@
> mentioned.

I've been having a bit of a play myself for the last couple of hours, but
without any real luck.  It does appear that getting the bdb bindings working
with Ruby 1.9 is the first major blocker to pass to get portupgrade working.

The existing /usr/ports/databases/ruby-bdb fails (at least at first) because
it can't find a 'features' library that is required in src/extconf.rb.
There is actually a 'features.rb' in the src directory, which might be what
it's after.  Hardcoding (perhaps require is getting muddled) to this file
does gets extconf.rb generating the following:

jail# ruby extconf.rb
checking for db_version() in -ldb-4.7... yes
checking for rb_frame_this_func() in ruby.h... yes
checking for rb_block_proc() in ruby.h... yes
checking for rb_io_stdio_file() in ruby.h... yes
checking for rb_block_call() in ruby.h... yes
checking for Array#insert... yes
checking for Array#values_at... yes
checking for rb_io_t in ruby.h,rubyio.h... yes
checking for DB_AFTER in db.h...no
checking for DB_AGGRESSIVE in db.h...no
checking for DB_APPEND in db.h...no
checking for DB_ARCH_ABS in db.h...no
checking for DB_ARCH_DATA in db.h...no
checking for DB_ARCH_LOG in db.h...no
checking for DB_AUTO_COMMIT in db.h...no
---etc---

Lots more "NOs", then the Makefile within 'src' is created.  Returning back
up to the top directory and trying a 'make install' (or doing it from the
work dir) still fails.

I've also been trying the gem from here: https://github.com/espace/bdb which
explicitly mentions working with Ruby 1.9.1 (fork off the original code).
Worth noting for others that this gem only looks for db-4.7, db-4.6 db-4.5,
db-4.4, db-4.3 and db-4.2.  I believe the default USE_BDB is 4.1.  The other
thing is the path to db.h is hardcoded in the ext/extconf.rb to db_header =
"/usr/local/include/db.h", so you may need to tweak that.

I've not managed to get that gem to build via the ports system or more
manually via the 'gem19 install' command.  Although with the above tweaks
taken into account 'cd'ing into
/usr/local/lib/ruby/gems/1.9/gems/bdb-0.0.2/ext and running the extconf.rb
and resultant Makefile doesn't error:

jail# make install
cc -shared -o bdb.so bdb.o -L. -L/usr/local/lib -Wl,-R/usr/local/lib -L.
-rdynamic -Wl,-soname,bdb.so  -Wl,-R -Wl,/usr/local/lib -L/usr/local/lib
-lruby19 -ldb-4.7  -lcrypt -lm -L/usr/local/lib
-rpath=/usr/lib:/usr/local/lib -pthread  -lc
/usr/bin/install -c -o root -g wheel -m 0755 bdb.so
/usr/local/lib/ruby/gems/1.9/gems/bdb-0.0.2/lib

I'm afraid I'm getting to the slightly randomly prodding stuff stage - I'm
not a big C person (*the shame* - I know)

Sorry not much of use I know, anyone a bit more knowledgeable got some
ideas?

Regards

Eric