Compilation on Solaris/SmartOS

[Jonathan del Strother <maillist@steelskies.com>]

Hi,
I was having trouble using Raindrops on our i386 SmartOS servers.  The gem
would compile fine, but bomb out at runtime :

ruby -rraindrops -e "Raindrops.new(1).incr(0)"
ld.so.1: ruby: fatal: relocation error: file
/..../gems/raindrops-0.10.0/lib/raindrops_ext.so: symbol
__sync_add_and_fetch_4: referenced symbol not found

I was able to fix this with march=native - I added something like this to
extconf.rb -

if CONFIG["arch"]=~/solaris/
  $CPPFLAGS += " -march=native"
end

I'm not familiar enough with building the atomic libs to say whether it's
definitely the correct fix, but it seems to work, and the ruby-atomic gem
needed something similar :
https://github.com/headius/ruby-atomic/blob/master/ext/extconf.rb.   Any
thoughts?