After further research I'm thinking about dropping the libunwind
support. The backtrace()/backtrace_symbols() API is more widely
available: darwin, freebsd, linux, netbsd, openbsd (via port), solaris,
and of course it's built-in, whereas libunwind is only available for
linux, freebsd, hpux, solaris, and requires an external dependency.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services