cyrus-sasl: fix x-compile
sdl-sound: fix x-compile
tzdata: fix mkdir invocation
postgresql: fix x-compile without zic from tzcode

checking for zic... no
configure: error:
When cross-compiling, either use the option --with-system-tzdata to use
existing time-zone data, or set the environment variable ZIC to a zic
program to use during the build.
postgresql: bump to latest 9.2.x