abuild is a great tool to check whether your coreboot tree compiles for one or all targets.
If you invoke abuild with no parameters, it will build all boards automatically. The resulting images and logs will end up in the util/abuild/coreboot-builds/ directory.
For example, to build the Thomson IP1000 target, run:
$ util/abuild/abuild -t thomson/ip1000
The build log will be in util/abuild/coreboot-builds/thomson_ip1000/make.log.
You can also specify a payload directory with -p:
$ mkdir payloads $ cp /somewhere/filo.elf payloads
Then add a file payloads/payload.sh which prints the name of the payload to use (and takes the mainboard as a parameter) such as:
$ echo "`dirname $0`/build/filo.elf"
Then you can build a fully working image with payload by specifying:
$ util/abuild/abuild -t thomson/ip1000 -p ./payloads
You can specify -c max (e.g. -c 2) if you have an SMP system, to speed up compilation.