darcs patch: #262 iterative tests for foreign dependencies

Fri Jan 30 14:02:28 EET 2009 Gleb Alexeyev <gleb.alexeev@gmail.com> * #262 iterative tests for foreign dependencies Optimize for succesful case. First try all libs and includes in one command, proceed with further tests only if the first test fails. The same goes for libs and headers: look for an offending one only when overall test fails.