If the "build_only" variable is set in the configuration file, the
FATE client will skip running tests and just compile all targets.
Signed-off-by: Martin Storsjö <martin@martin.st>
TARGET_EXEC allows running FATE on simulators, remote targets and
memory checkers. Also document a known issue with Wine and mixed
Unix/Windows line ending.
FATE_SAMPLES is now used directly by the Makefiles, which induces the test
system to run a test with the value of the environment variable as name.
Renaming the environment variable to LIBAV_SAMPLES avoids this problem.
