After syntax check is finished, its status is displayed in the mode line. The following statuses are defined.
|Flymake* or Flymake:E/W*||Flymake is currently running. For the second case, E/W contains the
error and warning count for the previous run.
|Flymake||Syntax check is not running. Usually this means syntax check was
successfully passed (no errors, no warnings). Other possibilities are:
syntax check was killed as a result of executing
|Flymake:E/W||Number of errors/warnings found by the syntax check process.
|Flymake:!||Flymake was unable to find master file for the current buffer.
The following errors cause a warning message and switch flymake mode OFF for the buffer.
|CFGERR||Syntax check process returned nonzero exit code, but no
errors/warnings were reported. This indicates a possible configuration
error (for example, no suitable error message patterns for the
syntax check tool).
|NOMASTER||Flymake was unable to find master file for the current buffer.
|NOMK||Flymake was unable to find a suitable buildfile for the current buffer.
|PROCERR||Flymake was unable to launch a syntax check process.