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3.10 Interaction with other modes

The only mode the Proc backend currently knows about is compile.

The Proc backend can be configured to not start syntax check if it thinks the compilation is in progress, by testing the compilation-in-progress variable. The reason why this might be useful is saving CPU time in case both syntax check and compilation are very CPU intensive. The original reason for adding this feature, though, was working around a locking problem with MS Visual C++ compiler. The variable in question is flymake-proc-compilation-prevents-syntax-check.

The Proc backend also provides an alternative command for starting compilation, flymake-proc-compile. It just kills all the active syntax check processes before calling compile.