Sometimes it is not desirable to run an specific test in an specific source file. Some typical situations are:
In order to disable the execution of a syntax check in an specific file, the name of the source file should be added to the file .x-RULE, where RULE is the name of the syntax check. An example is the file .x-sc_avoid_if_before_free, that affects the syntax check implemented in build-aux/sc_avoid_if_before_free.
Note that the .x-RULE files should not contain empty lines.
In order to disable the execution of a syntax check for any file, just
add the name of the syntax check to the local-checks-to-skip
variable in cfg.mk.