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| Makefile command lines can have one or more of the following prefixes: a hyphen ( - ), an at sign ( @ ), or a plus sign ( + ). These shall
modify the way in which make processes the command. When a command is written to standard output, the prefix shall not be included in the output.
- If the command prefix contains a hyphen, or the -i option is present, or the special target .IGNORE has either the current target as a pre-
requisite or has no prerequisites, any error found while executing the command shall be ignored.
@ If the command prefix contains an at sign and the make utility command line -n option is not specified, or the -s option is present, or the
special target .SILENT has either the current target as a prerequisite or has no prerequisites, the command shall not be written to standard
output before it is executed.
+ If the command prefix contains a plus sign, this indicates a makefile command line that shall be executed even if -n, -q, or -t is speci-
fied. |
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