You have just built, installed and used the most common commands of the GNU ID utilities. If you ever need help remembering which system header files contain a particular declaration, or reference a particular symbol, you'll want to keep the ID file you built in `/usr/include' for later use. If your working directory is elsewhere at the time, simply provide the `-f /usr/include' option to `lid' (see section Options for Programs that Read ID Databases).
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