Include files
Learn how a makefile is interpreted with strings.
If a line in a makefile starts with the string include
or
sinclude
followed by white space (at least one
<SPACE> or <TAB> character), the rest of the line is assumed to be a
file name. (This name can contain macros.) The contents of the file are
placed at the current location in the makefile.
For include
, a fatal error occurs if the file is not readable.
For sinclude
, a non-readable file is silently ignored.