The .mf files contain lists of source files. The .mf files are used when the binary file to be built uses many subdirectories, each subdirectory containing a variable number of files to be compiled.
Another form of .mf files are .lf files. The variables and macros used in the .mf and .lf files are listed in Table 4-5.
Table 4-5 Variables and macros used in .mf and .lf files| C++SRCS | C++ source files |
| C__SRCS | C source files |
| AS_SRCS | assembly code source files |
| M4_SRCS | M4 source files (assembly code source files preprocessed with m4). |
| OF_SRCS. | C++ source files used to produce offset files |