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30 .\" @(#)mkdep.1 8.1 (Berkeley) 6/6/93
37 .Nd construct Makefile dependency list
48 takes a set of flags for the C compiler and a list
49 of C source files as arguments and constructs a set of include
50 file dependencies which are written into the file ``.depend''.
51 An example of its use in a Makefile might be:
52 .Bd -literal -offset indent
53 CFLAGS= -O -I../include
57 mkdep -- ${CFLAGS} ${SRCS}
60 where the macro SRCS is the list of C source files and the macro
61 CFLAGS is the list of flags for the C compiler.
63 The options are as follows:
66 Append to the output file,
69 may be run from a single Makefile.
73 but read the list of filenames from stdin.
75 Post process and merge previously created (for example by
77 depend files into a single file.
79 Write the include file dependencies to
81 instead of the default ``.depend''.
83 Add an additional .OPTIONAL line for each dependant file.
87 to produce dependencies of the form:
88 .Bd -literal -offset indent
92 so that subsequent makes will produce
94 directly from its C module rather than using an intermediate
97 This is useful for programs whose source is contained in a single
100 is equivalent to specifying a null suffix with
103 Do not print a warning for inaccessible files when
107 Expand each target filename to a list, replacing the
109 suffix with each element of
111 The list of suffixes may be space or comma separated.
114 .Bl -tag -width .depend -compact
116 File containing list of dependencies.