85 lines
2.2 KiB
Groff
85 lines
2.2 KiB
Groff
.\" Copyright (c) 1987 Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms are permitted
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.\" provided that the above copyright notice and this paragraph are
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.\" duplicated in all such forms and that any documentation,
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.\" advertising materials, and other materials related to such
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.\" distribution and use acknowledge that the software was developed
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.\" by the University of California, Berkeley. The name of the
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.\" University may not be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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.\" WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.\" @(#)mkdep.1 5.8 (Berkeley) 10/24/88
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.\"
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.Dd October 24, 1988
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.Dt MKDEP @CMD_EXT_U@
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.Os BSD 4
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.Sh NAME
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.Nm mkdep
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.Nd construct Makefile dependency list
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.Sh SYNOPSIS
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.Nm mkdep
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.Op Fl ap
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.Op Fl f Ar depend_file
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.Op Ar flags
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.Ar file ...
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.Sh DESCRIPTION
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.Ic Mkdep
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takes a set of flags for the C compiler and a list
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of C source files as arguments and constructs a set of
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.Li include
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file dependencies which are written into the file
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.Pa depend_file ,
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or
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.Dq Pa .depend
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by default. An example of its use in a
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.Pa Makefile
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might be:
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.Bd -literal -offset indent
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CFLAGS= -O -DDEBUG -I../include -I.
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SRCS= file1.c file2.c
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depend:
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mkdep ${CFLAGS} ${SRCS}
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.Ed
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.Pp
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where the macro
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.Dq Li SRCS
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is the list of C source files and the macro
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.Dq Li CFLAGS
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is the list of flags for the C compiler.
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.Pp
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If the
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.Dq Fl p
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option is provided,
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.Ic mkdep
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produces dependencies
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of the form
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.Dq Li program: program.c
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so that subsequent calls to
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.Xr make @CMD_EXT@
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will produce
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.Dq Pa program
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directly from its C module rather than using an intermediate
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.Dq Pa \&.o
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module. This is useful in directories which
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contain many programs, each of whose source is contained in a single
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C module.
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.Pp
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The
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.Dq Fl a
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option causes appending to the output file, so that multiple
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.Xo Ic mkdep
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.Ns 's
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.Xc
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may be run from a single
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.Pa Makefile .
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.Sh SEE ALSO
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.Xr cc @CMD_EXT@ ,
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.Xr cpp @CMD_EXT@ ,
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.Xr make @CMD_EXT@ .
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