src/usr.bin/make/make.1 - diff

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Diff for /src/usr.bin/make/make.1 between version 1.103 and 1.104

version 1.103, 2013/05/06 20:57:26

version 1.104, 2013/06/15 13:03:41

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.Op Fl BeiknpqrSst

.Op Fl D Ar variable

.Op Fl d Ar flags

.Op Fl f Ar makefile

.Op Fl f Ar mk

.Op Fl I Ar directory

.Op Fl j Ar max_processes

.Op Fl m Ar directory

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Standard options are as follows:

.Bl -tag -width Ds

.It Fl e

Specify that environment variables override macro assignments within

Environment variables override macro assignments within

makefiles.

.It Fl f Ar makefile

.It Fl f Ar mk

Specify a makefile to read instead of the default.

Read file

.Ar mk

instead of the default makefile.

.Ar makefile

.Ar mk

.Ql \- ,

standard input is read.

standard input is used.

Multiple makefiles may be specified, and are read in the order specified.

.It Fl i

Ignore non-zero exit of shell commands in the makefile.

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Do not execute any commands, but exit with status 0 if the specified targets

are up-to-date, and 1 otherwise.

.It Fl r

Do not use the built-in rules specified in the system makefile.

Do not use the built-in rules specified in the system makefile,

.Pa <sys.mk> .

.It Fl S

Stop processing when an error is encountered.

This is the default behavior.

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before each command line in the makefile.

.It Fl t

Rather than re-building a target as specified in the makefile, create it

or update its modification time to make it appear up-to-date.

or update its modification time to make it appear up-to-date, a bit like

.Xr touch 1 .

.It Ar NAME Ns = Ns Ar value

Set the value of the variable

.Ar NAME

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Print debugging information about variable assignment.

.El

.It Fl I Ar directory

Specify a directory in which to search for makefiles and included makefiles.

Specify a directory in which to search for makefiles and

The system makefile directory (or directories, see the

for "..."-style inclusions.

Multiple directories can be added to form a search path.

Furthermore, the system include path (see the

.Fl m

option) is automatically included as part of this list.

option) will be used after this search path.

.It Fl j Ar max_processes

Specify the maximum number of processes that

.Nm

may have running at any one time.

.It Fl m Ar directory

Specify a directory in which to search for

Specify a directory in which to search for system include files:

.Pa sys.mk

and makefiles included

and <...>-style inclusions.

via the <...> style.

Multiple directories can be added to form the system search path.

Multiple directories can be added to form a search path.

Using

This path will override the default system include path:

.Fl m

will override the default system include directory

.Pa /usr/share/mk .

Furthermore, the system include path will be appended to the search path used

for "..."-style inclusions (see the

.Fl I

option).

.It Fl V Ar variable

.Nm make Ns 's

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line are compressed into a single space.

.Sh DEPENDENCY LINES

Dependency lines consist of one or more targets, an operator, and zero

or more prerequisites.

or more prerequisites:

.Bd -literal -offset indent

.Ar target ... Ns : Ns Op Ar prerequisite ...

.Ed

.Pp

This creates a relationship where the targets

.Dq depend

on the prerequisites and are usually built from them.

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(This can be useful to debug recursive Makefiles.)

.El

.Pp

Commands are always executed using

Commands are executed using

.Pa /bin/sh

.Qq set -e

mode.

mode, unless

.Sq Ic \-

is specified.

.Pp

As an optimization,

.Nm