77 lines
2.0 KiB
Groff
77 lines
2.0 KiB
Groff
.TH MAKE 1
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.SH NAME
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make \- a program for maintaining large programs
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.SH SYNOPSIS
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\fBmake\fR [\fB\-f \fIfile\fR]\fR [\fB\-adeiknpqrst\fR] [\fIoption\fR] ... [\fItarget\fR]\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH OPTIONS
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.FL "\-f" "Use \fIfile\fP as the makefile"
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.FL "\-d" "Print debugging information"
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.FL "\-e" "Environment overrides makefile macros"
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.FL "\-i" "Ignore status returned by commands"
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.FL "\-k" "On error, skip to next command"
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.FL "\-n" "Report, but do not execute"
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.FL "\-p" "Print macros and targets"
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.FL "\-q" "Question up-to-dateness of target"
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.FL "\-r" "Rule inhibit; do not use default rules"
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.FL "\-s" "Silent mode"
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.FL "\-t" "Touch files instead of making them"
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.SH EXAMPLES
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.EX "make kernel" "Make \fIkernel\fP up to date"
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.EX "make \-n \-f mfile" "Tell what needs to be done"
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.SH DESCRIPTION
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.PP
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.I Make
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is a program that is normally used for developing large programs consisting of
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multiple files.
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It keeps track of which object files depend on which source and header files.
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When called, it does the minimum amount of recompilation to bring the target
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file up to date.
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.PP
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The file dependencies are expected in
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.I makefile
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or
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.I Makefile ,
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unless another file is specified with \fB\-f\fR.
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.I Make
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has some default rules built in, for example, it knows how to make
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.I .o
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files
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from
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.I .c
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files.
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Here is a sample
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.I makefile .
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.PP
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.nf
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.ta +0.2i +\w'program:'u+1m +\w'cc \-o program head.o tail.o'u+2m
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d=/user/ast # \fId\fP is a macro
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program: head.o tail.o # \fIprogram\fR depends on these
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cc \-o program head.o tail.o # tells how to make \fIprogram\fP
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echo Program done. # announce completion
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head.o: $d/def.h head.c # \fIhead.o\fP depends on these
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.br
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tail.o: $d/var.h tail.c # \fItail.o\fP depends on these
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.PP
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.fi
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A complete description of \fImake\fR would require too much space here.
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Many books on
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\s-2UNIX\s+2
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discuss
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.I make .
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Study the numerous \fIMakefiles\fR in the
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\s-1MINIX 3\s-1
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source tree for examples.
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.SH "SEE ALSO"
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.BR cc (1).
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