NAME
make - a program for maintaining large programs
SYNOPSIS
make [-f file] [-adeiknpqrst] [option] ... [target]
OPTIONS
-f Use file as the makefile
-d Print debugging information
-e Environment overrides makefile macros
-i Ignore status returned by commands
-k On error, skip to next command
-n Report, but do not execute
-p Print macros and targets
-q Question up-to-dateness of target
-r Rule inhibit; do not use default rules
-s Silent mode
-t Touch files instead of making them
EXAMPLES
make kernel # Make kernel up to date
make -n -f mfile # Tell what needs to be done
DESCRIPTION
Make is a program that is normally used for developing large
programs consisting of multiple files. It keeps track of
which object files depend on which source and header files.
When called, it does the minimum amount of recompilation to
bring the target file up to date.
The file dependencies are expected in makefile or Makefile ,
unless another file is specified with -f. Make has some
default rules built in, for example, it knows how to make .o
files from .c files. Here is a sample makefile .
d=/user/ast # d is a macro
program: head.o tail.o # program depends on these
cc -o program head.o tail.o # tells how to make program
echo Program done. # announce completion
head.o: $d/def.h head.c # head.o depends on these
tail.o: $d/var.h tail.c # tail.o depends on these
A complete description of make would require too much space
here. Many books on UNIX discuss make . Study the numerous
Makefiles in the MINIX 3 source tree for examples.
SEE ALSO
cc(1).