.\"  Copyright (c) 2017-2021, The CHICKEN Team
.\"  All rights reserved.
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.\"  modification, are permitted provided that the following conditions
.\"  are met:
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.Dd Apr 26, 2017
.Dt CHICKEN-DO 1
.Os
.Sh NAME
.Nm chicken-do
.Nd run a shell command unless the target exists and any dependency is
not newer than the target
.Sh SYNOPSIS
.Nm
.Op Fl q
.Op Fl h
.Op Fl -
.Ar TARGET ...
.Cm :
.Ar DEPENDENCY ...
.Cm :
.Ar COMMAND ...
.Sh DESCRIPTION
If the files
.Em TARGET ...
do not exist, or if any of the files in
.Em DEPENDENCY ...
are newer than one of the target files, then execute the shell commands in
.Em COMMAND ... .
.Pp
The program accepts the following options:
.Bl -tag -width Ds
.It Fl h
Show usage and exit.
.It Fl q
Quiet operation - do not print shell commands when they are executed.
.It Fl -
Treat all following tokens as target filenames, even if they begin with a
.Fl
character.
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
Build a C program from sources:
.Pp
.Dl $ chicken-do prg : prg.c inc.h : gcc prg.c -o prg
.Sh SEE ALSO
.Xr chicken 1 ,
.Xr chicken-status 1 ,
.Xr chicken-install 1 ,
.Xr chicken-uninstall 1 ,
.Xr csc 1
.Pp
More information can be found in the
.Lk http://wiki.call-cc.org/manual/index "CHICKEN User's Manual".
.Sh AUTHORS
.An The CHICKEN Team
.Sh BUGS
Submit bug reports by e-mail to
.Mt chicken-janitors@nongnu.org