mkdep(1)

mkdep1

Construct makefile dependency list

Usage

mkdep [-ap] [-f file] [flags] file ...

Overview

mkdep takes a set of flags for the C compiler and a list of C source files as arguments and constructs a set of include file dependencies which are written into the file .depend, for use by make(1). An example of its use in a Makefile might be:

CFLAGS= -O -I../include
SRCS= file1.c file2.c
depend:
	mkdep ${CFLAGS} ${SRCS}

where the macro SRCS is the list of C source files and the macro CFLAGS is the list of flags for the C compiler.

The options are as follows:

-a

Append to the output file, so that multiple mkdep's may be run from a single Makefile.

-f file

Write the include file dependencies to file, instead of the default .depend.

-p

Cause mkdep to produce dependencies of the form:

program: program.c

so that subsequent makes will produce program directly from its C module rather than using an intermediate .o module. This is useful for programs whose source is contained in a single module.

Files

.depend

file containing list of dependencies

Releases

61 releases since OpenBSD 2.1; the text changed 6 times.

  1. 2.1–2.3
  2. 2.4–2.5
  3. 2.6–2.8
  4. 2.9–3.3
  5. 3.4–4.1
  6. 4.2–4.9
  7. 5.0–8.0

History

The mkdep command appeared in 4.3BSD-Tahoe.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.