bmkdep1

Usage

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''. 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.

-D

Post process (as -d) but read the list of filenames from stdin.

-d

Post process and merge previously created (for example by “cc -MD x.c”) depend files into a single file.

-f

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

-i

When -d or -D is used, instead of inlining the contents of the files to the resulting depend file, use include statements to include the source dependency files.

-o

Add an additional .OPTIONAL line for each dependent file.

-P

Prepend the string given in prefix to every target filename. This is useful for programs that have source files in multiple subdirectories and a single Makefile that references all of them explicitly (without using the VPATH functionality because there can be files with the same name in each subdirectory).

-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. -p is equivalent to specifying a null suffix with -s.

-q

Do not print a warning for inaccessible files when -d is given.

-s

Expand each target filename to a list, replacing the ‘.o’ suffix with each element of suffixes. The list of suffixes may be space or comma separated.

-v

print debugging output.

Files

.depend

File containing list of dependencies.