The
mkdep
utility 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 user has the ability to change the preprocessor and preprocessor options
used.
For instance, to use
cc
as the preprocessor and to ignore system
headers, one would use
depend:
env MKDEP_CPP="cc -E" MKDEP_CPP_OPTS=-MM mkdep \
${CFLAGS} ${SRCS}
The options are as follows:
|
| -a
|
| |
Append to the output file,
so that multiple
Ns
may be run from a single Makefile.
|
| -f
|
| |
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
amp;.o
module.
This is useful for programs whose source is contained in a single
module.
|
|
