man/orig/mkdep
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MKDEP(1) FreeBSD General Commands Manual MKDEP(1)
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[править] NAME
mkdep -- construct Makefile dependency list
[править] SYNOPSIS
mkdep [-ap] [-f file] [flags] file ...
[править] DESCRIPTION
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 dependen- cies 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 gcc as the preprocessor and to ignore system headers, one would use
depend: env MKDEP_CPP="gcc -E" MKDEP_CPP_OPTS=-MM mkdep \ ${CFLAGS} ${SRCS}
The options are as follows:
-a Append to the output file, so that multiple mkdep's may be run from a single Makefile.
-f Write the include file dependencies to file, instead of the default ``.depend.
-p Cause mkdep to produce dependencies of the form:
program: program.c
so that subsequent makes will produce program directly from its C module rather than using an intermediate .o module. This is use- ful for programs whose source is contained in a single module.
[править] ENVIRONMENT
CC Specifies the C compiler to use. The specified compiler is expected to have options consistent with the GNU C compiler.
MKDEP_CPP Specifies the preprocessor to use. The default is "${CC} -E".
MKDEP_CPP_OPTS Specifies the non-CFLAGS options for the preprocessor. The default is "-M".
[править] FILES
.depend File containing list of dependencies.
[править] SEE ALSO
[править] HISTORY
The mkdep command appeared in 4.3BSD-Tahoe.
FreeBSD 9.0 June 6, 1993 FreeBSD 9.0