516 lines
18 KiB
Plaintext
516 lines
18 KiB
Plaintext
# $NetBSD: bsd.README,v 1.28 1997/05/29 06:26:35 mikel Exp $
|
|
# @(#)bsd.README 8.2 (Berkeley) 4/2/94
|
|
|
|
This is the README file for the new make "include" files for the BSD
|
|
source tree. The files are installed in /usr/share/mk, and are, by
|
|
convention, named with the suffix ".mk".
|
|
|
|
Note, this file is not intended to replace reading through the .mk
|
|
files for anything tricky.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
CONFIGURATION:
|
|
|
|
`Global' configuration variables you wish to use for all builds
|
|
may be placed in the file pointed to by the MAKECONF variable, or
|
|
/etc/mk.conf if MAKECONF is unset. Configuration for a certain
|
|
directory tree may be placed in Build.conf at the root of that
|
|
tree. The first instance of make will search from the source
|
|
directory upwards for a Build.conf file; when it finds one, it will
|
|
include it and remember the location in the BUILDCONF variable,
|
|
which will be passed on to any further instances of make in MAKEFLAGS.
|
|
If you wish to use a specific Build.conf file, you can just specify
|
|
it (using a full path) in the BUILDCONF variable when you run make.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
BUILD DIRECTORIES:
|
|
|
|
These makefiles use the concept of a `build directory,' which holds
|
|
include files and libraries that the programs are built against.
|
|
This allows you to build an entire new system, including new
|
|
libraries, without having to install its include files or libraries
|
|
into the currently running system.
|
|
|
|
When you start make it will check for the existence of the directory
|
|
named in BSDOBJDIR, with your architecture name appended if
|
|
USR_OBJMACHINE is defined. If that directory exists, it assumes
|
|
that you are compiling your object files to it and it will create
|
|
a subdirectory under it called `build' to be your build directory.
|
|
`make includes' will install include files to that, rather than to
|
|
DESTDIR, and when the libraries are compiled links to them will be
|
|
placed in the build directory as well.
|
|
|
|
Please note that for this to work BSDOBJDIR must be set while you
|
|
are doing your compile, not just while you're doing the `make obj'
|
|
(as previously). The actual location of the object files will still
|
|
be wherever the symbolic links for `obj' or `obj.machine' in your
|
|
source tree point.
|
|
|
|
If you are not using a separate object tree (you are putting the
|
|
object files in the source directories or in obj directories under
|
|
the source directories), DESTDIR will be used as the build directory,
|
|
and you will need to install include files and libraries there by
|
|
hand before you can compile other programs.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
RANDOM THINGS WORTH KNOWING:
|
|
|
|
The files are simply C-style #include files, and pretty much behave like
|
|
you'd expect. The syntax is slightly different in that a single '.' is
|
|
used instead of the hash mark, i.e. ".include <bsd.prog.mk>".
|
|
|
|
One difference that will save you lots of debugging time is that inclusion
|
|
of the file is normally done at the *end* of the Makefile. The reason for
|
|
this is because .mk files often modify variables and behavior based on the
|
|
values of variables set in the Makefile. To make this work, remember that
|
|
the FIRST target found is the target that is used, i.e. if the Makefile has:
|
|
|
|
a:
|
|
echo a
|
|
a:
|
|
echo a number two
|
|
|
|
the command "make a" will echo "a". To make things confusing, the SECOND
|
|
variable assignment is the overriding one, i.e. if the Makefile has:
|
|
|
|
a= foo
|
|
a= bar
|
|
|
|
b:
|
|
echo ${a}
|
|
|
|
the command "make b" will echo "bar". This is for compatibility with the
|
|
way the V7 make behaved.
|
|
|
|
It's fairly difficult to make the BSD .mk files work when you're building
|
|
multiple programs in a single directory. It's a lot easier split up the
|
|
programs than to deal with the problem. Most of the agony comes from making
|
|
the "obj" directory stuff work right, not because we switch to a new version
|
|
of make. So, don't get mad at us, figure out a better way to handle multiple
|
|
architectures so we can quit using the symbolic link stuff. (Imake doesn't
|
|
count.)
|
|
|
|
The file .depend in the source directory is expected to contain dependencies
|
|
for the source files. This file is read automatically by make after reading
|
|
the Makefile.
|
|
|
|
The variable DESTDIR works as before. It's not set anywhere but will change
|
|
the tree where the file gets installed.
|
|
|
|
The profiled libraries are no longer built in a different directory than
|
|
the regular libraries. A new suffix, ".po", is used to denote a profiled
|
|
object, and ".so" denotes a shared (position-independent) object.
|
|
|
|
There are two variables that control how things are made/installed that
|
|
are not set by default:
|
|
|
|
BUILD If set 'make install' checks that the targets in the source
|
|
directories are up-to-date and remakes them if they
|
|
are out of date, instead of blindly trying to install
|
|
out of date or non-existant targets.
|
|
|
|
UPDATE 'make install' only installs targets that are more recently
|
|
modified in the source directories that their installed
|
|
counterparts.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <sys.mk> has the default rules for all makes, in the BSD
|
|
environment or otherwise. You probably don't want to touch this file.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.man.mk> handles installing manual pages and their
|
|
links.
|
|
|
|
It has a two targets:
|
|
|
|
maninstall:
|
|
Install the manual page sources and their links.
|
|
catinstall:
|
|
Install the preformatted manual pages and their links.
|
|
|
|
It sets/uses the following variables:
|
|
|
|
MANDIR Base path for manual installation.
|
|
|
|
MANGRP Manual group.
|
|
|
|
MANOWN Manual owner.
|
|
|
|
MANMODE Manual mode.
|
|
|
|
MANSUBDIR Subdirectory under the manual page section, i.e. "/vax"
|
|
or "/tahoe" for machine specific manual pages.
|
|
|
|
MAN The manual pages to be installed (use a .1 - .9 suffix).
|
|
|
|
MLINKS List of manual page links (using a .1 - .9 suffix). The
|
|
linked-to file must come first, the linked file second,
|
|
and there may be multiple pairs. The files are soft-linked.
|
|
|
|
The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
|
|
it exists.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.own.mk> contains source tree configuration parameters,
|
|
such as the owners, groups, etc. for both manual pages and binaries, and
|
|
a few global "feature configuration" parameters.
|
|
|
|
It has no targets.
|
|
|
|
This file is safe to include more than once, and may be included
|
|
at the top of your makefile, rather than the bottom, if your makefile
|
|
needs any of the information it defines.
|
|
|
|
To get system- and build-specific configuration parameters, bsd.own.mk
|
|
will look for the MAKECONF and BUILDCONF files as described under
|
|
the `Configuration' section above.
|
|
|
|
bsd.own.mk sets the following variables, if they are not already defined
|
|
(defaults are in brackets):
|
|
|
|
|
|
|
|
BSDSRCDIR The real path to the system sources, so that 'make obj'
|
|
will work correctly. [/usr/src]
|
|
|
|
BSDOBJDIR The real path to the system 'obj' tree, so that 'make obj'
|
|
will work correctly. [/usr/obj]
|
|
|
|
BINGRP Binary group. [bin]
|
|
|
|
BINOWN Binary owner. [bin]
|
|
|
|
BINMODE Binary mode. [555]
|
|
|
|
NONBINMODE Mode for non-executable files. [444]
|
|
|
|
MANDIR Base path for manual installation. [/usr/share/man/cat]
|
|
|
|
MANGRP Manual group. [bin]
|
|
|
|
MANOWN Manual owner. [bin]
|
|
|
|
MANMODE Manual mode. [${NONBINMODE}]
|
|
|
|
MANINSTALL Manual installation type: maninstall, catinstall, or both
|
|
|
|
LIBDIR Base path for library installation. [/usr/lib]
|
|
|
|
LINTLIBDIR Base path for lint(1) library installation. [/usr/libdata/lint]
|
|
|
|
LIBGRP Library group. [${BINGRP}]
|
|
|
|
LIBOWN Library owner. [${BINOWN}]
|
|
|
|
LIBMODE Library mode. [${NONBINMODE}]
|
|
|
|
DOCDIR Base path for system documentation (e.g. PSD, USD, etc.)
|
|
installation. [/usr/share/doc]
|
|
|
|
DOCGRP Documentation group. [bin]
|
|
|
|
DOCOWN Documentation owner. [bin]
|
|
|
|
DOCMODE Documentation mode. [${NONBINMODE}]
|
|
|
|
NLSDIR Base path for National Language Support files installation.
|
|
[/usr/share/nls]
|
|
|
|
NLSGRP National Language Support files group. [bin]
|
|
|
|
NLSOWN National Language Support files owner. [bin]
|
|
|
|
NLSMODE National Language Support files mode. [${NONBINMODE}]
|
|
|
|
STRIP The flag passed to the install program to cause the binary
|
|
to be stripped. This is to be used when building your
|
|
own install script so that the entire system can be made
|
|
stripped/not-stripped using a single knob. [-s]
|
|
|
|
COPY The flag passed to the install program to cause the binary
|
|
to be copied rather than moved. This is to be used when
|
|
building our own install script so that the entire system
|
|
can either be installed with copies, or with moves using
|
|
a single knob. [-c]
|
|
|
|
Additionally, the following variables may be set by bsd.own.mk or in a
|
|
make configuration file to modify the behaviour of the system build
|
|
process (default values are in brackets along with comments, if set by
|
|
bsd.own.mk):
|
|
|
|
EXPORTABLE_SYSTEM
|
|
Do not build /usr/src/domestic, even if it is present.
|
|
|
|
SKEY Compile in support for S/key authentication. [yes, set
|
|
unconditionally]
|
|
|
|
KERBEROS Compile in support for Kerberos 4 authentication.
|
|
|
|
KERBEROS5 Compile in support for Kerberos 5 authentication.
|
|
|
|
MANZ Compress manual pages at installation time.
|
|
|
|
SYS_INCLUDE Copy or symlink kernel include files into /usr/include.
|
|
Possible values are "symlinks" or "copies" (which is
|
|
the same as the variable being unset).
|
|
|
|
NOPROFILE Do not build profiled versions of system libraries
|
|
|
|
NOPIC Do not build PIC versions of system libraries, and
|
|
do not build shared libraries. [set if ${MACHINE_ARCH}
|
|
is "mips", "vax", "alpha" or "arm32", unset otherwise.]
|
|
|
|
NOLINT Do not build lint libraries. [set, set unconditionally]
|
|
|
|
bsd.own.mk is generally useful when building your own Makefiles so that
|
|
they use the same default owners etc. as the rest of the tree.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.prog.mk> handles building programs from one or
|
|
more source files, along with their manual pages. It has a limited number
|
|
of suffixes, consistent with the current needs of the BSD tree.
|
|
|
|
It has eight targets:
|
|
|
|
all:
|
|
build the program and its manual page
|
|
clean:
|
|
remove the program, any object files and the files a.out,
|
|
Errs, errs, mklog, and ${PROG}.core.
|
|
cleandir:
|
|
remove all of the files removed by the target clean, as
|
|
well as .depend, tags, and any manual pages.
|
|
depend:
|
|
make the dependencies for the source files, and store
|
|
them in the file .depend.
|
|
includes:
|
|
install any header files.
|
|
install:
|
|
install the program and its manual pages; if the Makefile
|
|
does not itself define the target install, the targets
|
|
beforeinstall and afterinstall may also be used to cause
|
|
actions immediately before and after the install target
|
|
is executed.
|
|
lint:
|
|
run lint on the source files
|
|
tags:
|
|
create a tags file for the source files.
|
|
|
|
It sets/uses the following variables:
|
|
|
|
BINGRP Binary group.
|
|
|
|
BINOWN Binary owner.
|
|
|
|
BINMODE Binary mode.
|
|
|
|
CLEANFILES Additional files to remove for the clean and cleandir targets.
|
|
|
|
COPTS Additional flags to the compiler when creating C objects.
|
|
|
|
LDADD Additional loader objects. Usually used for libraries.
|
|
For example, to load with the compatibility and utility
|
|
libraries, use:
|
|
|
|
LDADD+=-lutil -lcompat
|
|
|
|
LDFLAGS Additional loader flags.
|
|
|
|
LINKS The list of binary links; should be full pathnames, the
|
|
linked-to file coming first, followed by the linked
|
|
file. The files are hard-linked. For example, to link
|
|
/bin/test and /bin/[, use:
|
|
|
|
LINKS= ${DESTDIR}/bin/test ${DESTDIR}/bin/[
|
|
|
|
SYMLINKS The list of symbolic links; should be full pathnames.
|
|
Syntax is identical to LINKS. Note that DESTDIR is not
|
|
automatically included in the link.
|
|
|
|
MAN Manual pages (should end in .1 - .9). If no MAN variable is
|
|
defined, "MAN=${PROG}.1" is assumed.
|
|
|
|
PROG The name of the program to build. If not supplied, nothing
|
|
is built.
|
|
|
|
PROGNAME The name that the above program will be installed as, if
|
|
different from ${PROG}.
|
|
|
|
SRCS List of source files to build the program. If PROG is not
|
|
defined, it's assumed to be ${PROG}.c.
|
|
|
|
DPADD Additional dependencies for the program. Usually used for
|
|
libraries. For example, to depend on the compatibility and
|
|
utility libraries use:
|
|
|
|
DPADD+=${LIBCOMPAT} ${LIBUTIL}
|
|
|
|
The following libraries are predefined for DPADD:
|
|
|
|
LIBCRT0?= ${DESTDIR}/usr/lib/crt0.o
|
|
LIBC?= ${DESTDIR}/usr/lib/libc.a
|
|
LIBC_PIC?= ${DESTDIR}/usr/lib/libc_pic.a
|
|
LIBCOMPAT?= ${DESTDIR}/usr/lib/libcompat.a
|
|
LIBCRYPT?= ${DESTDIR}/usr/lib/libcrypt.a
|
|
LIBCURSES?= ${DESTDIR}/usr/lib/libcurses.a
|
|
LIBDBM?= ${DESTDIR}/usr/lib/libdbm.a
|
|
LIBDES?= ${DESTDIR}/usr/lib/libdes.a
|
|
LIBEDIT?= ${DESTDIR}/usr/lib/libedit.a
|
|
LIBGCC?= ${DESTDIR}/usr/lib/libgcc.a
|
|
LIBGNUMALLOC?= ${DESTDIR}/usr/lib/libgnumalloc.a
|
|
LIBKDB?= ${DESTDIR}/usr/lib/libkdb.a
|
|
LIBKRB?= ${DESTDIR}/usr/lib/libkrb.a
|
|
LIBKVM?= ${DESTDIR}/usr/lib/libkvm.a
|
|
LIBL?= ${DESTDIR}/usr/lib/libl.a
|
|
LIBM?= ${DESTDIR}/usr/lib/libm.a
|
|
LIBMP?= ${DESTDIR}/usr/lib/libmp.a
|
|
LIBNTP?= ${DESTDIR}/usr/lib/libntp.a
|
|
LIBPC?= ${DESTDIR}/usr/lib/libpc.a
|
|
LIBPCAP?= ${DESTDIR}/usr/lib/libpcap.a
|
|
LIBPLOT?= ${DESTDIR}/usr/lib/libplot.a
|
|
LIBPOSIX?= ${DESTDIR}/usr/lib/libposix.a
|
|
LIBRESOLV?= ${DESTDIR}/usr/lib/libresolv.a
|
|
LIBRPCSVC?= ${DESTDIR}/usr/lib/librpcsvc.a
|
|
LIBSKEY?= ${DESTDIR}/usr/lib/libskey.a
|
|
LIBTERMCAP?= ${DESTDIR}/usr/lib/libtermcap.a
|
|
LIBTELNET?= ${DESTDIR}/usr/lib/libtelnet.a
|
|
LIBUTIL?= ${DESTDIR}/usr/lib/libutil.a
|
|
LIBWRAP?= ${DESTDIR}/usr/lib/libwrap.a
|
|
LIBY?= ${DESTDIR}/usr/lib/liby.a
|
|
LIBZ?= ${DESTDIR}/usr/lib/libz.a
|
|
|
|
|
|
SHAREDSTRINGS If defined, a new .c.o rule is used that results in shared
|
|
strings, using xstr(1). Note that this will not work with
|
|
parallel makes.
|
|
|
|
STRIP The flag passed to the install program to cause the binary
|
|
to be stripped.
|
|
|
|
SUBDIR A list of subdirectories that should be built as well.
|
|
Each of the targets will execute the same target in the
|
|
subdirectories.
|
|
|
|
SCRIPTS A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
|
|
These are installed exactly like programs.
|
|
|
|
SCRIPTSNAME The name that the above program will be installed as, if
|
|
different from ${SCRIPTS}. These can be further specialized
|
|
by setting SCRIPTSNAME_<script>.
|
|
|
|
FILES A list of files to install. The installation is controlled
|
|
by the FILESNAME, FILESOWN, FILESGRP, FILESMODE, FILESDIR
|
|
variables that can be further specialized by FILES<VAR>_<file>
|
|
|
|
The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
|
|
if it exists, as well as the include file <bsd.man.mk>.
|
|
|
|
Some simple examples:
|
|
|
|
To build foo from foo.c with a manual page foo.1, use:
|
|
|
|
PROG= foo
|
|
|
|
.include <bsd.prog.mk>
|
|
|
|
To build foo from foo.c with a manual page foo.2, add the line:
|
|
|
|
MAN= foo.2
|
|
|
|
If foo does not have a manual page at all, add the line:
|
|
|
|
NOMAN= noman
|
|
|
|
If foo has multiple source files, add the line:
|
|
|
|
SRCS= a.c b.c c.c d.c
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.subdir.mk> contains the default targets for building
|
|
subdirectories. It has the same eight targets as <bsd.prog.mk>: all,
|
|
clean, cleandir, depend, includes, install, lint, and tags. For all of
|
|
the directories listed in the variable SUBDIRS, the specified directory
|
|
will be visited and the target made. There is also a default target which
|
|
allows the command "make subdir" where subdir is any directory listed in
|
|
the variable SUBDIRS.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
|
|
and is included from from bsd.lib.mk and bsd.prog.mk.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.files.mk> handles the FILES variables and is included
|
|
from bsd.lib.mk and bsd.prog.mk.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.inc.mk> defines the following targets:
|
|
|
|
install:
|
|
Install the include files in their final home,
|
|
under DESTDIR.
|
|
|
|
includes:
|
|
Install the include files under BUILDDIR.
|
|
|
|
INCS The list of include files
|
|
|
|
INCSDIR The location to install the include files (relative
|
|
to DESTDIR or BUILDDIR).
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.sys.mk> is used by <bsd.prog.mk> and
|
|
<bsd.lib.mk>. It contains overrides that are used when building
|
|
the NetBSD source tree. For instance, if "PARALLEL" is defined by
|
|
the program/library Makefile, it includes a set of rules for lex and
|
|
yacc that allow multiple lex and yacc targets to be built in parallel.
|
|
|
|
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
|
|
|
The include file <bsd.lib.mk> has support for building libraries. It has
|
|
the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
|
|
includes, install, lint, and tags. It has a limited number of suffixes,
|
|
consistent with the current needs of the BSD tree.
|
|
|
|
It sets/uses the following variables:
|
|
|
|
LIB The name of the library to build.
|
|
|
|
LIBDIR Target directory for libraries.
|
|
|
|
LINTLIBDIR Target directory for lint libraries.
|
|
|
|
LIBGRP Library group.
|
|
|
|
LIBOWN Library owner.
|
|
|
|
LIBMODE Library mode.
|
|
|
|
LDADD Additional loader objects.
|
|
|
|
MAN The manual pages to be installed (use a .1 - .9 suffix).
|
|
|
|
SRCS List of source files to build the library. Suffix types
|
|
.s, .c, and .f are supported. Note, .s files are preferred
|
|
to .c files of the same name. (This is not the default for
|
|
versions of make.)
|
|
|
|
The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
|
|
if it exists, as well as the include file <bsd.man.mk>.
|
|
|
|
It has rules for building profiled objects; profiled libraries are
|
|
built by default.
|
|
|
|
Libraries are ranlib'd when made.
|