2 # $Id: Makefile,v 1.220 1998/09/29 22:03:12 jkh Exp $
4 # The user-driven targets are:
6 # buildworld - Rebuild *everything*, including glue to help do
8 # installworld - Install everything built by "buildworld".
9 # world - buildworld + installworld.
10 # update - Convenient way to update your source tree (cvs).
11 # most - Build user commands, no libraries or include files.
12 # installmost - Install user commands, no libraries or include files.
13 # aout-to-elf - Upgrade an system from a.out to elf format (see below).
14 # aout-to-elf-build - Build everything required to upgrade a system from
15 # a.out to elf format (see below).
16 # aout-to-elf-install - Install everything built by aout-to-elf-build (see
18 # move-aout-libs - Move the a.out libraries into an aout sub-directory
19 # of each elf library sub-directory.
21 # This makefile is simple by design. The FreeBSD make automatically reads
22 # the /usr/share/mk/sys.mk unless the -m argument is specified on the
23 # command line. By keeping this makefile simple, it doesn't matter too
24 # much how different the installed mk files are from those in the source
25 # tree. This makefile executes a child make process, forcing it to use
26 # the mk files from the source tree which are supposed to DTRT.
28 # The user-driven targets (as listed above) are implemented in Makefile.inc0
29 # and the private targets are in Makefile.inc1. These are kept separate
30 # to help the bootstrap build from aout to elf format.
32 # For novices wanting to build from current sources, the simple instructions
35 # 1. Ensure that your /usr/obj directory has at least 260 Mb of free space.
36 # 2. `cd /usr/src' (or to the directory containing your source tree).
39 # Be warned, this will update your installed system, except for configuration
40 # files in the /etc directory. You have to do those manually.
42 # If at first you're a little nervous about having a `make world' update
43 # your system, a `make buildworld' will build everything in the /usr/obj
44 # tree without touching your installed system. To be of any further use
45 # though, a `make installworld' is required.
47 # The `make world' process always follows the installed object format.
48 # This is set by creating /etc/objformat containing either OBJFORMAT=aout
49 # or OBJFORMAT=elf. If this file does not exist, the object format defaults
50 # to aout. This is expected to be changed to elf just prior to the release
51 # or 3.0. If OBJFORMAT is set as an environment variable or in /etc/make.conf,
52 # this overrides /etc/objformat.
54 # Unless -DNOAOUT is specified, a `make world' with OBJFORMAT=elf will
55 # update the legacy support for aout. This includes all libraries, ld.so,
56 # lkms and boot objects. This part of build should be regarded as
57 # deprecated and you should _not_ expect to be able to do this past the
58 # release of 3.1. You have exactly one major release to move entirely
61 # ----------------------------------------------------------------------------
63 # Upgrading an i386 system from a.out to elf format
66 # The aout->elf transition build is performed by doing a `make aout-to-elf'
67 # or a `make aout-to-elf-build' followed by a `make aout-to-elf-install'.
68 # You need to have at least 320 Mb of free space for the object tree.
70 # The upgrade process checks the installed release. If this is 3.0-CURRENT,
71 # it is assumed that your kernel contains all the syscalls required by the
74 # For installed systems where `uname -r' reports something other than
75 # 3.0-CURRENT, the upgrade process expects to build a kernel using the
76 # kernel configuration file sys/i386/conf/GENERICupgrade. This file is
77 # defaulted to the GENERIC kernel configuration file on the assumption that
78 # it will be suitable for most systems. Before performing the upgrade,
79 # replace sys/i386/conf/GENERICupgrade with your own version if your
80 # hardware requires a different configuration.
82 # The upgrade procedure will stop and ask for confirmation to proceed
83 # several times. On each occasion, you can type Ctrl-C to abort the
86 # At the end of the upgrade procedure, /etc/objformat is created or
87 # updated to contain OBJFORMAT=elf. From then on, you're elf by default.
89 # ----------------------------------------------------------------------------
92 # Define the user-driven targets. These are listed here in alphabetical
93 # order, but that's not important.
95 TGTS = afterdistribute all buildworld checkdpadd clean cleandepend cleandir \
96 depend distribute everything hierarchy includes install installmost \
97 installworld lint maninstall mk most obj objlink regress rerelease \
101 # Handle the user-driven targets, using the source relative mk files.
103 ${TGTS} : upgrade_checks
105 make -f Makefile.inc0 -m ${.CURDIR}/share/mk ${.TARGET}
107 # Set a reasonable default
111 # Perform a few tests to determine if the installed tools are adequate
112 # for building the world. These are for older systems (prior to 2.2.5).
114 # From 2.2.5 onwards, the installed tools will pass these upgrade tests,
115 # so the normal make world is capable of doing what is required to update
116 # the system to current.
119 @cd ${.CURDIR}; if `make -m ${.CURDIR}/share/mk test > /dev/null 2>&1`; then ok=1; else make -f Makefile.upgrade make; fi;
122 # A simple test target used as part of the test to see if make supports
128 # Define the upgrade targets. These are listed here in alphabetical
129 # order, but that's not important.
131 UPGRADE = aout-to-elf aout-to-elf-build aout-to-elf-install \
135 # Handle the upgrade targets, using the source relative mk files.
137 ${UPGRADE} : upgrade_checks
139 make -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET}