2 # $Id: Makefile,v 1.226 1999/03/29 10:59:52 obrien 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 # upgrade - Upgrade a.out (2.2.x/3.0) system to the new ELF way
12 # most - Build user commands, no libraries or include files.
13 # installmost - Install user commands, no libraries or include files.
14 # aout-to-elf - Upgrade an system from a.out to elf format (see below).
15 # aout-to-elf-build - Build everything required to upgrade a system from
16 # a.out to elf format (see below).
17 # aout-to-elf-install - Install everything built by aout-to-elf-build (see
19 # move-aout-libs - Move the a.out libraries into an aout sub-directory
20 # of each elf library sub-directory.
22 # This makefile is simple by design. The FreeBSD make automatically reads
23 # the /usr/share/mk/sys.mk unless the -m argument is specified on the
24 # command line. By keeping this makefile simple, it doesn't matter too
25 # much how different the installed mk files are from those in the source
26 # tree. This makefile executes a child make process, forcing it to use
27 # the mk files from the source tree which are supposed to DTRT.
29 # The user-driven targets (as listed above) are implemented in Makefile.inc0
30 # and the private targets are in Makefile.inc1. These are kept separate
31 # to help the bootstrap build from aout to elf format.
33 # For novices wanting to build from current sources, the simple instructions
36 # 1. Ensure that your /usr/obj directory has at least 260 Mb of free space.
37 # 2. `cd /usr/src' (or to the directory containing your source tree).
40 # Be warned, this will update your installed system, except for configuration
41 # files in the /etc directory and for the kernel. You have to do those manually.
43 # If at first you're a little nervous about having a `make world' update
44 # your system, a `make buildworld' will build everything in the /usr/obj
45 # tree without touching your installed system. To be of any further use
46 # though, a `make installworld' is required.
48 # The `make world' process always follows the installed object format.
49 # This is set by creating /etc/objformat containing either OBJFORMAT=aout
50 # or OBJFORMAT=elf. If this file does not exist, the object format defaults
51 # to aout. This is expected to be changed to elf just prior to the release
52 # or 3.0. If OBJFORMAT is set as an environment variable or in /etc/make.conf,
53 # this overrides /etc/objformat.
55 # If -DWANT_AOUT is specified, a `make world' with OBJFORMAT=elf will
56 # update the legacy support for aout. This includes all libraries, ld.so
57 # and boot objects. This part of build should be regarded as
58 # deprecated and you should _not_ expect to be able to do this past the
59 # release of 3.1. You have exactly one major release to move entirely
62 # ----------------------------------------------------------------------------
64 # Upgrading an i386 system from a.out to elf format
67 # The aout->elf transition build is performed by doing a `make upgrade' (or
68 # `make aout-to-elf') or in two steps by a `make aout-to-elf-build' followed
69 # by a `make aout-to-elf-install', depending on user preference.
70 # You need to have at least 320 Mb of free space for the object tree.
72 # The upgrade process checks the installed release. If this is 3.0-CURRENT,
73 # it is assumed that your kernel contains all the syscalls required by the
76 # The upgrade procedure will stop and ask for confirmation to proceed
77 # several times. On each occasion, you can type Ctrl-C to abort the
78 # upgrade. Optionally, you can also start it with NOCONFIRM=yes and skip
79 # the confirmation steps.
81 # At the end of the upgrade procedure, /etc/objformat is created or
82 # updated to contain OBJFORMAT=elf. From then on, you're elf by default.
84 # ----------------------------------------------------------------------------
87 # Define the user-driven targets. These are listed here in alphabetical
88 # order, but that's not important.
90 TGTS = afterdistribute all buildworld checkdpadd clean cleandepend cleandir \
91 depend distribute everything hierarchy includes install installmost \
92 installworld lint maninstall mk most obj objlink regress rerelease \
96 # Handle the user-driven targets, using the source relative mk files.
98 ${TGTS} : upgrade_checks
100 ${MAKE} -f Makefile.inc0 -m ${.CURDIR}/share/mk ${.TARGET}
102 # Set a reasonable default
106 # Perform a few tests to determine if the installed tools are adequate
107 # for building the world. These are for older systems (prior to 2.2.5).
109 # From 2.2.5 onwards, the installed tools will pass these upgrade tests,
110 # so the normal make world is capable of doing what is required to update
111 # the system to current.
114 @cd ${.CURDIR}; if `make -m ${.CURDIR}/share/mk test > /dev/null 2>&1`; then ok=1; else ${MAKE} -f Makefile.upgrade make; fi;
117 # A simple test target used as part of the test to see if make supports
123 # Define the upgrade targets. These are listed here in alphabetical
124 # order, but that's not important.
126 UPGRADE = aout-to-elf aout-to-elf-build aout-to-elf-install \
130 # Handle the upgrade targets, using the source relative mk files.
135 ${UPGRADE} : upgrade_checks
137 ${MAKE} -f Makefile.upgrade -m ${.CURDIR}/share/mk ${.TARGET}