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Annotation of src/UPDATING, Revision 1.4

1.4     ! itojun      1: $NetBSD: UPDATING,v 1.3 2000/08/20 19:51:24 itojun Exp $
1.1       abs         2:
                      3: This file is intended to be a brief introduction to the build
                      4: process and a reference on what to do if something doesn't work.
                      5:
                      6: For a more detailed description see Makefile.
                      7:
                      8: Recent changes:
                      9: ^^^^^^^^^^^^^^^
                     10:
1.4     ! itojun     11: 20000929:
        !            12:        The following make directives are obsoleted.
        !            13:        MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA
        !            14:        By default, RSA is built into libcrypto.  IDEA and RC5 will not be
        !            15:        bulit into libcrypto.  By using MKCRYPTO_{RC5,IDEA}, you can build
        !            16:        additional library libcrypto_{idea,rc5}.
        !            17:
1.1       abs        18: 20000623:
                     19:        MKCRYPTO and friends added to share/mk/bsd.own.mk.
                     20:        'cd share/mk ; make install' needed before make build.
                     21:
                     22:
                     23: Hints for a more successful build:
                     24: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.2       mrg        25:     Build a new kernel first:
                     26:        This makes sure that any new system calls or features
                     27:           expected by the new userland will be present.  This
                     28:           helps to avoid critical errors when upgrading.
1.1       abs        29:     Use object directories:
                     30:        This helps to keep stale object
                     31:           files from polluting the build if a Makefile "forgets"
                     32:           about one.  It also makes it easier to clean up after
                     33:           a build.  It's also necessary if you want to use the
                     34:           same source tree for multiple machines.
                     35:           To use object directories:
                     36:            a) cd /usr/src ; make cleandir
1.2       mrg        37:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                     38:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs        39:            d) cd /usr/src ; make build
1.2       mrg        40:           Note that running "make obj" in a directory will create
                     41:           in obj.$MACHINE directory.
1.1       abs        42:     Build to a DESTDIR:
                     43:        This helps to keep old
                     44:           installed files (especially libraries) from interfering
                     45:           with the new build.
                     46:           To build to a DESTDIR, set the DESTDIR environment
1.2       mrg        47:           variable before running make build.  It should be set to
                     48:           the pathname of an initially empty directory.
1.1       abs        49:           Problems: you might need to update critical utilities
                     50:                without using DESTDIR since nothing is executed
                     51:                from what is installed in DESTDIR.
                     52:                (See critical utils, below)
                     53:     Build often:
                     54:        This keeps critical utilities current enough to not choke
                     55:        on any other part of the source tree that depends on up to
                     56:        date functionality.
                     57:
                     58: What to do if things don't work:
                     59: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                     60: When things don't work there is usually a few things that commonly
                     61: should be done.
                     62:     1) make includes
                     63:        This should be done automatically by make build.
                     64:     2)  cd share/mk && make install
                     65:        Again, automatically done by make build.
                     66:
                     67: Failsafe rebuild of a small part of the tree:
                     68: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                     69: To make sure you rebuild something correctly you want to do
                     70: something like the following:
                     71:     1)  Make sure the includes and .mk files are up to date.
                     72:     2)  Make sure any program used to build the particular
                     73:        utility is up to date.  (yacc, lex, etc...)
                     74:     3)  cd ...path/to/util...
                     75:        make cleandir
                     76:        rm ...all obj directories...
                     77:        make cleandir                   # yes, again
                     78:        make obj
                     79:        make depend && make
                     80:
                     81: Failsafe rebuild of the entire tree:
                     82: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                     83: If you really want to make sure the source tree is clean and
1.2       mrg        84: ready for a build try the following.  Note that sourcing /etc/mk.conf
                     85: (a make(1) Makefile) in this manner is not right, and will not work
                     86: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs        87:
                     88: ---cut here---
                     89: #!/bin/sh
                     90: . /etc/mk.conf
                     91:
                     92: if [ -z $BSDSRCDIR ] ; then
                     93:     BSDSRCDIR=/usr/src
                     94: fi
                     95: if [ \! -d $BSDSRCDIR ] ; then
                     96:     echo Unable to find sources
                     97:     exit 1
                     98: fi
                     99: find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
                    100:
                    101: if [ -z $BSDOBJDIR ] ; then
                    102:     BSDOBJDIR=/usr/obj
                    103: fi
                    104: if [ -d $BSDOBJDIR ] ; then
                    105:     rm -rf $BSDOBJDIR
                    106: fi
                    107:
                    108: cd $BSDSRCDIR && make cleandir
                    109:
                    110: ---cut here---
                    111:
                    112: Critical utilities:
                    113: ^^^^^^^^^^^^^^^^^^^
                    114:        gnu/usr.bin/egcs
1.3       itojun    115:        usr.bin/compile_et
1.1       abs       116:        usr.bin/make
                    117:        usr.bin/yacc
                    118:        usr.bin/lex
1.2       mrg       119:        usr.sbin/config
1.1       abs       120:
                    121: Other problems and possibly solutions:
                    122: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    123: Symptom:Unreasonable compiler errors.
                    124: Fix:   Rebuild gnu/usr.bin/egcs
                    125:
                    126: Symptom:Complaints involving a Makefile.
                    127: Fix:   Make sure .mk files are up to date.
                    128:        cd share/mk && make install
                    129: Fix:   Rebuild usr.bin/make
1.2       mrg       130:
                    131: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
                    132: Fix:   Rebuild usr.sbin/config
1.1       abs       133:
                    134: Symptom:
                    135: Fix:   Rebuild usr.bin/yacc
                    136:
                    137: Symptom:
                    138: Fix:   Rebuild usr.bin/lex
                    139:
                    140: Symptom:
                    141: Fix:   rm /usr/lib/libbfd.a
1.4     ! itojun    142:
        !           143: Symptom:Obsolete intermediate files are used during compilation
        !           144: Fix:   Try the following sequence of commands in the directory in question.
        !           145:        make cleandir; rm `make print-objdir`; make cleandir; make obj
        !           146:        (If you built the tree without "make obj" in the past, obsolete files
        !           147:        may remain.  The command tries to clean everything up)

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