UPDATING revision 1.9
1$NetBSD: UPDATING,v 1.9 2001/01/01 15:29:16 sommerfeld Exp $ 2 3This file is intended to be a brief introduction to the build 4process and a reference on what to do if something doesn't work. 5 6For a more detailed description see Makefile. 7 8Recent changes: 9^^^^^^^^^^^^^^^ 10 1120010101: 12 bsd.subdir.mk committed 20001230 had a bug which caused 13 afterinstall targets to run too soon; update again. 14 1520001230: 16 New share/mk files needed to support .WAIT in SUBDIR variables. 17 If you get make errors, 18 (cd share/mk; make install) 19 Also, PRINTOBJDIR has changed and is now used more heavily. 20 2120001019: 22 The `ca' device driver has been replaced by `ld'; although the 23 major and minor numbers haven't changed, you should update your /dev 24 directory. 25 2620000929: 27 The following make directives are obsoleted. 28 MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA 29 By default, RSA is built into libcrypto. IDEA and RC5 will not be 30 bulit into libcrypto. By using MKCRYPTO_{RC5,IDEA}, you can build 31 additional library libcrypto_{idea,rc5}. 32 3320000623: 34 MKCRYPTO and friends added to share/mk/bsd.own.mk. 35 'cd share/mk ; make install' needed before make build. 36 37 38Hints for a more successful build: 39^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 40 Build a new kernel first: 41 This makes sure that any new system calls or features 42 expected by the new userland will be present. This 43 helps to avoid critical errors when upgrading. 44 Use object directories: 45 This helps to keep stale object 46 files from polluting the build if a Makefile "forgets" 47 about one. It also makes it easier to clean up after 48 a build. It's also necessary if you want to use the 49 same source tree for multiple machines. 50 To use object directories: 51 a) cd /usr/src ; make cleandir 52 b) Add "OBJMACHINE=yes" to /etc/mk.conf 53 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 54 d) cd /usr/src ; make build 55 Note that running "make obj" in a directory will create 56 in obj.$MACHINE directory. 57 Build to a DESTDIR: 58 This helps to keep old 59 installed files (especially libraries) from interfering 60 with the new build. 61 To build to a DESTDIR, set the DESTDIR environment 62 variable before running make build. It should be set to 63 the pathname of an initially empty directory. 64 Problems: you might need to update critical utilities 65 without using DESTDIR since nothing is executed 66 from what is installed in DESTDIR. 67 (See critical utils, below) 68 Build often: 69 This keeps critical utilities current enough to not choke 70 on any other part of the source tree that depends on up to 71 date functionality. 72 73What to do if things don't work: 74^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 75When things don't work there is usually a few things that commonly 76should be done. 77 1) make includes 78 This should be done automatically by make build. 79 2) cd share/mk && make install 80 Again, automatically done by make build. 81 82Failsafe rebuild of a small part of the tree: 83^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 84To make sure you rebuild something correctly you want to do 85something like the following: 86 1) Make sure the includes and .mk files are up to date. 87 2) Make sure any program used to build the particular 88 utility is up to date. (yacc, lex, etc...) 89 3) cd ...path/to/util... 90 make cleandir 91 rm ...all obj directories... 92 make cleandir # yes, again 93 make obj 94 make depend && make 95 96Failsafe rebuild of the entire tree: 97^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 98If you really want to make sure the source tree is clean and 99ready for a build try the following. Note that sourcing /etc/mk.conf 100(a make(1) Makefile) in this manner is not right, and will not work 101for anyone who uses any make(1) features in /etc/mk.conf. 102 103---cut here--- 104#!/bin/sh 105. /etc/mk.conf 106 107if [ -z $BSDSRCDIR ] ; then 108 BSDSRCDIR=/usr/src 109fi 110if [ \! -d $BSDSRCDIR ] ; then 111 echo Unable to find sources 112 exit 1 113fi 114find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 115 116if [ -z $BSDOBJDIR ] ; then 117 BSDOBJDIR=/usr/obj 118fi 119if [ -d $BSDOBJDIR ] ; then 120 rm -rf $BSDOBJDIR 121fi 122 123cd $BSDSRCDIR && make cleandir 124 125---cut here--- 126 127Critical utilities: 128^^^^^^^^^^^^^^^^^^^ 129 gnu/usr.bin/egcs 130 usr.bin/compile_et 131 usr.bin/make 132 usr.bin/yacc 133 usr.bin/lex 134 usr.sbin/config 135 136Other problems and possibly solutions: 137^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 138Symptom:Unreasonable compiler errors. 139Fix: Rebuild gnu/usr.bin/egcs 140 141Symptom:Complaints involving a Makefile. 142Fix: Make sure .mk files are up to date. 143 cd share/mk && make install 144Fix: Rebuild usr.bin/make 145 146Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 147Fix: Rebuild usr.sbin/config 148 149Symptom: 150Fix: Rebuild usr.bin/yacc 151 152Symptom: 153Fix: Rebuild usr.bin/lex 154 155Symptom: 156Fix: rm /usr/lib/libbfd.a 157 158Symptom:Obsolete intermediate files are used during compilation 159Fix: Try the following sequence of commands in the directory in question. 160 make cleandir; rm `make print-objdir`; make cleandir; make obj 161 (If you built the tree without "make obj" in the past, obsolete files 162 may remain. The command tries to clean everything up) 163 164Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type 165Fix: Rebuild and install usr.bin/menuc 166