UPDATING revision 1.10
1$NetBSD: UPDATING,v 1.10 2001/01/15 15:03:38 christos 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 1120010114: 12 introduce .if commands(target) in make(1). You need to 13 bring everything up-to-date first, then without installing 14 anything make and install in /usr/bin/make, then proceed 15 with make build. 16 1720010101: 18 bsd.subdir.mk committed 20001230 had a bug which caused 19 afterinstall targets to run too soon; update again. 20 2120001230: 22 New share/mk files needed to support .WAIT in SUBDIR variables. 23 If you get make errors, 24 (cd share/mk; make install) 25 Also, PRINTOBJDIR has changed and is now used more heavily. 26 2720001019: 28 The `ca' device driver has been replaced by `ld'; although the 29 major and minor numbers haven't changed, you should update your /dev 30 directory. 31 3220000929: 33 The following make directives are obsoleted. 34 MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA 35 By default, RSA is built into libcrypto. IDEA and RC5 will not be 36 bulit into libcrypto. By using MKCRYPTO_{RC5,IDEA}, you can build 37 additional library libcrypto_{idea,rc5}. 38 3920000623: 40 MKCRYPTO and friends added to share/mk/bsd.own.mk. 41 'cd share/mk ; make install' needed before make build. 42 43 44Hints for a more successful build: 45^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 46 Build a new kernel first: 47 This makes sure that any new system calls or features 48 expected by the new userland will be present. This 49 helps to avoid critical errors when upgrading. 50 Use object directories: 51 This helps to keep stale object 52 files from polluting the build if a Makefile "forgets" 53 about one. It also makes it easier to clean up after 54 a build. It's also necessary if you want to use the 55 same source tree for multiple machines. 56 To use object directories: 57 a) cd /usr/src ; make cleandir 58 b) Add "OBJMACHINE=yes" to /etc/mk.conf 59 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 60 d) cd /usr/src ; make build 61 Note that running "make obj" in a directory will create 62 in obj.$MACHINE directory. 63 Build to a DESTDIR: 64 This helps to keep old 65 installed files (especially libraries) from interfering 66 with the new build. 67 To build to a DESTDIR, set the DESTDIR environment 68 variable before running make build. It should be set to 69 the pathname of an initially empty directory. 70 Problems: you might need to update critical utilities 71 without using DESTDIR since nothing is executed 72 from what is installed in DESTDIR. 73 (See critical utils, below) 74 Build often: 75 This keeps critical utilities current enough to not choke 76 on any other part of the source tree that depends on up to 77 date functionality. 78 79What to do if things don't work: 80^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 81When things don't work there is usually a few things that commonly 82should be done. 83 1) make includes 84 This should be done automatically by make build. 85 2) cd share/mk && make install 86 Again, automatically done by make build. 87 88Failsafe rebuild of a small part of the tree: 89^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 90To make sure you rebuild something correctly you want to do 91something like the following: 92 1) Make sure the includes and .mk files are up to date. 93 2) Make sure any program used to build the particular 94 utility is up to date. (yacc, lex, etc...) 95 3) cd ...path/to/util... 96 make cleandir 97 rm ...all obj directories... 98 make cleandir # yes, again 99 make obj 100 make depend && make 101 102Failsafe rebuild of the entire tree: 103^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 104If you really want to make sure the source tree is clean and 105ready for a build try the following. Note that sourcing /etc/mk.conf 106(a make(1) Makefile) in this manner is not right, and will not work 107for anyone who uses any make(1) features in /etc/mk.conf. 108 109---cut here--- 110#!/bin/sh 111. /etc/mk.conf 112 113if [ -z $BSDSRCDIR ] ; then 114 BSDSRCDIR=/usr/src 115fi 116if [ \! -d $BSDSRCDIR ] ; then 117 echo Unable to find sources 118 exit 1 119fi 120find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 121 122if [ -z $BSDOBJDIR ] ; then 123 BSDOBJDIR=/usr/obj 124fi 125if [ -d $BSDOBJDIR ] ; then 126 rm -rf $BSDOBJDIR 127fi 128 129cd $BSDSRCDIR && make cleandir 130 131---cut here--- 132 133Critical utilities: 134^^^^^^^^^^^^^^^^^^^ 135 gnu/usr.bin/egcs 136 usr.bin/compile_et 137 usr.bin/make 138 usr.bin/yacc 139 usr.bin/lex 140 usr.sbin/config 141 142Other problems and possibly solutions: 143^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 144Symptom:Unreasonable compiler errors. 145Fix: Rebuild gnu/usr.bin/egcs 146 147Symptom:Complaints involving a Makefile. 148Fix: Make sure .mk files are up to date. 149 cd share/mk && make install 150Fix: Rebuild usr.bin/make 151 152Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 153Fix: Rebuild usr.sbin/config 154 155Symptom: 156Fix: Rebuild usr.bin/yacc 157 158Symptom: 159Fix: Rebuild usr.bin/lex 160 161Symptom: 162Fix: rm /usr/lib/libbfd.a 163 164Symptom:Obsolete intermediate files are used during compilation 165Fix: Try the following sequence of commands in the directory in question. 166 make cleandir; rm `make print-objdir`; make cleandir; make obj 167 (If you built the tree without "make obj" in the past, obsolete files 168 may remain. The command tries to clean everything up) 169 170Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type 171Fix: Rebuild and install usr.bin/menuc 172