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Platform-Specific Configuration and Operation Notes [somewhat dated]
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====================================================================
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1. configure --without-gnu-malloc on:
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alpha running OSF/1, Linux, or NetBSD (malloc needs 8-byte alignment;
|
|
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bash malloc has 8-byte alignment now, but I have no alphas to test on)
|
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next running NeXT/OS; machines running Openstep
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all machines running SunOS YP code: SunOS4, SunOS5, HP/UX, if you
|
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have problems with username completion or tilde expansion for
|
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usernames found via YP/NIS
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linux (optional, but don't do it if you're using Doug Lea's malloc)
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QNX 4.2
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other OSF/1 machines (KSR/1, HP, IBM AIX/ESA)
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AIX
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sparc SVR4, SVR4.2 (ICL reference port)
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DG/UX
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Cray
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Haiku OS
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NetBSD/sparc (malloc needs 8-byte alignment; bash malloc has 8-byte
|
|
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alignment now, but I have no NetBSD machines to test on)
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BSD/OS 2.1, 3.x if you want to use loadable builtins
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Motorola m68k machines running System V.3. There is a file descriptor
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leak caused by using the bash malloc because closedir(3) needs to read
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freed memory to find the file descriptor to close
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2. Configure using shlicc2 on BSD/OS 2.1 and BSD/OS 3.x to use loadable
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builtins
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3. Bash cannot be built in a directory separate from the source directory
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using configure --srcdir=... unless the version of `make' you're using
|
|
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does $VPATH handling right. The script support/mkclone can be used to
|
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create a `build tree' using symlinks to get around this.
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4. I've had reports that username completion (as well as tilde expansion
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and \u prompt expansion) does not work on IRIX 5.3 when linking with
|
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-lnsl. This is only a problem when you're running NIS, since
|
|
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apparently -lnsl supports only /etc/passwd and not the NIS functions
|
|
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for retrieving usernames and passwords. Editing the Makefile after
|
|
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configure runs and removing the `-lnsl' from the assignment to `LIBS'
|
|
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fixes the problem.
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5. There is a problem with the `makewhatis' script in older (pre-7.0)
|
|
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versions of Red Hat Linux. Running `makewhatis' with bash-2.0 or
|
|
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later versions results in error messages like this:
|
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/usr/sbin/makewhatis: cd: manpath: No such file or directory
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/usr/sbin/makewhatis: manpath/whatis: No such file or directory
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|
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chmod: manpath/whatis: No such file or directory
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|
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/usr/sbin/makewhatis: cd: catpath: No such file or directory
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|
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/usr/sbin/makewhatis: catpath/whatis: No such file or directory
|
|
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chmod: catpath/whatis: No such file or directory
|
|
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|
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The problem is with `makewhatis'. Red Hat (and possibly other
|
|
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Linux distributors) uses a construct like this in the code:
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eval path=$"$pages"path
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|
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to do indirect variable expansion. This `happened to work' in
|
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bash-1.14 and previous versions, but that was more an accident
|
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of implementation than anything else -- it was never supported
|
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and certainly is not portable.
|
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|
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Bash-2.0 has a new feature that gives a new meaning to $"...".
|
|
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This is explained more completely in item 1 in the COMPAT file.
|
|
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|
|
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The three lines in the `makewhatis' script that need to be changed
|
|
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look like this:
|
|
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|
|
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eval $topath=$"$topath":$name
|
|
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[...]
|
|
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eval path=$"$pages"path
|
|
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[...]
|
|
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eval path=$"$pages"path
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|
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|
|
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The portable way to write this code is
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|
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eval $topath="\$$topath":$name
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eval path="\$$pages"path
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|
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eval path="\$$pages"path
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|
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|
|
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You could also experiment with another new bash feature: ${!var}.
|
|
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This does indirect variable expansion, making the use of eval
|
|
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unnecessary.
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|
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6. There is a problem with syslogd on many Linux distributions (Red Hat
|
|
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and Slackware are two that I have received reports about). syslogd
|
|
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sends a SIGINT to its parent process, which is waiting for the daemon
|
|
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to finish its initialization. The parent process then dies due to
|
|
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the SIGINT, and bash reports it, causing unexpected console output
|
|
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while the system is booting that looks something like
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|
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|
|
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starting daemons: syslogd/etc/rc.d/rc.M: line 29: 38 Interrupt ${NET}/syslogd
|
|
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|
|
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Bash-2.0 reports events such as processes dying in scripts due to
|
|
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signals when the standard output is a tty. Bash-1.14.x and previous
|
|
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versions did not report such events.
|
|
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|
|
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This should probably be reported as a bug to whatever Linux distributor
|
|
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people see the problem on. In my opinion, syslogd should be changed to
|
|
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use some other method of communication, or the wrapper function (which
|
|
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appeared to be `daemon' when I looked at it some time ago) or script
|
|
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(which appeared to be `syslog') should catch SIGINT, since it's an
|
|
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expected event, and exit cleanly.
|
|
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|
|
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7. Several people have reported that `dip' (a program for SLIP/PPP
|
|
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on Linux) does not work with bash-2.0 installed as /bin/sh.
|
|
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|
|
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I don't run any Linux boxes myself, and do not have the dip
|
|
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code handy to look at, but the `problem' with bash-2.0, as
|
|
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it has been related to me, is that bash requires the `-p'
|
|
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option to be supplied at invocation if it is to run setuid
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|
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or setgid.
|
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|
|
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This means, among other things, that setuid or setgid programs
|
|
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which call system(3) (a horrendously bad practice in any case)
|
|
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relinquish their setuid/setgid status in the child that's forked
|
|
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to execute /bin/sh.
|
|
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|
|
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The following is an *unofficial* patch to bash-2.0 that causes it
|
|
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to not require `-p' to run setuid or setgid if invoked as `sh'.
|
|
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It has been reported to work on Linux. It will make your system
|
|
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vulnerable to bogus system(3) calls in setuid executables.
|
|
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|
|
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--- ../bash-2.0.orig/shell.c Wed Dec 18 14:16:30 1996
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|
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+++ shell.c Fri Mar 7 13:12:03 1997
|
|
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@@ -347,7 +347,7 @@
|
|
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if (posixly_correct)
|
|
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posix_initialize (posixly_correct);
|
|
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|
|
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- if (running_setuid && privileged_mode == 0)
|
|
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+ if (running_setuid && privileged_mode == 0 && act_like_sh == 0)
|
|
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disable_priv_mode ();
|
|
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|
|
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/* Need to get the argument to a -c option processed in the
|
|
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|
|
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8. Some people have asked about binding all of the keys in a PC-keyboard-
|
|
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style numeric keypad to readline functions. Here's something I
|
|
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received from the gnu-win32 list that may help. Insert the following
|
|
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lines into ~/.inputrc:
|
|
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|
|
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# home key
|
|
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"\e[1~":beginning-of-line
|
|
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# insert key
|
|
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"\e[2~":kill-whole-line
|
|
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# del key
|
|
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"\e[3~":delete-char
|
|
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# end key
|
|
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"\e[4~":end-of-line
|
|
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# pgup key
|
|
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"\e[5~":history-search-forward
|
|
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# pgdn key
|
|
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"\e[6~":history-search-backward
|
|
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|
|
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9. Hints for building under Minix 2.0 (Contributed by Terry R. McConnell,
|
|
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<tmc@barnyard.syr.edu>)
|
|
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|
|
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The version of /bin/sh distributed with Minix is not up to the job of
|
|
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running the configure script. The easiest solution is to swap /bin/sh
|
|
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with /usr/bin/ash. Then use chmem(1) to increase the memory allocated
|
|
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to /bin/sh. The following settings are known to work:
|
|
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|
|
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text data bss stack memory
|
|
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63552 9440 3304 65536 141832 /bin/sh
|
|
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|
|
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If you have problems with make or yacc it may be worthwhile first to
|
|
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install the GNU versions of these utilities before attempting to build
|
|
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bash. (As of this writing, all of these utilities are available for the
|
|
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i386 as pre-built binaries via anonymous ftp at math.syr.edu in the
|
|
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pub/mcconnell/minix directory. Note that the GNU version of yacc is called
|
|
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bison.)
|
|
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|
|
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Unless you want to see lots of warnings about old-style declarations,
|
|
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do LOCAL_CFLAGS=-wo; export LOCAL_CFLAGS before running configure.
|
|
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(These warnings are harmless, but annoying.)
|
|
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|
|
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configure will insist that you supply a host type. For example, do
|
|
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./configure --host=i386-pc-minix.
|
|
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|
|
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Minix does not support the system calls required for a proper
|
|
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implementation of ulimit(). The `ulimit' builtin will not be available.
|
|
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|
|
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Configure will fail to notice that many things like uid_t are indeed
|
|
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typedef'd in <sys/types.h>, because it uses egrep for this purpose
|
|
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and minix has no egrep. You could try making a link /usr/bin/egrep -->
|
|
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/usr/bin/grep. Better is to install the GNU version of grep in
|
|
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/usr/local/bin and make the link /usr/local/bin/egrep -->/usr/local/bin/grep.
|
|
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(These must be hard links, of course, since Minix does not support
|
|
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symbolic links.)
|
|
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|
|
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You will see many warnings of the form:
|
|
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warning: unknown s_type: 98
|
|
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I have no idea what this means, but it doesn't seem to matter.
|
|
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|
|
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10. If you do not have /usr/ccs/bin in your PATH when building on SunOS 5.x
|
|
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(Solaris 2), the configure script will be unable to find `ar' and
|
|
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`ranlib' (of course, ranlib is unnecessary). Make sure your $PATH
|
|
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includes /usr/ccs/bin on SunOS 5.x. This generally manifests itself
|
|
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with libraries not being built and make reporting errors like
|
|
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`cr: not found' when library construction is attempted.
|
|
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|
|
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11. Building a statically-linked bash on Solaris 2.5.x, 2.6, 7, or 8 is
|
|
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complicated.
|
|
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|
|
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It's not possible to build a completely statically-linked binary, since
|
|
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part of the C library depends on dynamic linking. The following recipe
|
|
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assumes that you're using gcc and the Solaris ld (/usr/ccs/bin/ld) on
|
|
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Solaris 2.5.x or 2.6:
|
|
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|
|
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configure --enable-static-link
|
|
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make STATIC_LD= LOCAL_LIBS='-Wl,-B,dynamic -ldl -Wl,-B,static'
|
|
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|
|
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This should result in a bash binary that depends only on libdl.so:
|
|
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|
|
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thor(2)$ ldd bash
|
|
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libdl.so.1 => /usr/lib/libdl.so.1
|
|
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|
|
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If you're using the Sun C Compiler (Sun WorkShop C Compiler version
|
|
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4.2 was what I used), you should be able to get away with using
|
|
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b5e560 |
|
|
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configure --enable-static-link
|
|
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make STATIC_LD= LOCAL_LIBS='-B dynamic -ldl -B static'
|
|
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b5e560 |
|
|
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If you want to completely remove any dependence on /usr, perhaps
|
|
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to put a copy of bash in /sbin and have it available when /usr is
|
|
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not mounted, force the build process to use the shared dl.so library
|
|
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in /etc/lib.
|
|
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b5e560 |
|
|
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For gcc, this would be something like
|
|
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b5e560 |
|
|
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b5e560 |
configure --enable-static-link
|
|
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make STATIC_LD= LOCAL_LIBS='-Wl,-B,dynamic -Wl,-R/etc/lib -ldl -Wl,-B,static'
|
|
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b5e560 |
|
|
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For Sun's WS4.2 cc
|
|
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b5e560 |
|
|
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configure --enable-static-link
|
|
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b5e560 |
make STATIC_LD= LOCAL_LIBS='-B dynamic -R/etc/lib -ldl -B static'
|
|
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b5e560 |
|
|
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seems to work, at least on Solaris 2.5.1:
|
|
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b5e560 |
|
|
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thor(2)$ ldd bash
|
|
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libdl.so.1 => /etc/lib/libdl.so.1
|
|
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b5e560 |
|
|
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b5e560 |
On Solaris 7 (Solaris 8, using the version of gcc on the free software
|
|
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CD-ROM), the following recipe appears to work for gcc:
|
|
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b5e560 |
|
|
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configure --enable-static-link
|
|
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make STATIC_LD='-Wl,-Bstatic' LOCAL_LIBS='-Wl,-Bdynamic -Wl,-R/etc/lib -ldl -Wl,-Bstatic'
|
|
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b5e560 |
|
|
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thor.ins.cwru.edu(2)$ ldd bash
|
|
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libdl.so.1 => /etc/lib/libdl.so.1
|
|
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b5e560 |
|
|
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b5e560 |
Make the analogous changes if you are running Sun's C Compiler.
|
|
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|
|
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I have received word that adding -L/etc/lib (or the equivalent
|
|
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-Wl,-L/etc/lib) might also be necessary, in addition to the -R/etc/lib.
|
|
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b5e560 |
|
|
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b5e560 |
On later versions of Solaris, it may be necessary to add -lnsl before
|
|
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b5e560 |
-ldl; statically-linked versions of bash using libnsl are not guaranteed
|
|
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b5e560 |
to work correctly on future versions of Solaris.
|
|
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b5e560 |
|
|
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12. Configuring bash to build it in a cross environment. Currently only
|
|
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b5e560 |
two native versions can be compiled this way, cygwin32 and x86 BeOS.
|
|
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b5e560 |
For BeOS, you would configure it like this:
|
|
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b5e560 |
|
|
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export RANLIB=i586-beos-ranlib
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export AR=i586-beos-ar
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export CC=i586-beos-gcc
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configure i586-beos
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Similarly for cygwin32.
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13. Bash-2.05 has reverted to the bash-2.03 behavior of honoring the current
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locale setting when processing ranges within pattern matching bracket
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expressions ([A-Z]). This is what POSIX.2 and SUSv2 specify.
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The behavior of the matcher in bash-2.05 depends on the current LC_COLLATE
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setting. Setting this variable to `C' or `POSIX' will result in the
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traditional behavior ([A-Z] matches all uppercase ASCII characters).
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Many other locales, including the en_US locale (the default on many US
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versions of Linux) collate the upper and lower case letters like this:
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AaBb...Zz
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which means that [A-Z] matches every letter except `z'.
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The portable way to specify upper case letters is [:upper:] instead of
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A-Z; lower case may be specified as [:lower:] instead of a-z.
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Look at the manual pages for setlocale(3), strcoll(3), and, if it is
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present, locale(1). If you have locale(1), you can use it to find
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your current locale information even if you do not have any of the
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LC_ variables set.
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My advice is to put
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export LC_COLLATE=C
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into /etc/profile and inspect any shell scripts run from cron for
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constructs like [A-Z]. This will prevent things like
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rm [A-Z]*
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from removing every file in the current directory except those beginning
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with `z' and still allow individual users to change the collation order.
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Users may put the above command into their own profiles as well, of course.
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14. Building on Interix (nee OpenNT), which Microsoft bought from Softway
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Systems and has seemingly abandoned (thanks to Kevin Moore for this item).
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1. cp cross-build/opennt.cache config.cache
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2. If desired, edit pathnames.h to set the values of SYS_PROFILE and
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DEFAULT_HOSTS_FILE appropriately.
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3. export CONFIG_SHELL=$INTERIX_ROOT/bin/sh
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4. ./configure --prefix=$INTERIX_ROOT/usr/local (or wherever you
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want it).
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5. make; make install; enjoy
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15. Configure with `CC=xlc' if you don't have gcc on AIX 4.2 and later
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versions. `xlc' running in `cc' mode has trouble compiling error.c.
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16. Configure --disable-multibyte on NetBSD versions (1.4 through at least
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1.6.1) that include wctype.h but do not define wctype_t.
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17. Do NOT use bison-1.75. It builds a non-working parser. The most
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obvious effect is that constructs like "for i; do echo $i; done" don't
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loop over the positional parameters.
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18. I have received reports that using -O2 with the MIPSpro results in a
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binary that fails in strange ways. Using -O1 seems to work.
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19. There is special handling to ensure the shell links against static
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versions of the included readline and history libraries on Mac OS X;
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Apple ships inadequate dynamic libreadline and libhistory "replacements"
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as standard libraries.
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20. If you're on a system like SGI Irix, and you get an error about not
|
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being able to refer to a dynamic symbol
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(ld: non-dynamic relocations refer to dynamic symbol PC), add
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-DNEED_EXTERN_PC to the LOCAL_CFLAGS variable in lib/readline/Makefile.in
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and rebuild.
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