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The Bash configure
has a number of `--enable-feature'
options, where feature indicates an optional part of Bash.
There are also several `--with-package' options,
where package is something like `bash-malloc' or `purify'.
To turn off the default use of a package, use
`--without-package'. To configure Bash without a feature
that is enabled by default, use `--disable-feature'.
Here is a complete list of the `--enable-' and
`--with-' options that the Bash configure
recognizes.
--with-afs
--with-bash-malloc
malloc
in `lib/malloc/malloc.c'. This is not the same
malloc
that appears in GNU libc, but an older version
derived from the 4.2 BSD malloc
. This malloc
is
very fast, but wastes some space on each allocation.
This option is enabled by default.
The `NOTES' file contains a list of systems for
which this should be turned off, and configure
disables this
option automatically for a number of systems.
--with-curses
--with-gnu-malloc
--with-bash-malloc
.
--with-installed-readline[=PREFIX]
yes
or not
supplied, configure
uses the values of the make variables
includedir
and libdir
, which are subdirectories of prefix
by default, to find the installed version of Readline if it is not in
the standard system include and library directories.
If PREFIX is no
, Bash links with the version in
`lib/readline'.
If PREFIX is set to any other value, configure
treats it as
a directory pathname and looks for
the installed version of Readline in subdirectories of that directory
(include files in PREFIX/include
and the library in
PREFIX/lib
).
--with-purify
--enable-minimal-config
There are several `--enable-' options that alter how Bash is compiled and linked, rather than changing run-time features.
--enable-largefile
--enable-profiling
gprof
each time it is executed.
--enable-static-link
gcc
is being used.
This could be used to build a version to use as root's shell.
The `minimal-config' option can be used to disable all of the following options, but it is processed first, so individual options may be enabled using `enable-feature'.
All of the following options except for `disabled-builtins' and `xpg-echo-default' are enabled by default, unless the operating system does not provide the necessary support.
--enable-alias
alias
and unalias
builtins (see section 6.6 Aliases).
--enable-arith-for-command
for
command
that behaves like the C language for
statement
(see section 3.2.4 Looping Constructs).
--enable-array-variables
--enable-bang-history
csh
-like history substitution
(see section 9.3 History Expansion).
--enable-brace-expansion
csh
-like brace expansion
( b{a,b}c
==> bac bbc
).
See 3.5.1 Brace Expansion, for a complete description.
--enable-command-timing
time
as a reserved word and for
displaying timing statistics for the pipeline following time
(see section 3.2.2 Pipelines).
This allows pipelines as well as shell builtins and functions to be timed.
--enable-cond-command
[[
conditional command
(see section 3.2.5 Conditional Constructs).
--enable-directory-stack
csh
-like directory stack and the
pushd
, popd
, and dirs
builtins
(see section 6.8 The Directory Stack).
--enable-disabled-builtins
xxx
has been disabled using `enable -n xxx'.
See 4.2 Bash Builtin Commands, for details of the builtin
and
enable
builtin commands.
--enable-dparen-arithmetic
((...))
command
(see section 3.2.5 Conditional Constructs).
--enable-extended-glob
--enable-help-builtin
help
builtin, which displays help on shell builtins and
variables (see section 4.2 Bash Builtin Commands).
--enable-history
fc
and history
builtin commands (see section 9.1 Bash History Facilities).
--enable-job-control
--enable-net-redirections
/dev/tcp/host/port
and
/dev/udp/host/port
when used in redirections (see section 3.6 Redirections).
--enable-process-substitution
--enable-prompt-string-decoding
$PS1
, $PS2
, $PS3
, and $PS4
prompt
strings. See 6.9 Controlling the Prompt, for a complete list of prompt
string escape sequences.
--enable-progcomp
--enable-readline
--enable-restricted
rbash
, enters a restricted mode. See
6.10 The Restricted Shell, for a description of restricted mode.
--enable-select
select
builtin, which allows the generation of simple
menus (see section 3.2.5 Conditional Constructs).
--enable-usg-echo-default
--enable-xpg-echo-default
.
--enable-xpg-echo-default
echo
builtin expand backslash-escaped characters by default,
without requiring the `-e' option.
This sets the default value of the xpg_echo
shell option to on
,
which makes the Bash echo
behave more like the version specified in
the Single Unix Specification, version 2.
See section 4.2 Bash Builtin Commands, for a description of the escape sequences that
echo
recognizes.
The file `config-top.h' contains C Preprocessor
`#define' statements for options which are not settable from
configure
.
Some of these are not meant to be changed; beware of the consequences if
you do.
Read the comments associated with each definition for more
information about its effect.
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