X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=shell%2FConfig.in;h=57969f02cdf00f054573a2508ac64becdcb78264;hb=e18255d1dadc9686daa328fa121423b47d2f6af4;hp=afc42966776e83ff7bb49e34e74934e22a76568d;hpb=b975febeea845d3731bbed46f8936f352ffc3be6;p=oweals%2Fbusybox.git diff --git a/shell/Config.in b/shell/Config.in index afc429667..57969f02c 100644 --- a/shell/Config.in +++ b/shell/Config.in @@ -84,22 +84,6 @@ config ASH_ALIAS help Enable alias support in the ash shell. -config ASH_MATH_SUPPORT - bool "Posix math support" - default y - depends on ASH - help - Enable math support in the ash shell. - -config ASH_MATH_SUPPORT_64 - bool "Extend Posix math support to 64 bit" - default n - depends on ASH_MATH_SUPPORT - help - Enable 64-bit math support in the ash shell. This will make - the shell slightly larger, but will allow computation with very - large numbers. - config ASH_GETOPTS bool "Builtin getopt to parse positional parameters" default n @@ -152,14 +136,14 @@ config ASH_OPTIMIZE_FOR_SIZE Compile ash for reduced size at the price of speed. config ASH_RANDOM_SUPPORT - bool "Pseudorandom generator and variable $RANDOM" + bool "Pseudorandom generator and $RANDOM variable" default n depends on ASH help Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. You can reset the generator by using a specified start value. - After "unset RANDOM" then generator will switch off and this + After "unset RANDOM" the generator will switch off and this variable will no longer have special treatment. config ASH_EXPAND_PRMT @@ -167,7 +151,7 @@ config ASH_EXPAND_PRMT default n depends on ASH help - "PS#" may be contain volatile content, such as backquote commands. + "PS#" may contain volatile content, such as backquote commands. This option recreates the prompt string from the environment variable each time it is displayed. @@ -175,16 +159,15 @@ config HUSH bool "hush" default n help - hush is a very small shell (just 18k) and it has fairly complete - Bourne shell grammar. It even handles all the normal flow control - options such as if/then/elif/else/fi, for/in/do/done, while loops, - case/esac. + hush is a small shell (22k). It handles the normal flow control + constructs such as if/then/elif/else/fi, for/in/do/done, while loops, + case/esac. Redirections, here documents, $((arithmetic)) + and functions are supported. - It uses only vfork, so it can be used on no-mmu systems. + It will compile and work on no-mmu systems. - It does not handle select, functions, here documents ( << - word ), arithmetic expansion, aliases, brace expansion, tilde - expansion, &> and >& redirection of stdout+stderr, etc. + It does not handle select, aliases, brace expansion, + tilde expansion, &>file and >&file redirection of stdout+stderr. config HUSH_HELP bool "help builtin" @@ -234,7 +217,6 @@ config HUSH_LOOPS depends on HUSH help Enable for, while and until loops in hush. - As of 2008-07, break and continue statements are not supported. config HUSH_CASE bool "Support case ... esac statement" @@ -243,6 +225,20 @@ config HUSH_CASE help Enable case ... esac statement in hush. +400 bytes. +config HUSH_FUNCTIONS + bool "Support funcname() { commands; } syntax" + default n + depends on HUSH + help + Enable support for shell functions in hush. +800 bytes. + +config HUSH_EXPORT_N + bool "Support export '-n' option" + default n + depends on HUSH + help + Enable support for export '-n' option in hush. It is a bash extension. + config LASH bool "lash (deprecated: aliased to hush)" default n @@ -254,19 +250,36 @@ config MSH bool "msh (deprecated: please use hush)" default n help - The minix shell (adds just 30k) is quite complete and handles things - like for/do/done, case/esac and all the things you expect a Bourne - shell to do. It is not always pedantically correct about Bourne - shell grammar (try running the shell testscript "tests/sh.testcases" - on it and compare vs bash) but for most things it works quite well. - It uses only vfork, so it can be used on uClinux systems. - msh is deprecated and will be removed, please migrate to hush. If there is a feature msh has but hush does not, please let us know. +# The minix shell (adds just 30k) is quite complete and handles things +# like for/do/done, case/esac and all the things you expect a Bourne +# shell to do. It is not always pedantically correct about Bourne +# shell grammar (try running the shell testscript "tests/sh.testcases" +# on it and compare vs bash) but for most things it works quite well. +# It uses only vfork, so it can be used on uClinux systems. + + comment "Bourne Shell Options" depends on MSH || LASH || HUSH || ASH +config SH_MATH_SUPPORT + bool "POSIX math support" + default y + depends on ASH || HUSH + help + Enable math support in the shell via $((...)) syntax. + +config SH_MATH_SUPPORT_64 + bool "Extend POSIX math support to 64 bit" + default n + depends on SH_MATH_SUPPORT + help + Enable 64-bit math support in the shell. This will make the shell + slightly larger, but will allow computation with very large numbers. + This is not in POSIX, so do not rely on this in portable code. + config FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" default n