config.in

Axis 221 camera embedded programing interface

	bool "Enable '/etc/TZ' file support to set a default timezone (uClibc-specific)"
	default y
	help
	  Answer Y to enable the setting of a default timezone for uClibc.

	  Ordinarily, uClibc gets the timezone information exclusively from the
	  'TZ' environment variable.  In particular, there is no support for
	  the zoneinfo directory tree or the /etc/timezone file used by glibc.

	  With this option enabled, uClibc will use the value stored in the
	  file '/etc/TZ' (default path) to obtain timezone information if the
	  'TZ' environment variable is missing or has an invalid value.  The
	  file consists of a single line (newline required) of text describing
	  the timezone in the format specified for the TZ environment variable.

	  Simply doing 'echo CST6CDT > /etc/TZ' is enough to create a valid file.
	  See
	  http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html
	  for details on valid settings of 'TZ'.

	  Most people will answer Y.

config UCLIBC_HAS_TZ_FILE_READ_MANY
	bool "Repeatedly read the '/etc/TZ' file"
	depends on UCLIBC_HAS_TZ_FILE
	default y
	help
	  Answer Y to enable repeated reading of the '/etc/TZ' file even after
	  a valid value has been read.  This incurs the overhead of an open/read/close
	  for each tzset() call (explicit or implied).  However, setting this
	  will allows applications to update their timezone information if the contents
	  of the file change.

	  Most people will answer Y.

config UCLIBC_TZ_FILE_PATH
	string "Path to the 'TZ' file for setting the global timezone"
	depends on UCLIBC_HAS_TZ_FILE
	default "/etc/TZ"
	help
	  This is the path to the 'TZ' file.

	  Most people will use the default of '/etc/TZ'.

endmenu

menu "Advanced Library Settings"

config UCLIBC_PWD_BUFFER_SIZE
	int "Buffer size for getpwnam() and friends"
	default 256
	help
	  This sets the value of the buffer size for getpwnam() and friends.
	  By default, this is 256. (For reference, glibc uses 1024).
	  The value can be found using sysconf() with the _SC_GETPW_R_SIZE_MAX
	  parameter.

config UCLIBC_GRP_BUFFER_SIZE
	int "Buffer size for getgrnam() and friends"
	default 256
	help
	  This sets the value of the buffer size for getgrnam() and friends.
	  By default, this is 256. (For reference, glibc uses 1024).
	  The value can be found using sysconf() with the _SC_GETGR_R_SIZE_MAX
	  parameter.

endmenu

menu "Networking Support"

config UCLIBC_HAS_IPV6
	bool "IP version 6 Support"
	default n
	help
	  If you want to include support for the next version of the Internet
	  Protocol (IP version 6) then answer Y.
	  
	  Most people should answer N.

config UCLIBC_HAS_RPC
	bool "Remote Procedure Call (RPC) support"
	default n
	help
	  If you want to include RPC support, enable this.  RPC is rarely used 
	  for anything except for the NFS filesystem.  Unless you plan to use NFS, 
	  you can probably leave this set to N and save some space.  If you need
	  to use NFS then you should answer Y.

config UCLIBC_HAS_FULL_RPC
	bool "Full RPC support"
	depends on UCLIBC_HAS_RPC
	default y if !HAVE_SHARED
	help
	  Normally we enable just enough RPC support for things like rshd and
	  nfs mounts to work.  If you find you need the rest of the RPC stuff, 
	  then enable this option.  Most people can safely answer N.

endmenu


menu "String and Stdio Support"

config UCLIBC_HAS_STRING_GENERIC_OPT
	bool "Use glibc generic string functions"
	default y
	help
	  Answer Y to use the (tweaked) glibc generic string functions.
	  In general, they are faster (but 3-5K larger) than the base
	  uClibc string functions which are optimized solely for size.

	  Many people will answer Y.  

config UCLIBC_HAS_STRING_ARCH_OPT
	bool "Use arch-specific string functions"
	default y
	help
	  Answer Y to use the arch-specific string functions instead of the
	  base uClibc versions, which are optimized exclusively for size.

	  Most people will answer Y, as this has been default behavior
	  for some time.

config UCLIBC_HAS_CTYPE_TABLES
	bool "Use Table Versions Of 'ctype.h' Functions."
	default y
	help
	  Answer Y to use table versions of the 'ctype.h' functions.
	  While the non-table versions are often smaller when building
	  staticly linked apps, they work only in stub locale mode.
	  
	  Most people will answer Y.

config UCLIBC_HAS_CTYPE_SIGNED
	bool "Support Signed Characters In 'ctype.h' Functions."
	depends UCLIBC_HAS_CTYPE_TABLES
	default y
	help
	  Answer Y to enable support for passing signed char values to
	  the 'ctype.h' functions.  ANSI/ISO C99 and SUSv3 specify that
	  these functions are only defined for unsigned char values and
	  EOF.  However, glibc allows negative signed char values as well
	  in order to support 'broken old programs'.

	  Most people will answer Y.

choice
	prompt "ctype argument checking"
	depends UCLIBC_HAS_CTYPE_TABLES
	default UCLIBC_HAS_CTYPE_UNSAFE
	help
	  Please select the invalid arg behavior you want for the 'ctype' functions.

	  The 'ctype' functions are now implemented using table lookups, with
	  the arg being the index.  This can result in incorrect memory accesses
	  or even segfaults for args outside of the allowed range.

	  NOTE: This only affects the 'ctype' _functions_.  It does not affect
	  the macro implementations.

config UCLIBC_HAS_CTYPE_UNSAFE
	bool "Do not check -- unsafe"

config UCLIBC_HAS_CTYPE_CHECKED
	bool "Detect and handle appropriately"

config UCLIBC_HAS_CTYPE_ENFORCED
	bool "Issue a diagnostic and abort()"

endchoice


config UCLIBC_HAS_WCHAR
	bool "Wide Character Support"
	default n
	help
	  Answer Y to enable wide character support.  This will make uClibc 
	  much larger.  It is also currently required for locale support.

	  Most people will answer N.

config UCLIBC_HAS_LOCALE
	bool "Locale Support"
	select UCLIBC_HAS_WCHAR
	select UCLIBC_HAS_CTYPE_TABLES
	default n
	help
	  uClibc now has full ANSI/ISO C99 locale support (except for
	  wcsftime() and collating items in regex).  Be aware that enabling
	  this option will make uClibc much larger.  
	  
	  Enabling UCLIBC_HAS_LOCALE with the default set of supported locales
	  (169 UTF-8 locales, and 144 locales for other codesets) will enlarge
	  uClibc by around 300k.  You can reduce this size by building your own
	  custom set of locate data (see extra/locale/LOCALES for details).

	  uClibc's locale support is still under development.  For example,
	  codesets using shift states are not currently supported.  Support is
	  planned in the next iteration of locale support.

	  Answer Y to enable locale support.  Most people will answer N.

config UCLIBC_PREGENERATED_LOCALE_DATA
	bool "Use Pre-generated Locale Data"
	depends on UCLIBC_HAS_LOCALE
	default n
	help
	  If you are selective and only want locale data for a few particular
	  locales, or you enjoy pain, or you are a rabid do-it-yourself sort of
	  person, you can turn this option off and manually walk through the
	  mostly undocumented procedure needed to generate your own locale
	  data.

	  Mere mortals will answer Y and use the default set of pregenerated
	  locale data, which supports 169 UTF-8 locales, and 144 locales for
	  other codesets (for the complete list see extra/locale/LOCALES).

config UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA
	bool "Automagically Download the Pre-generated Locale Data (if necessary)"
	depends on UCLIBC_PREGENERATED_LOCALE_DATA
	default n
	help
	  If you would like the build process to use 'wget' to automatically
	  download the pregenerated locale data, enable this option.  Otherwise
	  you will need to obtain the locale data yourself from:
		http://www.uclibc.org/downloads/uClibc-locale-030818.tgz
	  and place the uClibc-locale-030818.tgz tarball in the extra/locale/
	  directory.

	  Go ahead and make life easy for yourself... Answer Y.

config UCLIBC_HAS_XLOCALE
	bool "Extended Locale Support (experimental/incomplete)"
	depends on UCLIBC_HAS_LOCALE
	default n
	help
	  Answer Y to enable extended locale support similar to that provided
	  by glibc.  This is primarily intended to support libstd++ functionality.
	  However, it also allows thread-specific locale selection via uselocale().

	  Most people will answer N.

config UCLIBC_HAS_HEXADECIMAL_FLOATS
	bool "Support hexadecimal float notation"
	depends UCLIBC_HAS_CTYPE_TABLES
	depends on UCLIBC_HAS_FLOATS
	default n
	help
	  Answer Y to enable support for hexadecimal float notation in the
	  (wchar and) char string to floating point conversion functions, as
	   well as support for the %a and %A conversion specifiers in the
	   *printf() and *scanf() functions.

	  Most people will answer N.

config UCLIBC_HAS_GLIBC_DIGIT_GROUPING
	bool "Support glibc's \"'\" flag for allowing locale-specific digit grouping"
	depends on UCLIBC_HAS_LOCALE
	depends on UCLIBC_HAS_FLOATS
	default n
	help
	  Answer Y to enable support for glibc's \"'\" flag for allowing locale-specific
	  digit grouping in base 10 integer conversions and appropriate floating point
	  conversions in the *printf() and *scanf() functions.

	  Most people will answer N.

config UCLIBC_HAS_SCANF_LENIENT_DIGIT_GROUPING
	bool "Do not require digit grouping when the \"'\" flag is specified"
	depends on UCLIBC_HAS_GLIBC_DIGIT_GROUPING
	default y
	help
	  Answer Y to make digit grouping optional when the \"'\" flag is specified.
	  This is the standard glibc behavior.  If the initial string of digits
	  exceeds the maximum group number, the input will be treated as a normal
	  non-grouped number.

	  Most people will answer N.

config UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
	bool "Support glibc's register_printf_function() (glibc-compat)"
	depends on !USE_OLD_VFPRINTF
	default n
	help
	  Answer Y to support glibc's register_printf_function() to allow an
	  application to add its own printf conversion specifiers.

	  NOTE: This implementation limits the number or registered specifiers to 10.
	  NOTE: This implementation requires new conversion specifiers to be ASCII
                characters (0-0x7f).  This is to avoid problems with processing
                format strings in locales with different multibyte conversions.

	  Most people will answer N.

config USE_OLD_VFPRINTF
	bool "Use the old vfprintf implementation"
	depends on !UCLIBC_HAS_WCHAR
	default n
	help
	  Set to true to use the old vfprintf instead of the new.  This is roughly
	  C89 compliant with some extensions, and is much smaller.  However, it does
	  not support wide chars, positional args, or glibc custom printf specifiers.

	  Most people will answer N.

config UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS
	int "Maximum number of positional args.  Either 0 or >= 9."
	depends on !USE_OLD_VFPRINTF
	default 9
	help
	  Set the maximum number of positional args supported by the printf/scanf
	  functions.  The Single Unix Specification Version 3 requires a minimum
	  value of 9.  Setting this to a value lower than 9 will disable positional
	  arg support and cause the NL_ARGMAX macro in limits.h to be #undef'd.
	  WARNING!  The workspace to support positional args is currently allocated
	  on the stack.  You probably don't want to set this to too high a value.

	  Most people will answer 9.


config UCLIBC_HAS_SCANF_GLIBC_A_FLAG
	bool "Support glibc's 'a' flag for scanf string conversions"
	default n
	help
	  NOTE!!!  Currently Not Implemented!!! Just A Place Holder!!  NOTE!!!

	  Answer Y to enable support for glibc's 'a' flag for the scanf string
	  conversions '%s', '%[', '%ls', '%l[', and '%S'.  This is used to
	  auto-allocate sufficient memory to hold the data retrieved.

	  Most people will answer N.

choice
	prompt "Stdio buffer size"
	default UCLIBC_HAS_STDIO_BUFSIZ_4096
	help
	  Please select a value for BUFSIZ.  This will be used by the
	  stdio subsystem as the default buffer size for a file, and
	  affects fopen(), setvbuf(), etc.

	  NOTE: Setting this to 'none' will disable buffering completely.
	  However, BUFSIZ will still be defined in stdio.h as 256 because
	  many applications use this value.

config UCLIBC_HAS_STDIO_BUFSIZ_NONE
	bool "none (WARNING - BUFSIZ will be 256 in stdio.h)"
	depends !UCLIBC_HAS_WCHAR

config UCLIBC_HAS_STDIO_BUFSIZ_256
	bool "256 (minimum ANSI/ISO C99 value)"

config UCLIBC_HAS_STDIO_BUFSIZ_512
	bool "512"

config UCLIBC_HAS_STDIO_BUFSIZ_1024
	bool "1024"

config UCLIBC_HAS_STDIO_BUFSIZ_2048
	bool "2048"

config UCLIBC_HAS_STDIO_BUFSIZ_4096
	bool "4096"

config UCLIBC_HAS_STDIO_BUFSIZ_8192
	bool "8192"

# If you add more choices, you will need to update uClibc_stdio.h.

endchoice

choice
	prompt "Stdio builtin buffer size (uClibc-specific)"
	depends !UCLIBC_HAS_STDIO_BUFSIZ_NONE
	default UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE
	help
	  When a FILE is created with fopen(), an attempt is made to allocate
	  a BUFSIZ buffer for it.  If the allocation fails, fopen() will still
	  succeed but the FILE will be unbuffered.

	  This option adds a small amount of space to each FILE to act as an
	  emergency buffer in the event of a buffer allocation failure.

	  Most people will answer None.

config UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE
	bool "None"

config UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4
	bool "4"

config UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8
	bool "8"

# If you add more choices, you will need to update uClibc_stdio.h.

endchoice

config UCLIBC_HAS_STDIO_GETC_MACRO
	bool "Provide a macro version of getc()"
	depends !UCLIBC_HAS_STDIO_BUFSIZ_NONE
	default y
	help
	  Provide a macro version of getc().

	  Most people will answer Y.

config UCLIBC_HAS_STDIO_PUTC_MACRO
	bool "Provide a macro version of putc()"
	depends !UCLIBC_HAS_STDIO_BUFSIZ_NONE
	default y
	help
	  Provide a macro version of putc().

	  Most people will answer Y.

config UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION
	bool "Support auto-r/w transition"
	default y
	help
	  Answer Y to enable the stdio subsystem to automaticly transition
	  between reading and writing.  This relaxes the ANSI/ISO C99 requirement:

	  When a file is opened with update mode ('+' as the second or third character
	  in the list of mode argument values), both input and output may be performed
	  on the associated stream. However, output shall not be directly followed by
	  input without an intervening call to the fflush function or to a file
	  positioning function (fseek, fsetpos, or rewind), and input shall not be
	  directly followed by output without an intervening call to a file positioning
	  function, unless the input operation encounters end璷f璮ile.

	  Most people will answer Y.

config UCLIBC_HAS_FOPEN_LARGEFILE_MODE
	bool "Support an fopen() 'F' flag for large file mode (uClibc-specific)"
	depends on UCLIBC_HAS_LFS
	default n
	help