Update the default uClibc config for 0.9.21

MALLOC_GLIBC_COMPAT=y

UCLIBC_DYNAMIC_ATEXIT=y

HAS_SHADOW=y

UCLIBC_HAS_REGEX=y

# UCLIBC_HAS_WORDEXP is not set

UNIX98PTY_ONLY=y

ASSUME_DEVPTS=y

UCLIBC_HAS_TM_EXTENSIONS=y

UCLIBC_HAS_TZ_CACHING=y

UCLIBC_HAS_TZ_FILE=y

UCLIBC_HAS_TZ_FILE_READ_MANY=y

UCLIBC_TZ_FILE_PATH="/etc/TZ"

#

# Networking Support

#

# String and Stdio Support

#

UCLIBC_HAS_CTYPE_TABLES=y

UCLIBC_HAS_CTYPE_SIGNED=y

# UCLIBC_HAS_CTYPE_UNSAFE is not set

UCLIBC_HAS_CTYPE_CHECKED=y

# UCLIBC_HAS_CTYPE_ENFORCED is not set

UCLIBC_HAS_WCHAR=y

# UCLIBC_HAS_LOCALE is not set

UCLIBC_HAS_SCANF_GLIBC_A_FLAG=y

UCLIBC_HAS_HEXADECIMAL_FLOATS=y

# USE_OLD_VFPRINTF is not set

UCLIBC_HAS_GLIBC_CUSTOM_PRINTF=y

UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS=9

UCLIBC_HAS_TZ_CACHING=y

UCLIBC_HAS_TZ_FILE=y

UCLIBC_TZ_FILE_PATH="/etc/TZ"

UCLIBC_HAS_TZ_FILE_READ_MANY=y

UCLIBC_HAS_SCANF_GLIBC_A_FLAG=y

# UCLIBC_HAS_STDIO_BUFSIZ_NONE is not set

UCLIBC_HAS_STDIO_BUFSIZ_256=y

# UCLIBC_HAS_STDIO_BUFSIZ_512 is not set

# UCLIBC_HAS_STDIO_BUFSIZ_2048 is not set

# UCLIBC_HAS_STDIO_BUFSIZ_4096 is not set

# UCLIBC_HAS_STDIO_BUFSIZ_8192 is not set

UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y

# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set

# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set

UCLIBC_HAS_STDIO_GETC_MACRO=y

UCLIBC_HAS_STDIO_PUTC_MACRO=y

UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y

# UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set

UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE=y

UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y

UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y

# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set

# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set

UCLIBC_HAS_PRINTF_M_SPEC=y

UCLIBC_HAS_GLIBC_CUSTOM_PRINTF=y

UCLIBC_HAS_ERRNO_MESSAGES=y

# UCLIBC_HAS_SYS_ERRLIST is not set

UCLIBC_HAS_SIGNUM_MESSAGES=y

# UCLIBC_HAS_SYS_SIGLIST is not set

UCLIBC_HAS_GNU_GETOPT=y

#

# Big and Tall

#

UCLIBC_HAS_REGEX=y

# UCLIBC_HAS_WORDEXP is not set

# UCLIBC_HAS_FTW is not set

UCLIBC_HAS_GLOB=y

#

# Library Installation Options

DEVEL_TOOL_PREFIX="$(DEVEL_PREFIX)/usr"

#

# uClibc hacking options

# uClibc development/debugging options

#

# DODEBUG is not set

# DOASSERTS is not set

# SUPPORT_LD_DEBUG is not set

# SUPPORT_LD_DEBUG_EARLY is not set

# UCLIBC_MJN3_ONLY is not set