build system overhaul
diff --git a/findutils/Config.in b/findutils/Config.in
index 12387a4..5a4476a 100644
--- a/findutils/Config.in
+++ b/findutils/Config.in
@@ -5,152 +5,152 @@
 
 menu "Finding Utilities"
 
-config CONFIG_FIND
+config FIND
 	bool "find"
 	default n
 	help
 	  find is used to search your system to find specified files.
 
-config CONFIG_FEATURE_FIND_PRINT0
+config FEATURE_FIND_PRINT0
 	bool "Enable -print0 option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Causes output names to be separated by a null character
 	  rather than a newline.  This allows names that contain
 	  newlines and other whitespace to be more easily
 	  interpreted by other programs.
 
-config CONFIG_FEATURE_FIND_MTIME
+config FEATURE_FIND_MTIME
 	bool "Enable modified time matching (-mtime) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Allow searching based on the modification time of
 	  files, in days.
 
-config CONFIG_FEATURE_FIND_MMIN
+config FEATURE_FIND_MMIN
 	bool "Enable modified time matching (-min) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Allow searching based on the modification time of
 	  files, in minutes.
 
-config CONFIG_FEATURE_FIND_PERM
+config FEATURE_FIND_PERM
 	bool "Enable permissions matching (-perm) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Enable searching based on file permissions.
 
-config CONFIG_FEATURE_FIND_TYPE
+config FEATURE_FIND_TYPE
 	bool "Enable filetype matching (-type) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Enable searching based on file type (file,
 	  directory, socket, device, etc.).
 
-config CONFIG_FEATURE_FIND_XDEV
+config FEATURE_FIND_XDEV
 	bool "Enable stay in filesystem (-xdev) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  This option will allow find to restrict searches to a single
 	  filesystem.
 
-config CONFIG_FEATURE_FIND_NEWER
+config FEATURE_FIND_NEWER
 	bool "Enable -newer option for comparing file mtimes"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Support the 'find -newer' option for finding any files which have
 	  a modified time that is more recent than the specified FILE.
 
-config CONFIG_FEATURE_FIND_INUM
+config FEATURE_FIND_INUM
 	bool "Enable inode number matching (-inum) option"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Support the 'find -inum' option for searching by inode number.
 
-config CONFIG_FEATURE_FIND_EXEC
+config FEATURE_FIND_EXEC
 	bool "Enable (-exec) option allowing execution of commands"
 	default y
-	depends on CONFIG_FIND
+	depends on FIND
 	help
 	  Support the 'find -exec' option for executing commands based upon
 	  the files matched.
 
-config CONFIG_GREP
+config GREP
 	bool "grep"
 	default n
 	help
 	  grep is used to search files for a specified pattern.
 
-config CONFIG_FEATURE_GREP_EGREP_ALIAS
+config FEATURE_GREP_EGREP_ALIAS
 	bool "Support extended regular expressions (egrep & grep -E)"
 	default y
-	depends on CONFIG_GREP
+	depends on GREP
 	help
 	  Enabled support for extended regular expressions.  Extended
 	  regular expressions allow for alternation (foo|bar), grouping,
 	  and various repetition operators.
 
-config CONFIG_FEATURE_GREP_FGREP_ALIAS
+config FEATURE_GREP_FGREP_ALIAS
 	bool "Alias fgrep to grep -F"
 	default y
-	depends on CONFIG_GREP
+	depends on GREP
 	help
 	  fgrep sees the search pattern as a normal string rather than
 	  regular expressions.
 	  grep -F is always builtin, this just creates the fgrep alias.
 
-config CONFIG_FEATURE_GREP_CONTEXT
+config FEATURE_GREP_CONTEXT
 	bool "Enable before and after context flags (-A, -B and -C)"
 	default y
-	depends on CONFIG_GREP
+	depends on GREP
 	help
 	  Print the specified number of leading (-B) and/or trailing (-A)
 	  context surrounding our matching lines.
 	  Print the specified number of context lines (-C).
 
-config CONFIG_XARGS
+config XARGS
 	bool "xargs"
 	default n
 	help
 	  xargs is used to execute a specified command on
 	  every item from standard input.
 
-config CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION
+config FEATURE_XARGS_SUPPORT_CONFIRMATION
 	bool "Enable prompt and confirmation option -p"
 	default n
-	depends on CONFIG_XARGS
+	depends on XARGS
 	help
 	  Support prompt the user about whether to run each command
 	  line and read a line from the terminal.
 
-config CONFIG_FEATURE_XARGS_SUPPORT_QUOTES
+config FEATURE_XARGS_SUPPORT_QUOTES
 	bool "Enable support single and double quotes and backslash"
 	default n
-	depends on CONFIG_XARGS
+	depends on XARGS
 	help
 	  Default xargs unsupport single and double quotes
 	  and backslash for can use aruments with spaces.
 
-config CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT
+config FEATURE_XARGS_SUPPORT_TERMOPT
 	bool "Enable support options -x"
 	default n
-	depends on CONFIG_XARGS
+	depends on XARGS
 	help
 	  Enable support exit if the size (see the -s or -n option)
 	  is exceeded.
 
-config CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM
+config FEATURE_XARGS_SUPPORT_ZERO_TERM
 	bool "Enable null terminated option -0"
 	default n
-	depends on CONFIG_XARGS
+	depends on XARGS
 	help
 	  Enable input filenames are terminated by a null character
 	  instead of by whitespace, and the quotes and backslash