*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
/*
* The following code uses an algorithm due to Harold Stone,
* which finds a pair of longest identical subsequences in
* 3*(number of k-candidates installed), typically about
* 6n words for files of length n.
*/
-
//config:config DIFF
-//config: bool "diff"
+//config: bool "diff (13 kb)"
//config: default y
//config: help
-//config: diff compares two files or directories and outputs the
-//config: differences between them in a form that can be given to
-//config: the patch command.
+//config: diff compares two files or directories and outputs the
+//config: differences between them in a form that can be given to
+//config: the patch command.
//config:
//config:config FEATURE_DIFF_LONG_OPTIONS
//config: bool "Enable long options"
//config: default y
//config: depends on DIFF
//config: help
-//config: This option enables support for directory and subdirectory
-//config: comparison.
-
-//kbuild:lib-$(CONFIG_DIFF) += diff.o
+//config: This option enables support for directory and subdirectory
+//config: comparison.
//applet:IF_DIFF(APPLET(diff, BB_DIR_USR_BIN, BB_SUID_DROP))
+//kbuild:lib-$(CONFIG_DIFF) += diff.o
+
//usage:#define diff_trivial_usage
//usage: "[-abBdiNqrTstw] [-L LABEL] [-S FILE] [-U LINES] FILE1 FILE2"
//usage:#define diff_full_usage "\n\n"
"starting-file\0" Required_argument "S"
"minimal\0" No_argument "d"
;
+# define GETOPT32 getopt32long
+# define LONGOPTS ,diff_longopts
+#else
+# define GETOPT32 getopt32
+# define LONGOPTS
#endif
int diff_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
INIT_G();
/* exactly 2 params; collect multiple -L <label>; -U N */
- opt_complementary = "=2";
-#if ENABLE_FEATURE_DIFF_LONG_OPTIONS
- applet_long_options = diff_longopts;
-#endif
- getopt32(argv, "abdiL:*NqrsS:tTU:+wupBE",
+ GETOPT32(argv, "^" "abdiL:*NqrsS:tTU:+wupBE" "\0" "=2"
+ LONGOPTS,
&L_arg, &s_start, &opt_U_context);
argv += optind;
while (L_arg)