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-rw-r--r--editors/Config.in7
-rw-r--r--editors/diff.c25
2 files changed, 32 insertions, 0 deletions
diff --git a/editors/Config.in b/editors/Config.in
index e1285f4..e4fdd0f 100644
--- a/editors/Config.in
+++ b/editors/Config.in
@@ -35,6 +35,13 @@ config DIFF
differences between them in a form that can be given to
the patch command.
+config FEATURE_DIFF_LONG_OPTIONS
+ bool "Enable long options"
+ default n
+ depends on DIFF && LONG_OPTS
+ help
+ Enable use of long options.
+
config FEATURE_DIFF_DIR
bool "Enable directory support"
default y
diff --git a/editors/diff.c b/editors/diff.c
index 7726104..9d0373f 100644
--- a/editors/diff.c
+++ b/editors/diff.c
@@ -876,6 +876,28 @@ static void diffdir(char *p[2], const char *s_start)
}
#endif
+#if ENABLE_FEATURE_DIFF_LONG_OPTIONS
+static const char diff_longopts[] ALIGN1 =
+ "ignore-case\0" No_argument "i"
+ "ignore-tab-expansion\0" No_argument "E"
+ "ignore-space-change\0" No_argument "b"
+ "ignore-all-space\0" No_argument "w"
+ "ignore-blank-lines\0" No_argument "B"
+ "text\0" No_argument "a"
+ "unified\0" Required_argument "U"
+ "label\0" Required_argument "L"
+ "show-c-function\0" No_argument "p"
+ "brief\0" No_argument "q"
+ "expand-tabs\0" No_argument "t"
+ "initial-tab\0" No_argument "T"
+ "recursive\0" No_argument "r"
+ "new-file\0" No_argument "N"
+ "report-identical-files\0" No_argument "s"
+ "starting-file\0" Required_argument "S"
+ "minimal\0" No_argument "d"
+ ;
+#endif
+
int diff_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int diff_main(int argc UNUSED_PARAM, char **argv)
{
@@ -887,6 +909,9 @@ int diff_main(int argc UNUSED_PARAM, char **argv)
/* exactly 2 params; collect multiple -L <label>; -U N */
opt_complementary = "=2:L::U+";
+#if ENABLE_FEATURE_DIFF_LONG_OPTIONS
+ applet_long_options = diff_longopts;
+#endif
getopt32(argv, "abdiL:NqrsS:tTU:wupBE",
&L_arg, &s_start, &opt_U_context);
argv += optind;