fix !ENABLE_FEATURE_GETOPT_LONG build. Closes 3775

When compiling with !ENABLE_FEATURE_GETOPT_LONG, busybox still tries
to include getopt.h which is not available; for example with uClibc
when !UCLIBC_HAS_GETOPT_LONG.  getopt.h is only required
for the _long set of functions.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/docs/style-guide.txt b/docs/style-guide.txt
index fdf6cfe4d..10ed893dc 100644
--- a/docs/style-guide.txt
+++ b/docs/style-guide.txt
@@ -679,11 +679,10 @@ line in the midst of your #includes, if you need to parse long options:
 
 Then have long options defined:
 
-        static const struct option <applet>_long_options[] = {
-                { "list",    0, NULL, 't' },
-                { "extract", 0, NULL, 'x' },
-                { NULL, 0, NULL, 0 }
-        };
+        static const char <applet>_longopts[] ALIGN1 =
+                "list\0"    No_argument "t"
+                "extract\0" No_argument "x"
+        ;
 
 And a code block similar to the following near the top of your applet_main()
 routine:
@@ -691,7 +690,7 @@ routine:
         char *str_b;
 
         opt_complementary = "cryptic_string";
-        applet_long_options = <applet>_long_options; /* if you have them */
+        applet_long_options = <applet>_longopts; /* if you have them */
         opt = getopt32(argc, argv, "ab:c", &str_b);
         if (opt & 1) {
                 handle_option_a();