[BusyBox] Changing the way help is displayed...

[Vladimir N. Oleynik]

Larry,
 
> There may not be a reason to have <appletname.h>.  The only valid
> definition it would include is int <appletname>_main().  That can
> be generated without using a separate file.

1) For trivial generator busybox_applets.h
2) For aliases ("test"=="[", "init"=="linuxrc", "dos2unix"...)
...
N) For generate several binaries kit

> I guess <appletname>.cfg would be a default set, that could
> be overruled by the version in the current directory.  This
> is a c-syntax file, that is #included by <appletname>.c?

Hmm, and create special C-compiler for parse this? ;-0 :-)

> The existing Config.h does the following:
>    1. applet selection
>    2. general system config
>    3. config for groups of related applets
>    4. individual applet config
>    5. interlocking against bogus configs
> Of these, (1) would move elsewhere, (4) is taken up with <appletname>.cfg.
> I'm not worried about (5), it's easy enough to split out.  (2) is a
> legitimate part of a busybox-wide Config.h, but there isn't really
> that much -- BUFFERS_GO_ON_STACK and USE_DEVPS_PATCH.
> I don't know how to handle (4), except to leave it in Config.h until
> someone thinks of a convenient and productive way to pull it out.

May be use part current Config.h?

/* Hand manual section */

/* Comment for option XXX */
#define BB_OPTION_XXX
...

/* Automatic section, not change */

#include "../Common.Config.h"

#ifdef BB_OPTION_ABC
# undef BB_OPTION_XY
# define BB_OPTION_Z
#endif

#if defined(BB_OPTION_Z) && !defined(BB_OPTION_NNN)
#error Require option BB_OPTION_NNN in common Config.h for use BB_OPTION_Z
#endif
 

--w
vodz