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udhcpc: kill undocumented -W, it was a no-op.

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fix option parsing in the case some CONFIG_x are off.
 disable -b on NOMMU, make backgrounding work correctly
 (if a bit differently from MMU case). Previously,
 it wasn't working at all.
 stop using global data for flags in main(), opt
 bitfield works as well.

function                                             old     new   delta
cryptpw_main                                         177     153     -24
packed_usage                                       24478   24452     -26
client_background                                     26       -     -26
udhcpc_main                                         2462    2372     -90
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/3 up/down: 0/-166)           Total: -166 bytes
This commit is contained in:
Denis Vlasenko
2008-06-13 20:44:05 +00:00
parent 76f812803b
commit 21765fa063
6 changed files with 108 additions and 100 deletions
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2
include/platform.h
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@ -248,12 +248,10 @@ typedef unsigned smalluint;
(defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \
__UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__)
#define BB_MMU 0
#define BB_NOMMU 1
#define USE_FOR_NOMMU(...) __VA_ARGS__
#define USE_FOR_MMU(...)
#else
#define BB_MMU 1
/* BB_NOMMU is not defined in this case! */
#define USE_FOR_NOMMU(...)
#define USE_FOR_MMU(...) __VA_ARGS__
#endif