libbb: optionally support RTMIN[+n] and RTMAX[-n] signal names

function                                             old     new   delta
get_signum                                           140     336    +196
__libc_allocate_rtsig                                  -      56     +56
__libc_current_sigrtmin                                -       6      +6
__libc_current_sigrtmax                                -       6      +6
current_rtmin                                          -       4      +4
current_rtmax                                          -       4      +4
bbconfig_config_bz2                                 4961    4962      +1
------------------------------------------------------------------------------
(add/remove: 6/0 grow/shrink: 2/0 up/down: 273/0)             Total: 273 bytes

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