ncurses 5.9 - patch 20110730

+ modify configure script and makefiles in c++ and progs to allow the
  directory used for rpath option to be overridden, e.g., to work
  around updates to the variables used by tic during an install.
+ add -K option to tic/infocmp, to provide stricter BSD-compatibility
  for termcap output.
+ add _nc_strict_bsd variable in tic library which controls the
  "strict" BSD termcap compatibility from 20110723, plus these
  features:
  + allow escapes such as "\8" and "\9" when reading termcap
  + disallow "\a", "\e", "\l", "\s" and "\:" escapes when reading
    termcap files, passing through "a", "e", etc.
  + expand "\:" as "\072" on output.
+ modify _nc_get_token() to reset the token's string value in case
  there is a string-typed token lacking the "=" marker.
+ fix a few memory leaks in _nc_tgetent.
+ fix a few places where reading from a termcap file could refer to
  freed memory.
+ add an overflow check when converting terminfo/termcap numeric
  values, since terminfo stores those in a short, and they must be
  positive.
+ correct internal variables used for translating to termcap "%>"
  feature, and translating from termcap %B to terminfo, needed by
  tctest (cf: 19991211).
+ amend a minor fix to acsc when loading a termcap file to separate it
  from warnings needed for tic (cf: 20040710)
+ modify logic in _nc_read_entry() and _nc_read_tic_entry() to allow
  a termcap file to be handled via TERMINFO_DIRS.
+ modify _nc_infotocap() to include non-mandatory padding when
  translating to termcap.
+ modify _nc_read_termcap_entry(), passing a flag in the case where
  getcap is used, to reduce interactive warning messages.