MFC r239192:

MFC r239192:

  Change a few extern inline functions in libm to static inline, since
  they need to refer to static constants, which C99 does not allow for
  extern inline functions.

  While here, change a comment in e_rem_pio2f.c to mention the correct
  number of bits.

  Reviewed by:	bde

MFC r239195:

  Add __always_inline to __ieee754_rem_pio2() and __ieee754_rem_pio2f(),
  since some older versions of gcc refuse to inline these otherwise.

  Requested by:	bde

git-svn-id: svn://svn.freebsd.org/base/stable/9@239529 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f