m4/ssize_t.m4

   1 #serial 1
   2
   3 dnl From Jim Meyering
   4
   5 # If ssize_t is not defined in sys/types.h, define it to `int'.
   6
   7 AC_DEFUN(jm_TYPE_SSIZE_T,
   8   [AC_CACHE_CHECK(for ssize_t in sys/types.h, jm_ac_cv_type_ssize_t,
   9     [
  10       AC_EGREP_HEADER(ssize_t, sys/types.h,
  11                       jm_ac_cv_type_ssize_t=yes,
  12                       jm_ac_cv_type_ssize_t=no)
  13       if test $jm_ac_cv_type_ssize_t = no; then
  14         AC_DEFINE(ssize_t, int)
  15       fi
  16     ]
  17    )
  18   ]
  19 )