Dogcows Code - chaz/tar/blob - m4/mbrtowc.m4

   1 #serial 1
   2
   3 dnl From Paul Eggert
   4
   5 AC_DEFUN(jm_FUNC_MBRTOWC,
   6 [
   7   AC_MSG_CHECKING([whether mbrtowc and mbstate_t are properly declared])
   8   AC_CACHE_VAL(jm_cv_func_mbrtowc,
   9     [AC_TRY_LINK(
  10        [#include <wchar.h>],
  11        [mbstate_t state; return ! (sizeof state && mbrtowc);],
  12        [jm_cv_func_mbrtowc=yes],
  13        [jm_cv_func_mbrtowc=no])])
  14   if test $jm_cv_func_mbrtowc = yes; then
  15     AC_MSG_RESULT(yes)
  16     AC_DEFINE(HAVE_MBRTOWC, 1,
  17       [Define to 1 if mbrtowc and mbstate_t are properly declared.])
  18   fi
  19 ])