1*75f6d617Schristos#serial 4 2*75f6d617Schristos 3*75f6d617Schristosdnl From Paul Eggert 4*75f6d617Schristos 5*75f6d617SchristosAC_DEFUN([jm_FUNC_MBRTOWC], 6*75f6d617Schristos[ 7*75f6d617Schristos AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared], 8*75f6d617Schristos jm_cv_func_mbrtowc, 9*75f6d617Schristos [AC_TRY_LINK( 10*75f6d617Schristos [#include <wchar.h>], 11*75f6d617Schristos [mbstate_t state; return ! (sizeof state && mbrtowc);], 12*75f6d617Schristos jm_cv_func_mbrtowc=yes, 13*75f6d617Schristos jm_cv_func_mbrtowc=no)]) 14*75f6d617Schristos if test $jm_cv_func_mbrtowc = yes; then 15*75f6d617Schristos AC_DEFINE(HAVE_MBRTOWC, 1, 16*75f6d617Schristos [Define to 1 if mbrtowc and mbstate_t are properly declared.]) 17*75f6d617Schristos fi 18*75f6d617Schristos]) 19