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@@ -0,0 +1,19 @@
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+#serial 1
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+
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+dnl From Paul Eggert
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+
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+AC_DEFUN(jm_FUNC_MBRTOWC,
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+[
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+ AC_MSG_CHECKING([whether mbrtowc is declared])
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+ AC_CACHE_VAL(jm_cv_func_mbrtowc,
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+ [AC_TRY_LINK(
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+ [#include <wchar.h>],
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+ [return !mbrtowc;],
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+ [jm_cv_func_mbrtowc=yes],
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+ [jm_cv_func_mbrtowc=no])])
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+ if test $jm_cv_func_mbrtowc = yes; then
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE(HAVE_MBRTOWC, 1,
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+ [Define to 1 if mbrtowc exists and is properly declared.])
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+ fi
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+])
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Paul Eggert