- fi
- if test $HAVE_MBSRTOWCS != 0 && test $REPLACE_MBSRTOWCS != 1; then
- gl_MBSRTOWCS_WORKS
- case "$gl_cv_func_mbsrtowcs_works" in
- *yes) ;;
- *) REPLACE_MBSRTOWCS=1 ;;
- esac
- fi
- if test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1; then
- gl_REPLACE_WCHAR_H
- AC_LIBOBJ([mbsrtowcs])
- AC_LIBOBJ([mbsrtowcs-state])
- gl_PREREQ_MBSRTOWCS
+ AC_CHECK_DECLS([mbsrtowcs],,, [[
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+ included before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+]])
+ if test $ac_cv_have_decl_mbsrtowcs = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares mbsrtowcs() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_MBSRTOWCS=1
+ fi
+ else
+ if test $REPLACE_MBSTATE_T = 1; then
+ REPLACE_MBSRTOWCS=1
+ else
+ gl_MBSRTOWCS_WORKS
+ case "$gl_cv_func_mbsrtowcs_works" in
+ *yes) ;;
+ *) REPLACE_MBSRTOWCS=1 ;;
+ esac
+ fi