1dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. 2 3dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc. 4dnl This file is free software; the Free Software Foundation 5dnl gives unlimited permission to copy and/or distribute it, 6dnl with or without modifications, as long as this notice is preserved. 7 8dnl Written by Paul Eggert. 9 10AC_DEFUN([gl_WCTYPE_H], 11[ 12 AC_CHECK_FUNCS_ONCE([iswcntrl]) 13 if test $ac_cv_func_iswcntrl = yes; then 14 HAVE_ISWCNTRL=1 15 else 16 HAVE_ISWCNTRL=0 17 fi 18 AC_SUBST([HAVE_ISWCNTRL]) 19 AC_CHECK_HEADERS_ONCE([wctype.h]) 20 AC_REQUIRE([AC_C_INLINE]) 21 22 AC_REQUIRE([gt_TYPE_WINT_T]) 23 if test $gt_cv_c_wint_t = yes; then 24 HAVE_WINT_T=1 25 else 26 HAVE_WINT_T=0 27 fi 28 AC_SUBST([HAVE_WINT_T]) 29 30 WCTYPE_H=wctype.h 31 if test $ac_cv_header_wctype_h = yes; then 32 if test $ac_cv_func_iswcntrl = yes; then 33 WCTYPE_H= 34 fi 35 dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty, 36 dnl for the benefit of builds from non-distclean directories. 37 gl_CHECK_NEXT_HEADERS([wctype.h]) 38 HAVE_WCTYPE_H=1 39 else 40 HAVE_WCTYPE_H=0 41 fi 42 AC_SUBST([HAVE_WCTYPE_H]) 43 AC_SUBST([WCTYPE_H]) 44]) 45