-# wctype_h.m4 serial 14
+# wctype_h.m4 serial 18
dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2015 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
fi
AC_SUBST([HAVE_ISWCNTRL])
- AC_REQUIRE([AC_C_INLINE])
-
AC_REQUIRE([gt_TYPE_WINT_T])
if test $gt_cv_c_wint_t = yes; then
HAVE_WINT_T=1
#if __GNU_LIBRARY__ == 1
Linux libc5 i18n is broken.
#endif]], [])],
- [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no])
+ [gl_cv_func_iswcntrl_works="guessing yes"],
+ [gl_cv_func_iswcntrl_works="guessing no"])
])
])
fi
fi
AC_SUBST([HAVE_WCTYPE_H])
- if test "$gl_cv_func_iswcntrl_works" = no; then
- REPLACE_ISWCNTRL=1
- else
- REPLACE_ISWCNTRL=0
- fi
+ case "$gl_cv_func_iswcntrl_works" in
+ *yes) REPLACE_ISWCNTRL=0 ;;
+ *) REPLACE_ISWCNTRL=1 ;;
+ esac
AC_SUBST([REPLACE_ISWCNTRL])
if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
- dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>.
+ dnl Redefine all of iswcntrl, ..., iswxdigit in <wctype.h>.
+ :
+ fi
+
+ if test $REPLACE_ISWCNTRL = 1; then
+ REPLACE_TOWLOWER=1
+ else
+ AC_CHECK_FUNCS([towlower])
+ if test $ac_cv_func_towlower = yes; then
+ REPLACE_TOWLOWER=0
+ else
+ AC_CHECK_DECLS([towlower],,,
+ [[/* 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 HAVE_WCTYPE_H
+ # include <wctype.h>
+ #endif
+ ]])
+ if test $ac_cv_have_decl_towlower = yes; then
+ dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and
+ dnl towupper() although it does not have the functions. Avoid a
+ dnl collision with gnulib's replacement.
+ REPLACE_TOWLOWER=1
+ else
+ REPLACE_TOWLOWER=0
+ fi
+ fi
+ fi
+ AC_SUBST([REPLACE_TOWLOWER])
+
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then
+ dnl Redefine towlower, towupper in <wctype.h>.
:
fi