X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwctype.m4;h=49ce7da31244b17c35a92a92d02987a01d15535e;hb=da8054d48dc22e1c051db54049e005d51a006e69;hp=b611ebbc9b26e43ad901c36aa1b4985453fdf0b3;hpb=30dccb610124997ff5776d80979d24375f39b12a;p=gnulib.git

diff --git a/m4/wctype.m4 b/m4/wctype.m4
index b611ebbc9..49ce7da31 100644
--- a/m4/wctype.m4
+++ b/m4/wctype.m4
@@ -1,84 +1,12 @@
-# wctype.m4 serial 4
-
-dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-
-dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
+# wctype.m4 serial 2
+dnl Copyright (C) 2011-2013 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.
 
-dnl Written by Paul Eggert.
-
-AC_DEFUN([gl_WCTYPE_H],
+AC_DEFUN([gl_FUNC_WCTYPE],
 [
-  AC_REQUIRE([AC_PROG_CC])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-  AC_CHECK_FUNCS_ONCE([iswcntrl])
-  if test $ac_cv_func_iswcntrl = yes; then
-    HAVE_ISWCNTRL=1
-  else
-    HAVE_ISWCNTRL=0
-  fi
-  AC_SUBST([HAVE_ISWCNTRL])
-  AC_CHECK_HEADERS_ONCE([wctype.h])
-  AC_REQUIRE([AC_C_INLINE])
-
-  AC_REQUIRE([gt_TYPE_WINT_T])
-  if test $gt_cv_c_wint_t = yes; then
-    HAVE_WINT_T=1
-  else
-    HAVE_WINT_T=0
-  fi
-  AC_SUBST([HAVE_WINT_T])
-
-  WCTYPE_H=wctype.h
-  if test $ac_cv_header_wctype_h = yes; then
-    if test $ac_cv_func_iswcntrl = yes; then
-      dnl Linux libc5 has an iswprint function that returns 0 for all arguments.
-      dnl The other functions are likely broken in the same way.
-      AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
-        [
-          AC_RUN_IFELSE([AC_LANG_SOURCE([[
-                            #include <stddef.h>
-                            #include <stdio.h>
-                            #include <time.h>
-                            #include <wchar.h>
-                            #include <wctype.h>
-                            int main () { return iswprint ('x') == 0; }]])],
-            [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
-            [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
-                          #if __GNU_LIBRARY__ == 1
-                          Linux libc5 i18n is broken.
-                          #endif]], [])],
-              [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no])
-            ])
-        ])
-      if test $gl_cv_func_iswcntrl_works = yes; then
-        case "$host_os" in
-          mingw*)
-            dnl On mingw, towlower and towupper return random high 16 bits.
-            ;;
-          *)
-            dnl iswcntrl works. towlower and towupper work as well.
-            WCTYPE_H=
-            ;;
-        esac
-      fi
-    fi
-    dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty,
-    dnl for the benefit of builds from non-distclean directories.
-    gl_CHECK_NEXT_HEADERS([wctype.h])
-    HAVE_WCTYPE_H=1
-  else
-    HAVE_WCTYPE_H=0
-  fi
-  AC_SUBST([HAVE_WCTYPE_H])
-  AC_SUBST([WCTYPE_H])
-
-  if test "$gl_cv_func_iswcntrl_works" = no; then
-    REPLACE_ISWCNTRL=1
-  else
-    REPLACE_ISWCNTRL=0
-  fi
-  AC_SUBST([REPLACE_ISWCNTRL])
+  AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+  AC_REQUIRE([gl_WCTYPE_H])
+  HAVE_WCTYPE=$HAVE_WCTYPE_T
 ])