X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwctype.m4;h=f6e85addc324cfcbf5a34f2c14ab72103dab1e85;hb=9b604b4cbfad7422bacc1c723df1d027b6a7c738;hp=1eb55a412f39c470eb0371264f872b43da1d6b0f;hpb=28db629d4f20b514087389b0339b5ba8c83a707b;p=gnulib.git

diff --git a/m4/wctype.m4 b/m4/wctype.m4
index 1eb55a412..f6e85addc 100644
--- a/m4/wctype.m4
+++ b/m4/wctype.m4
@@ -1,83 +1,12 @@
-# wctype.m4 serial 3
-
-dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-
-dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
+# wctype.m4 serial 2
+dnl Copyright (C) 2011 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_TRY_RUN([#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_TRY_COMPILE([#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
 ])