X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwctype_h.m4;h=329245147797273006eea0c3207487d7c249a854;hb=14b6d70139486b63e66257aad1abe2a9615f4d96;hp=83daffc9c71110a7d2fe77cd6d40f69999676a4a;hpb=e8e40a1a575dbd0ec461e9b20cb96374b1eeb651;p=gnulib.git

diff --git a/m4/wctype_h.m4 b/m4/wctype_h.m4
index 83daffc9c..329245147 100644
--- a/m4/wctype_h.m4
+++ b/m4/wctype_h.m4
@@ -1,4 +1,4 @@
-# wctype_h.m4 serial 5
+# wctype_h.m4 serial 6
 
 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
 
@@ -20,6 +20,13 @@ AC_DEFUN([gl_WCTYPE_H],
     HAVE_ISWCNTRL=0
   fi
   AC_SUBST([HAVE_ISWCNTRL])
+  AC_CHECK_FUNCS_ONCE([iswblank])
+  if test $ac_cv_func_iswblank = yes; then
+    HAVE_ISWBLANK=1
+  else
+    HAVE_ISWBLANK=0
+  fi
+  AC_SUBST([HAVE_ISWBLANK])
   AC_CHECK_HEADERS_ONCE([wctype.h])
   AC_REQUIRE([AC_C_INLINE])