Add an option to disable unicodedata

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

---
 configure.ac |    6 ++++++
 1 file changed, 6 insertions(+)

Index: b/configure.ac
===================================================================
--- a/configure.ac
+++ b/configure.ac
@@ -2684,6 +2684,12 @@
     	     DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} nis"
   	  fi])
 
+AC_ARG_ENABLE(unicodedata,
+	AS_HELP_STRING([--disable-unicodedata], [disable unicodedata]),
+	[ if test "$enableval" = "no"; then
+    	     DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} unicodedata"
+  	  fi])
+
 AC_SUBST(TK)
 AC_ARG_ENABLE(tk,
 	AS_HELP_STRING([--disable-tk], [disable tk]),