--- configure.ac.orig	2014-10-16 06:06:15.000000000 +0200
+++ configure.ac	2014-11-01 22:47:05.901398189 +0100
@@ -1485,7 +1485,10 @@
 if test "$with_icu" != "yes" ; then
     echo Disabling ICU support
 else
-    ICU_CONFIG=icu-config
+    if test "$ICU_CONFIG" = ""
+    then
+        ICU_CONFIG=icu-config
+    fi
     if ${ICU_CONFIG} --cflags >/dev/null 2>&1
     then
         ICU_LIBS=`${ICU_CONFIG} --ldflags`
