Added macros from ICU-Project (ref. to https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/index.html). This found by daca@home.

cfg/icu.cfg

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<def format="2">
+  <!-- This library contains configuration of ICU-project (http://userguide.icu-project.org/) -->
+  <define name="U_SUCCESS(x)" value="((x)&lt;=0)"/>
+  <define name="U_FAILURE(x)" value="((x)&gt;0)"/>
+</def>

tools/donate_cpu_lib.py

@@ -456,6 +456,7 @@ def get_libraries():
     library_includes = {'boost': ['<boost/'],
                        'cairo': ['<cairo.h>'],
                        'cppunit': ['<cppunit/'],
+                       'icu': ['<unicode/'], ['"unicode/'],
                        'googletest': ['<gtest/gtest.h>'],
                        'gtk': ['<gtk/gtk.h>', '<glib.h>', '<glib/', '<gnome.h>'],
                        'kde': ['<KGlobal>', '<KApplication>', '<KDE/'],