Index: uspace/app/pcc/cc/cpp/tests/test3
===================================================================
--- uspace/app/pcc/cc/cpp/tests/test3	(revision a7de7182d18160e8d93036ebe6875ba02f0d95ee)
+++ uspace/app/pcc/cc/cpp/tests/test3	(revision a7de7182d18160e8d93036ebe6875ba02f0d95ee)
@@ -0,0 +1,15 @@
+#define str(s) # s
+#define xstr(s) str(s)
+#define debug(s, t) printf("x" # s "= %d, x" # t "= %s", \
+	x ## s, x ## t)
+#define INCFILE(n) vers ## n
+#define glue(a, b) a ## b
+#define xglue(a, b) glue(a, b)
+#define HIGHLOW "hello"
+#define LOW LOW ", world"
+debug(1, 2);
+fputs(str(strncmp("abc\0d", "abc", '\4') // this goes away
+	== 0) str(: @\n), s);
+\#include xstr(INCFILE(2).h)
+glue(HIGH, LOW);
+xglue(HIGH, LOW)