1 // RUN: %clang_cc1 %s -Wunused-macros -Dfoo -Dfoo -verify 2 3 #include "warn-macro-unused.h" 4 5 # 1 "warn-macro-unused-fake-header.h" 1 6 #define unused_from_fake_header 7 # 5 "warn-macro-unused.c" 2 8 9 #define unused // expected-warning {{macro is not used}} 10 #define unused 11 unused 12 13 #undef unused_from_header // no warning 14