1@import config;
2
3int *test_foo() {
4  return foo();
5}
6
7char *test_bar() {
8  return bar(); // expected-warning{{implicit declaration of function 'bar' is invalid in C99}} \
9                // expected-warning{{incompatible integer to pointer conversion}}
10}
11
12#undef WANT_FOO // expected-note{{macro was #undef'd here}}
13@import config; // expected-warning{{#undef of configuration macro 'WANT_FOO' has no effect on the import of 'config'; pass '-UWANT_FOO' on the command line to configure the module}}
14
15#define WANT_FOO 2 // expected-note{{macro was defined here}}
16@import config; // expected-warning{{definition of configuration macro 'WANT_FOO' has no effect on the import of 'config'; pass '-DWANT_FOO=...' on the command line to configure the module}}
17
18#undef WANT_FOO
19#define WANT_FOO 1
20@import config; // okay
21
22#define WANT_BAR 1 // expected-note{{macro was defined here}}
23@import config; // expected-warning{{definition of configuration macro 'WANT_BAR' has no effect on the import of 'config'; pass '-DWANT_BAR=...' on the command line to configure the module}}
24
25// RUN: rm -rf %t
26// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -x objective-c -fmodules-cache-path=%t -DWANT_FOO=1 -emit-module -fmodule-name=config %S/Inputs/module.map
27// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs -DWANT_FOO=1 %s -verify
28
29