| // Ensure that we cannot disable strict prototypes, no matter how hard we try. |
| // RUN: not %clang -fno-no-knr-functions -x c++ %s 2>&1 | FileCheck --check-prefixes=NONO %s |
| // RUN: not %clang -fno-no-knr-functions -x c %s 2>&1 | FileCheck --check-prefixes=NONO %s |
| // RUN: not %clang -fno-no-knr-functions -std=c89 -x c %s 2>&1 | FileCheck --check-prefixes=NONO %s |
| // RUN: not %clang -fknr-functions -x c++ %s 2>&1 | FileCheck --check-prefixes=POS %s |
| // RUN: not %clang -fknr-functions -x c %s 2>&1 | FileCheck --check-prefixes=POS %s |
| // RUN: not %clang -fknr-functions -std=c89 -x c %s 2>&1 | FileCheck --check-prefixes=POS %s |
| // Ensure that the driver flag is actually accepted though. |
| // RUN: %clang -fno-knr-functions -### %s 2>&1 | FileCheck --check-prefixes=ACCEPTED %s |
| // NONO: error: unknown argument: '-fno-no-knr-functions' |
| // POS: error: unknown argument: '-fknr-functions' |
| // ACCEPTED-NOT: warning: argument unused during compilation: '-fno-knr-functions' |
