|  | // Check that all the following options print a warning when given a | 
|  | // non-existent value. But only one warning. | 
|  |  | 
|  | // RUN: not %clangxx --target=i386-unknown-linux -stdlib=nostdlib %s 2>&1 | FileCheck --check-prefix=STDLIB %s | 
|  | // STDLIB: error: invalid library name in argument '-stdlib=nostdlib' | 
|  | // STDLIB-EMPTY: | 
|  |  | 
|  | // RUN: not %clangxx --target=i386-unknown-linux -rtlib=nortlib --unwindlib=libgcc %s 2>&1 | FileCheck --check-prefix=RTLIB %s | 
|  | // RTLIB: error: invalid runtime library name in argument '-rtlib=nortlib' | 
|  | // RTLIB-EMPTY: | 
|  |  | 
|  | // RUN: not %clangxx --target=i386-unknown-linux -unwindlib=nounwindlib %s 2>&1 | FileCheck --check-prefix=UNWINDLIB %s | 
|  | // UNWINDLIB: error: invalid unwind library name in argument '-unwindlib=nounwindlib' | 
|  | // UNWINDLIB-EMPTY: |