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| author | Chandler Carruth <chandlerc@gmail.com> | 2015-03-07 10:01:29 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2015-03-07 10:01:29 +0000 |
| commit | 7e7dd47fc21daf11c12484f4e9c4585b70d91560 (patch) | |
| tree | aefa290671bf891a6a74f97045da028926b8f6ce /clang/test | |
| parent | df397c520d48937df0a44bea3a49190176e107f2 (diff) | |
| download | bcm5719-llvm-7e7dd47fc21daf11c12484f4e9c4585b70d91560.tar.gz bcm5719-llvm-7e7dd47fc21daf11c12484f4e9c4585b70d91560.zip | |
Much like we silence warnings about -flto in many cases to facilitate
simplicity in build systems, silence '-stdlib=libc++' when linking. Even
if we're not linking C++ code per-se, we may be passing this flag so
that when we are linking C++ code we pick up the desired standard
library. While most build systems already provide separate C and C++
compile flags, many conflate link flags. Sadly, CMake is among them
causing this warning in a libc++ selfhost.
llvm-svn: 231559
Diffstat (limited to 'clang/test')
| -rw-r--r-- | clang/test/Driver/linux-ld.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/test/Driver/linux-ld.c b/clang/test/Driver/linux-ld.c index f2e6eda3ffb..a16c36ab3d5 100644 --- a/clang/test/Driver/linux-ld.c +++ b/clang/test/Driver/linux-ld.c @@ -417,6 +417,23 @@ // CHECK-BASIC-LIBCXX-INSTALL: "--sysroot=[[SYSROOT]]" // CHECK-BASIC-LIBCXX-INSTALL: "-L[[SYSROOT]]/usr/bin/../lib" // +// Test that we can use -stdlib=libc++ in a build system even when it +// occasionally links C code instead of C++ code. +// RUN: %clang -no-canonical-prefixes -x c %s -### -o %t.o 2>&1 \ +// RUN: -target x86_64-unknown-linux-gnu \ +// RUN: -stdlib=libc++ \ +// RUN: -ccc-install-dir %S/Inputs/basic_linux_libcxx_tree/usr/bin \ +// RUN: --gcc-toolchain="" \ +// RUN: --sysroot=%S/Inputs/basic_linux_libcxx_tree \ +// RUN: | FileCheck --check-prefix=CHECK-BASIC-LIBCXX-C-LINK %s +// CHECK-BASIC-LIBCXX-C-LINK-NOT: warning: +// CHECK-BASIC-LIBCXX-C-LINK: "{{[^"]*}}clang{{[^"]*}}" "-cc1" +// CHECK-BASIC-LIBCXX-C-LINK: "-isysroot" "[[SYSROOT:[^"]+]]" +// CHECK-BASIC-LIBCXX-C-LINK-NOT: "-internal-isystem" "[[SYSROOT]]/usr/bin/../include/c++/v1" +// CHECK-BASIC-LIBCXX-C-LINK: "-internal-isystem" "[[SYSROOT]]/usr/local/include" +// CHECK-BASIC-LIBCXX-C-LINK: "--sysroot=[[SYSROOT]]" +// CHECK-BASIC-LIBCXX-C-LINK: "-L[[SYSROOT]]/usr/bin/../lib" +// // Test a very broken version of multiarch that shipped in Ubuntu 11.04. // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ // RUN: --target=i386-unknown-linux \ |
