Revert "[Driver] Reland: Default Android toolchains to libc++."
authorDan Albert <danalbert@google.com>
Fri, 19 Oct 2018 19:23:01 +0000 (19:23 +0000)
committerDan Albert <danalbert@google.com>
Fri, 19 Oct 2018 19:23:01 +0000 (19:23 +0000)
This reverts commit 84677d5009d613232d360fda27e6e41fb5cb6700.

llvm-svn: 344806

clang/lib/Driver/ToolChains/Linux.cpp
clang/lib/Driver/ToolChains/Linux.h
clang/test/Driver/android-ndk-standalone.cpp

index 2ac335c..cd12929 100644 (file)
@@ -443,12 +443,6 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
   addPathIfExists(D, SysRoot + "/usr/lib", Paths);
 }
 
-ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const {
-  if (getTriple().isAndroid())
-    return ToolChain::CST_Libcxx;
-  return ToolChain::CST_Libstdcxx;
-}
-
 bool Linux::HasNativeLLVMSupport() const { return true; }
 
 Tool *Linux::buildLinker() const { return new tools::gnutools::Linker(*this); }
index 4a662cb..2f0c361 100644 (file)
@@ -37,7 +37,6 @@ public:
                           llvm::opt::ArgStringList &CC1Args) const override;
   void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                            llvm::opt::ArgStringList &CC1Args) const override;
-  CXXStdlibType GetDefaultCXXStdlibType() const override;
   bool isPIEDefault() const override;
   bool IsMathErrnoDefault() const override;
   SanitizerMask getSupportedSanitizers() const override;
index c4d9399..dd5ebe9 100644 (file)
@@ -2,13 +2,21 @@
 // toolchain.
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  %s
 // CHECK: {{.*}}clang{{.*}}" "-cc1"
 // CHECK: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
+// CHECK-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK: "-internal-isystem" "{{.*}}/sysroot/usr/local/include"
 // CHECK: "-internal-isystem" "[[RESOURCE_DIR]]{{(/|\\\\)}}include"
 // CHECK: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/arm-linux-androideabi"
 // CHECK-14: "-L{{.*}}/sysroot/usr/lib/arm-linux-androideabi"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
-// RUN:     -B%S/Inputs/basic_android_ndk_tree \
-// RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
-// RUN:   | FileCheck --check-prefix=CHECK-STDCXX %s
-// CHECK-STDCXX: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-STDCXX: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-STDCXX: "-internal-isystem" "{{.*}}/include/c++/4.9"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
-// CHECK-STDCXX: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
-// CHECK-STDCXX-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
-// CHECK-STDCXX: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
-// CHECK-STDCXX: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/armv7-a"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/thumb"
-// CHECK-STDCXX: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/armv7-a"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/thumb"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/armv7-a"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/thumb"
-// CHECK-STDCXX: "-L{{.*}}/sysroot/usr/lib/arm-linux-androideabi/21"
-// CHECK-STDCXX: "-L{{.*}}/sysroot/usr/lib/arm-linux-androideabi"
-// CHECK-STDCXX: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/arm-linux-androideabi/lib"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/armv7-a/thumb"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/armv7-a"
-// CHECK-STDCXX-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib/thumb"
-//
-// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target armv7a-none-linux-androideabi21 \
+// RUN:     -target armv7a-none-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-ARMV7 %s
 // CHECK-ARMV7: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-ARMV7: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-ARMV7: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-ARMV7: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-ARMV7: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK-ARMV7-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-ARMV7: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-ARMV7: "-internal-isystem" "{{.*}}/sysroot/usr/local/include"
 // CHECK-ARMV7: "-internal-isystem" "[[RESOURCE_DIR]]{{(/|\\\\)}}include"
 // CHECK-ARMV7: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/arm-linux-androideabi"
 //
 // Other flags that can trigger armv7 mode.
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -march=armv7 \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-ARMV7 %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -march=armv7a \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-ARMV7 %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -march=armv7-a \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 //
 // ARM thumb mode.
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -mthumb \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-THUMB %s
 // CHECK-THUMB: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-THUMB: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-THUMB: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7/thumb"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7/thumb"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7"
+// CHECK-THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-THUMB: "-internal-isystem" "{{.*}}/sysroot/usr/local/include"
 // CHECK-THUMB: "-internal-isystem" "[[RESOURCE_DIR]]{{(/|\\\\)}}include"
 // CHECK-THUMB: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/arm-linux-androideabi"
 //
 // ARM V7 thumb mode.
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -march=armv7-a -mthumb \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-ARMV7THUMB %s
 // CHECK-ARMV7THUMB: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-ARMV7THUMB: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
-// CHECK-ARMV7THUMB: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-ARMV7THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-ARMV7THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a/thumb"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/armv7-a"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi/thumb"
+// CHECK-ARMV7THUMB-NOT: "-internal-isystem" "{{.*}}/include/c++/4.9/arm-linux-androideabi"
+// CHECK-ARMV7THUMB: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-ARMV7THUMB: "-internal-isystem" "{{.*}}/sysroot/usr/local/include"
 // CHECK-ARMV7THUMB: "-internal-isystem" "[[RESOURCE_DIR]]{{(/|\\\\)}}include"
 // CHECK-ARMV7THUMB: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/arm-linux-androideabi"
 // CHECK-ARMV7THUMB-NOT: "-L{{.*}}/lib/gcc/arm-linux-androideabi/4.9/../{{[^ ]*}}/lib"
 
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm-linux-androideabi21 \
+// RUN:     -target arm-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -march=armv7-a -mthumb \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target armv7a-none-linux-androideabi21 \
+// RUN:     -target armv7a-none-linux-androideabi21 -stdlib=libstdc++ \
 // RUN:     -mthumb \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck  --check-prefix=CHECK-ARMV7THUMB %s
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target aarch64-linux-android21 \
+// RUN:     -target aarch64-linux-android21 -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-AARCH64 %s
 // CHECK-AARCH64: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-AARCH64: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-AARCH64: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-AARCH64: "-internal-isystem" "{{.*}}/include/c++/4.9/aarch64-linux-android"
+// CHECK-AARCH64: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-AARCH64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/aarch64-linux-android"
 // CHECK-AARCH64: "-internal-externc-isystem" "{{.*}}/sysroot/include"
 // CHECK-AARCH64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include"
 // CHECK-AARCH64: "-L{{.*}}/lib/gcc/aarch64-linux-android/4.9/../../../../aarch64-linux-android/lib"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target arm64-linux-android21 \
+// RUN:     -target arm64-linux-android21 -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-ARM64 %s
 // CHECK-ARM64: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-ARM64: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-ARM64: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-ARM64: "-internal-isystem" "{{.*}}/include/c++/4.9/aarch64-linux-android"
+// CHECK-ARM64: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-ARM64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/aarch64-linux-android"
 // CHECK-ARM64: "-internal-externc-isystem" "{{.*}}/sysroot/include"
 // CHECK-ARM64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -target mipsel-linux-android21 \
-// RUN:     -mips32 \
+// RUN:     -mips32 -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-MIPS %s
 // CHECK-MIPS: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-MIPS: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-MIPS: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-MIPS: "-internal-isystem" "{{.*}}/include/c++/4.9/mipsel-linux-android"
+// CHECK-MIPS: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-MIPS: "-internal-externc-isystem" "{{.*}}/sysroot/include"
 // CHECK-MIPS: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include"
 // CHECK-MIPS: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -target i686-linux-android21 \
+// RUN:     -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-I686 %s
 // CHECK-I686: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-I686: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-I686: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-I686: "-internal-isystem" "{{.*}}/include/c++/4.9/i686-linux-android"
+// CHECK-I686: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-I686: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/i686-linux-android"
 // CHECK-I686: "-internal-externc-isystem" "{{.*}}/sysroot/include"
 // CHECK-I686: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -target x86_64-linux-android21 \
+// RUN:     -stdlib=libstdc++ \
 // RUN:     -B%S/Inputs/basic_android_ndk_tree \
 // RUN:     --sysroot=%S/Inputs/basic_android_ndk_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-X86_64 %s
 // CHECK-X86_64: {{.*}}clang{{.*}}" "-cc1"
-// CHECK-X86_64: "-internal-isystem" "{{.*}}/include/c++/v1"
+// CHECK-X86_64: "-internal-isystem" "{{.*}}/include/c++/4.9"
+// CHECK-X86_64: "-internal-isystem" "{{.*}}/include/c++/4.9/x86_64-linux-android"
+// CHECK-X86_64: "-internal-isystem" "{{.*}}/include/c++/4.9/backward"
 // CHECK-X86_64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include/x86_64-linux-android"
 // CHECK-X86_64: "-internal-externc-isystem" "{{.*}}/sysroot/include"
 // CHECK-X86_64: "-internal-externc-isystem" "{{.*}}/sysroot/usr/include"