Otherwise, the driver will insert e.g. -lgcc_s when
CLANG_DEFAULT_UNWINDLIB=libgcc is set during the clang build.
Differential Revision: https://reviews.llvm.org/D120644
// RUN: %clang -### -target ve-unknown-linux-gnu \
// RUN: --sysroot %S/Inputs/basic_ve_tree \
// RUN: -resource-dir=%S/Inputs/basic_ve_tree/resource_dir \
+// RUN: --unwindlib=none \
// RUN: -fuse-ld=ld \
// RUN: %s 2>&1 | FileCheck -check-prefix=DEF %s
// RUN: --sysroot %S/Inputs/basic_ve_tree \
// RUN: -fuse-ld=ld \
// RUN: -resource-dir=%S/Inputs/basic_ve_tree/resource_dir \
-// RUN: --stdlib=c++ %s 2>&1 | FileCheck -check-prefix=DEF %s
+// RUN: --unwindlib=none \
+// RUN: --stdlib=libc++ %s 2>&1 | FileCheck -check-prefix=DEF %s
// DEF: clang{{.*}}" "-cc1"
// DEF-SAME: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"