[Lldb-commits] [lldb] [lldb][test] When an external stdlib is specified do not link to the system stdlib (PR #164462)

[Ebuka Ezike via lldb-commits]

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@@ -386,6 +386,11 @@ ifeq (,$(filter 1, $(USE_LIBSTDCPP) $(USE_LIBCPP) $(USE_SYSTEM_STDLIB)))
     ifneq "$(LIBCPP_INCLUDE_TARGET_DIR)" ""
       CXXFLAGS += -cxx-isystem $(LIBCPP_INCLUDE_TARGET_DIR)
     endif
+
+	# If `-nostdlib++` is not passed, clang will link to the system's stdlib.
+	ifeq ($(LDC), clang)
+		LDFLAGS += -nostdlib++ -nostdinc++
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da-viper wrote:

>Isn't adding it to CXXFLAGS enough as we do above? 

clang still links to the system stdlib

>Are these flags recognised by the linker?
If the linker is clang it is recognised. I don't think the flags works with other linkers. It is only added if the linker is clang 

https://github.com/llvm/llvm-project/pull/164462