diff --git a/clang/cmake/caches/Fuchsia-stage2.cmake b/clang/cmake/caches/Fuchsia-stage2.cmake
--- a/clang/cmake/caches/Fuchsia-stage2.cmake
+++ b/clang/cmake/caches/Fuchsia-stage2.cmake
@@ -4,7 +4,7 @@
 
 set(PACKAGE_VENDOR Fuchsia CACHE STRING "")
 
-set(LLVM_ENABLE_PROJECTS "bolt;clang;clang-tools-extra;lld;llvm;polly" CACHE STRING "")
+set(_FUCHSIA_ENABLE_PROJECTS "bolt;clang;clang-tools-extra;lld;llvm;polly")
 set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
 
 set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
@@ -321,7 +321,7 @@
   scan-build-py
   CACHE STRING "")
 
-set(LLVM_DISTRIBUTION_COMPONENTS
+set(_FUCHSIA_DISTRIBUTION_COMPONENTS
   clang
   lld
   clang-apply-replacements
@@ -338,3 +338,12 @@
   runtimes
   ${LLVM_TOOLCHAIN_TOOLS}
   CACHE STRING "")
+
+set(FUCHSIA_ENABLE_LLDB OFF CACHE BOOL "Enable LLDB")
+if(FUCHSIA_ENABLE_LLDB)
+  list(APPEND _FUCHSIA_ENABLE_PROJECTS "lldb")
+  list(APPEND _FUCHSIA_DISTRIBUTION_COMPONENTS "lldb")
+endif()
+
+set(LLVM_ENABLE_PROJECTS ${_FUCHSIA_ENABLE_PROJECTS} CACHE STRING "")
+set(LLVM_DISTRIBUTION_COMPONENTS ${_FUCHSIA_DISTRIBUTION_COMPONENTS} CACHE STRING "")