diff --git a/libunwind/CMakeLists.txt b/libunwind/CMakeLists.txt
--- a/libunwind/CMakeLists.txt
+++ b/libunwind/CMakeLists.txt
@@ -143,6 +143,10 @@
 set(LIBUNWIND_CXX_FLAGS "")
 set(LIBUNWIND_COMPILE_FLAGS "")
 set(LIBUNWIND_LINK_FLAGS "")
+set(LIBUNWIND_ADDITIONAL_COMPILE_FLAGS "" CACHE STRING
+    "Additional Compile only flags which can be provided in cache")
+set(LIBUNWIND_ADDITIONAL_LIBRARIES "" CACHE STRING
+    "Additional libraries libunwind is linked to which can be provided in cache")
 
 # Include macros for adding and removing libunwind flags.
 include(HandleLibunwindFlags)
@@ -151,6 +155,10 @@
 # Setup Compiler Flags
 #===============================================================================
 
+# Configure target flags
+add_compile_flags("${LIBUNWIND_ADDITIONAL_COMPILE_FLAGS}")
+add_library_flags("${LIBUNWIND_ADDITIONAL_LIBRARIES}")
+
 # Configure compiler.
 include(config-ix)