Index: llvm/lib/Support/CMakeLists.txt
===================================================================
--- llvm/lib/Support/CMakeLists.txt
+++ llvm/lib/Support/CMakeLists.txt
@@ -1,5 +1,5 @@
 if(LLVM_ENABLE_ZLIB)
-  set(system_libs ${ZLIB_LIBRARY})
+  set(imported_libs ZLIB::ZLIB)
 endif()
 
 if( MSVC OR MINGW )
@@ -186,10 +186,20 @@
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support
   ${Backtrace_INCLUDE_DIRS}
-  LINK_LIBS ${system_libs} ${delayload_flags} ${Z3_LINK_FILES}
+  LINK_LIBS ${system_libs} ${imported_libs} ${delayload_flags} ${Z3_LINK_FILES}
   )
 
-set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${system_libs}")
+set(llvm_system_libs ${system_libs})
+
+if(LLVM_ENABLE_ZLIB)
+  get_property(zlib_library TARGET ZLIB::ZLIB PROPERTY IMPORTED_LOCATION_${CMAKE_BUILD_TYPE})
+  get_filename_component(zlib_library ${zlib_library} NAME_WE)
+  STRING(REGEX REPLACE "^${CMAKE_STATIC_LIBRARY_PREFIX}" "" zlib_library ${zlib_library})
+  STRING(REGEX REPLACE "${CMAKE_STATIC_LIBRARY_SUFFIX}$" "" zlib_library ${zlib_library})
+  set(llvm_system_libs ${llvm_system_libs} "${zlib_library}")
+endif()
+
+set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${llvm_system_libs}")
 
 if(LLVM_WITH_Z3)
   target_include_directories(LLVMSupport SYSTEM