Index: clang/CMakeLists.txt
===================================================================
--- clang/CMakeLists.txt
+++ clang/CMakeLists.txt
@@ -121,6 +121,8 @@
   include(LLVMDistributionSupport)
 
   set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
+  set(BUG_REPORT_URL "${LLVM_PACKAGE_BUGREPORT}" CACHE STRING
+    "Default URL where bug reports are to be submitted.")
 
   if (NOT DEFINED LLVM_INCLUDE_TESTS)
     set(LLVM_INCLUDE_TESTS ON)
Index: llvm/cmake/modules/LLVMConfig.cmake.in
===================================================================
--- llvm/cmake/modules/LLVMConfig.cmake.in
+++ llvm/cmake/modules/LLVMConfig.cmake.in
@@ -7,6 +7,7 @@
 set(LLVM_VERSION_PATCH @LLVM_VERSION_PATCH@)
 set(LLVM_VERSION_SUFFIX @LLVM_VERSION_SUFFIX@)
 set(LLVM_PACKAGE_VERSION @PACKAGE_VERSION@)
+set(LLVM_PACKAGE_BUGREPORT @PACKAGE_BUGREPORT@)
 
 set(LLVM_BUILD_TYPE @CMAKE_BUILD_TYPE@)