[CMake] Move BUG_REPORT_URL from clang to llvm.

It was too late to set BUG_REPORT_URL after configure_file(config.h).
BUG_REPORT_URL in config.h.cmake would be updated at 2nd run of cmake.
It caused many recompilations.

FYI, configure handles BUG_REPORT_URL in llvm side.

llvm-svn: 199076

clang/CMakeLists.txt

@@ -451,8 +451,5 @@ if( CLANG_BUILT_STANDALONE AND MSVC_VERSION EQUAL 1600 )
   endif()
 endif()
 
-set(BUG_REPORT_URL "http://llvm.org/bugs/" CACHE STRING
-  "Default URL where bug reports are to be submitted.")
-
 set(CLANG_ORDER_FILE "" CACHE FILEPATH
   "Order file to use when compiling clang in order to improve startup time.")

llvm/CMakeLists.txt

@@ -37,6 +37,9 @@ set(PACKAGE_NAME LLVM)
 set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
 set(PACKAGE_BUGREPORT "http://llvm.org/bugs/")
 
+set(BUG_REPORT_URL "${PACKAGE_BUGREPORT}" CACHE STRING
+  "Default URL where bug reports are to be submitted.")
+
 # Configure CPack.
 set(CPACK_PACKAGE_INSTALL_DIRECTORY "LLVM")
 set(CPACK_PACKAGE_VENDOR "LLVM")