[c-index-test] CMake: When installing c-index-test to a different prefix directory, add an rpath so that

it can find libclang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261445 91177308-0d34-0410-b5e6-96231b3b80d8

tools/c-index-test/CMakeLists.txt

@@ -42,6 +42,8 @@ endif()
 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
   if(INTERNAL_INSTALL_PREFIX)
     set(INSTALL_DESTINATION "${INTERNAL_INSTALL_PREFIX}/bin")
+    set_property(TARGET c-index-test APPEND PROPERTY INSTALL_RPATH
+       "@executable_path/../../lib")
   else()
     set(INSTALL_DESTINATION bin)
   endif()