[clang-diff] Add HTML side-by-side diff output

Reviewers: arphaman

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D36182

llvm-svn: 311241
diff --git a/clang/tools/clang-diff/CMakeLists.txt b/clang/tools/clang-diff/CMakeLists.txt
index cc696ef..a1fc627 100644
--- a/clang/tools/clang-diff/CMakeLists.txt
+++ b/clang/tools/clang-diff/CMakeLists.txt
@@ -7,6 +7,7 @@
   )
 
 target_link_libraries(clang-diff
+  clangBasic
   clangFrontend
   clangTooling
   clangToolingASTDiff