[bazel] Port f26c41e

Author: d0k

utils/bazel/llvm-project-overlay/clang/BUILD.bazel

@@ -31,6 +31,7 @@ cc_binary(
     ],
     stamp = 0,
     deps = [
+        ":support",
         "//llvm:Support",
         "//llvm:TableGen",
         "//llvm:config",
@@ -1668,6 +1669,20 @@ gentbl(
     ],
 )
 
+cc_library(
+    name = "support",
+    srcs = glob([
+        "lib/Support/*.cpp",
+    ]),
+    hdrs = glob([
+        "include/clang/Support/*.h",
+    ]),
+    includes = ["include"],
+    deps = [
+        "//llvm:Support",
+    ],
+)
+
 cc_library(
     name = "serialization",
     srcs = [