[test] Fix test dependencies when using installed tools

Use the LLVM_UTILS_PROVIDED variable to determine whether test tool
dependencies should be exposed for clang-tools-extra tests. If clang is
being built stand-alone and LLVM test tools (FileCheck, count and not)
are installed, the top-level CMakeLists.txt of clang sets this variable
to indicate that they will not be built as a part of this build,
and therefore no dependencies should be emitted for them. This fixes
the dependency errors when building clang stand-alone with tests
enabled.

Differential Revision: https://reviews.llvm.org/D29851

llvm-svn: 297806

clang-tools-extra/test/CMakeLists.txt

@@ -31,9 +31,6 @@ if(CLANG_TOOLS_TEST_USE_VG)
 endif()
 
 set(CLANG_TOOLS_TEST_DEPS
-  # Base line deps.
-  FileCheck count not
-
   # clang-tidy tests require it.
   clang-headers
 
@@ -58,6 +55,13 @@ set(CLANG_TOOLS_TEST_DEPS
   ExtraToolsUnitTests
   )
 
+if(NOT LLVM_UTILS_PROVIDED)
+  list(APPEND CLANG_TOOLS_TEST_DEPS
+    # Base line deps.
+    FileCheck count not
+    )
+endif()
+
 add_lit_testsuite(check-clang-tools "Running the Clang extra tools' regression tests"
   ${CMAKE_CURRENT_BINARY_DIR}
   DEPENDS ${CLANG_TOOLS_TEST_DEPS}