TableGen.cmake: Fix to work without LLVM_COMMON_DEPENDS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158650 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index 1b1b1728d7442c52d9af7c430c395a475f912905..e3bdd9c7048302080153791b91e9314cf8a75d20 100644 (file)
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -50,7 +50,9 @@ function(add_public_tablegen_target target)
   if( TABLEGEN_OUTPUT )
     add_custom_target(${target}
       DEPENDS ${TABLEGEN_OUTPUT})
-    add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
+    if (LLVM_COMMON_DEPENDS)
+      add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
+    endif ()
     set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
   endif( TABLEGEN_OUTPUT )
 endfunction()