[llvm] r305635 - [CMake] Get rid of generating obj.*-tblgen if CMake >= 3.9 for Ninja generator.

[NAKAMURA Takumi via llvm-commits]

Author: chapuni
Date: Sat Jun 17 08:45:55 2017
New Revision: 305635

URL: http://llvm.org/viewvc/llvm-project?rev=305635&view=rev
Log:
[CMake] Get rid of generating obj.*-tblgen if CMake >= 3.9 for Ninja generator.

CMake-3.9 doesn't let compilation units depend on their dependent libraries.

Modified:
    llvm/trunk/cmake/modules/TableGen.cmake

Modified: llvm/trunk/cmake/modules/TableGen.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/TableGen.cmake?rev=305635&r1=305634&r2=305635&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/TableGen.cmake (original)
+++ llvm/trunk/cmake/modules/TableGen.cmake Sat Jun 17 08:45:55 2017
@@ -104,7 +104,8 @@ macro(add_tablegen target project)
   set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
   set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
 
-  if(NOT XCODE)
+  # CMake-3.9 doesn't let compilation units depend on their dependent libraries.
+  if(NOT (CMAKE_GENERATOR STREQUAL "Ninja" AND NOT CMAKE_VERSION VERSION_LESS 3.9) AND NOT XCODE)
     # FIXME: It leaks to user, callee of add_tablegen.
     set(LLVM_ENABLE_OBJLIB ON)
   endif()