Initial support for the CMake build system.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
new file mode 100755
index 0000000..c3641ea
--- /dev/null
+++ b/cmake/modules/AddLLVM.cmake
@@ -0,0 +1,39 @@
+include(LLVMConfig)
+
+macro(add_llvm_library name)
+  add_library( ${name} ${ARGN} )
+  set( llvm_libs ${llvm_libs} ${name} PARENT_SCOPE)
+endmacro(add_llvm_library name)
+
+
+macro(add_llvm_executable name)
+  add_executable(${name} ${ARGN})
+  if( LLVM_LINK_COMPONENTS )
+    llvm_config(${name} ${LLVM_LINK_COMPONENTS})
+  endif( LLVM_LINK_COMPONENTS )
+  if( MSVC )
+    target_link_libraries(${name} ${llvm_libs})
+  else( MSVC )
+    add_dependencies(${name} llvm-config.target)
+    set_target_properties(${name}
+      PROPERTIES
+      LINK_FLAGS "-L ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}")
+    if( MINGW )
+      target_link_libraries(${name} DbgHelp psapi)
+    elseif( CMAKE_HOST_UNIX )
+      target_link_libraries(${name} dl)
+    endif( MINGW )
+  endif( MSVC )
+endmacro(add_llvm_executable name)
+
+
+macro(add_llvm_tool name)
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR})
+  add_llvm_executable(${name} ${ARGN})
+endmacro(add_llvm_tool name)
+
+
+macro(add_llvm_example name)
+#  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_EXAMPLES_BINARY_DIR})
+  add_llvm_executable(${name} ${ARGN})
+endmacro(add_llvm_example name)