[CMake][libunwind] Define add_target_flags which is missing

It's use was introduced in r353084 but its definition is missing.

Differential Revision: https://reviews.llvm.org/D58745

llvm-svn: 355142

diff --git a/libunwind/CMakeLists.txt b/libunwind/CMakeLists.txt
index 27d8bc5..debc847 100644 (file)
--- a/libunwind/CMakeLists.txt
+++ b/libunwind/CMakeLists.txt
@@ -214,12 +214,18 @@ macro(unwind_append_if list condition var)
   endif()
 endmacro()
 
-macro(add_target_flags_if condition var)
+macro(add_target_flags)
+  foreach(value ${ARGN})
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}")
+    list(APPEND LIBUNWIND_COMPILE_FLAGS ${value})
+    list(APPEND LIBUNWIND_LINK_FLAGS ${value})
+  endforeach()
+endmacro()
+
+macro(add_target_flags_if condition)
   if (${condition})
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${var}")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${var}")
-    list(APPEND LIBUNWIND_COMPILE_FLAGS ${var})
-    list(APPEND LIBUNWIND_LINK_FLAGS ${var})
+    add_target_flags(${ARGN})
   endif()
 endmacro()