[libunwind] r351875 - Enable LLVM_ENABLE_WARNINGS when building standalone out of tree

[Martin Storsjo via cfe-commits]

Author: mstorsjo
Date: Tue Jan 22 12:50:33 2019
New Revision: 351875

URL: http://llvm.org/viewvc/llvm-project?rev=351875&view=rev
Log:
Enable LLVM_ENABLE_WARNINGS when building standalone out of tree

When built within the llvm runtimes directory, the runtimes
CMakeLists.txt adds the same.

Differential Revision: https://reviews.llvm.org/D56981

Modified:
    libunwind/trunk/CMakeLists.txt

Modified: libunwind/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/libunwind/trunk/CMakeLists.txt?rev=351875&r1=351874&r2=351875&view=diff
==============================================================================
--- libunwind/trunk/CMakeLists.txt (original)
+++ libunwind/trunk/CMakeLists.txt Tue Jan 22 12:50:33 2019
@@ -73,6 +73,8 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURR
   endif()
 
   if (EXISTS ${LLVM_CMAKE_PATH})
+    # Enable warnings, otherwise -w gets added to the cflags by HandleLLVMOptions.
+    set(LLVM_ENABLE_WARNINGS ON)
     list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
     include("${LLVM_CMAKE_PATH}/AddLLVM.cmake")
     include("${LLVM_CMAKE_PATH}/HandleLLVMOptions.cmake")