$NetBSD: patch-CMakeLists.txt,v 1.1 2018/01/07 20:57:15 joerg Exp $

--- CMakeLists.txt.orig	2018-01-07 18:01:55.927624647 +0000
+++ CMakeLists.txt
@@ -132,15 +132,6 @@ elseif(CMAKE_COMPILER_IS_GNUCXX)
 elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
   set(CMAKE_CXX_FLAGS
       "${CMAKE_CXX_FLAGS} -std=c++0x -Wall -pedantic -Werror -Wextra -Wno-unused-parameter")
-  if(NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
-    set(CMAKE_CXX_FLAGS
-        "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-  endif()
-  if(NOT ("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD" OR
-          "${CMAKE_SYSTEM_NAME}" MATCHES "Linux"))
-    set(CMAKE_EXE_LINKER_FLAGS
-        "${CMAKE_EXE_LINKER_FLAGS} -lc++abi")
-  endif()
 
   # Certain platforms such as ARM do not use signed chars by default
   # which causes issues with certain bounds checks.