$OpenBSD: patch-cmake_Unix_cmake,v 1.1.1.1 2016/01/24 10:06:15 landry Exp $
Avoid forced linkage with libstdc++.
--- cmake/Unix.cmake.orig	Mon Jul 20 08:52:44 2015
+++ cmake/Unix.cmake	Mon Jul 20 08:56:45 2015
@@ -71,6 +71,7 @@ if(ENABLE_RAW)
 	if(NOT LIBRAW_FOUND)
 		message(FATAL_ERROR "libraw not found. It's mandatory when used with ENABLE_RAW enabled") 
 	else()
+		list(REMOVE_ITEM LIBRAW_LIBRARIES stdc++)
 		add_definitions(-DWITH_LIBRAW)
 	endif()
 endif(ENABLE_RAW)
