File drop-boost_system.patch of Package alchemyquest

Don't use libboost_system anymore
It was dropped in Tumbleweed

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87bbe08..ed4e342 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,10 +49,10 @@ File (GLOB SOURCES ${SRC_DIR}/*.cpp ${SRC_DIR}/*/*.cpp ${SRC_DIR}/*/*/*.cpp)
 Add_Executable (${PROJECT_NAME} ${SOURCES})
 
 if ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
-	Set (BOOST_LIBRARIES "-lboost_filesystem -lboost_system")
+	Set (BOOST_LIBRARIES "-lboost_filesystem")
 endif ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
 if(MINGW)
-	Set (BOOST_LIBRARIES "-lboost_filesystem-mt-x32 -lboost_system-mt-x32")
+	Set (BOOST_LIBRARIES "-lboost_filesystem-mt-x32")
 	SET(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -mwindows")
 endif()