File no-boost_system.patch of Package knightsgame

diff --git a/Makefile b/Makefile
index 3df6d3e..3459e74 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ CXX = g++
 CPPFLAGS = -DUSE_FONTCONFIG -DDATA_DIR=$(DATA_DIR) -DNDEBUG
 CFLAGS = -O3 -ffast-math
 CXXFLAGS = $(CFLAGS)
-BOOST_LIBS = -lboost_thread$(BOOST_SUFFIX) -lboost_filesystem$(BOOST_SUFFIX) -lboost_system$(BOOST_SUFFIX)
+BOOST_LIBS = -lboost_thread$(BOOST_SUFFIX) -lboost_filesystem$(BOOST_SUFFIX)
 
 INSTALL = install
 
diff --git a/python/makemakefile.py b/python/makemakefile.py
index 1f34dbe..943405e 100755
--- a/python/makemakefile.py
+++ b/python/makemakefile.py
@@ -116,7 +116,7 @@ CXX = g++
 CPPFLAGS = -DUSE_FONTCONFIG -DDATA_DIR=$(DATA_DIR) -DNDEBUG
 CFLAGS = -O3 -ffast-math
 CXXFLAGS = $(CFLAGS)
-BOOST_LIBS = -lboost_thread$(BOOST_SUFFIX) -lboost_filesystem$(BOOST_SUFFIX) -lboost_system$(BOOST_SUFFIX)
+BOOST_LIBS = -lboost_thread$(BOOST_SUFFIX) -lboost_filesystem$(BOOST_SUFFIX)
 
 INSTALL = install