Index: build/premake/extern_libs5.lua
===================================================================
--- build/premake/extern_libs5.lua
+++ build/premake/extern_libs5.lua
@@ -202,8 +202,8 @@
 				-- The following are not strictly link dependencies on all systems, but
 				-- are included for compatibility with different versions of Boost
 				android_names = { "boost_filesystem-gcc-mt", "boost_system-gcc-mt" },
-				unix_names = { os.findlib("boost_filesystem-mt") and "boost_filesystem-mt" or "boost_filesystem", os.findlib("boost_system-mt") and "boost_system-mt" or "boost_system" },
-				osx_names = { "boost_filesystem-mt", "boost_system-mt" },
+				unix_names = { os.findlib("boost_filesystem-mt") and "boost_filesystem-mt" or "boost_filesystem" },
+				osx_names = { "boost_filesystem-mt" },
 			})
 		end,
 	},
Index: libraries/osx/build-osx-libs.sh
===================================================================
--- libraries/osx/build-osx-libs.sh
+++ libraries/osx/build-osx-libs.sh
@@ -323,7 +323,7 @@
   pushd $LIB_DIRECTORY
 
   # Can't use macosx-version, see above comment.
-(./bootstrap.sh --with-libraries=filesystem,system --prefix=$INSTALL_DIR && ./b2 cflags="$CFLAGS" toolset=clang cxxflags="$CXXFLAGS" linkflags="$LDFLAGS" ${JOBS} -d2 --layout=tagged --debug-configuration link=static threading=multi variant=release,debug install) || die "Boost build failed"
+(./bootstrap.sh --with-libraries=filesystem --prefix=$INSTALL_DIR && ./b2 cflags="$CFLAGS" toolset=clang cxxflags="$CXXFLAGS" linkflags="$LDFLAGS" ${JOBS} -d2 --layout=tagged --debug-configuration link=static threading=multi variant=release,debug install) || die "Boost build failed"
 
   popd
   touch .already-built