File 0002-remove-boost-system-library.patch of Package 0ad

diff -purN a/build/premake/extern_libs5.lua b/build/premake/extern_libs5.lua
--- a/build/premake/extern_libs5.lua	2025-07-14 16:31:46.000000000 +0200
+++ b/build/premake/extern_libs5.lua	2025-09-18 20:38:10.348786852 +0200
@@ -248,9 +248,9 @@ extern_lib_defs = {
 			add_default_links({
 				-- 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", "boost_system" },
+				android_names = { "boost_filesystem-gcc-mt" },
+				unix_names = { os.findlib("boost_filesystem-mt") and "boost_filesystem-mt" or "boost_filesystem" },
+				osx_names = { "boost_filesystem" },
 			})
 		end,
 	},