Escape spaces in rpath with quotes

Author: nickclark2016

src/tools/gcc.lua

@@ -426,6 +426,7 @@
 
 		for _, fullpath in ipairs(dirs) do
 			local rpath = path.getrelative(cfg.buildtarget.directory, fullpath)
+			rpath = p.quoted(rpath) -- quote in case of spaces in path
 			if table.contains(os.getSystemTags(cfg.system), "darwin") then
 				rpath = "@loader_path/" .. rpath
 			elseif (cfg.system == p.LINUX) then