Added support for resource compiler tool under the GCC toolset.

src/tools/gcc.lua

@@ -288,6 +288,10 @@
 --
 
 	function gcc.gettoolname(cfg, tool)
+		if tool == "rc" then
+			return "windres"
+		end
+
 		local sysflags = gcc.sysflags[cfg.architecture] or gcc.sysflags[cfg.system] or {}
 		return sysflags[tool]
 	end

tests/tools/test_gcc.lua

@@ -36,6 +36,7 @@
 		test.isnil(gcc.gettoolname(cfg, "cc"))
 		test.isnil(gcc.gettoolname(cfg, "cxx"))
 		test.isnil(gcc.gettoolname(cfg, "ar"))
+		test.isequal("windres", gcc.gettoolname(cfg, "rc"))
 	end
 
 	function suite.tools_onPS3()