rebar.config.script

CheckHeaders = [
	{"limits.h", "HAVE_LIMITS_H"},
	{"sys/param.h", "HAVE_SYS_PARAM_H"},
	{"sys/xattr.h", "HAVE_SYS_XATTR_H"}
],

try
	IncPathsTmp = case rebar_utils:sh("scripts/print-gcc-include-paths.sh",
	                                  [{use_stdout, false}, return_on_error]) of
		{ok, Result1}    -> Result1;
		{error, Reason1} -> throw(Reason1)
	end,
	IncPaths = string:tokens(IncPathsTmp, "\n"),

	Defs = lists:foldl(
		fun({Header, Define}, Acc) ->
			case lists:any(fun(P) -> filelib:is_file(P ++ "/" ++ Header) end, IncPaths) of
				true -> " -D" ++ Define ++ Acc;
				false -> Acc
			end
		end,
		"",
		CheckHeaders),

	FuseCFlags0 = case rebar_utils:sh("pkg-config --cflags fuse",
	                                  [{use_stdout, false}, return_on_error]) of
		{ok, Result2}    -> Result2;
		{error, Reason2} -> throw(Reason2)
	end,
	FuseLDFlags0 = case rebar_utils:sh("pkg-config --libs fuse",
	                                   [{use_stdout, false}, return_on_error]) of
		{ok, Result3}    -> Result3;
		{error, Reason3} -> throw(Reason3)
	end,

	FuseCFlags = [ C || C <- FuseCFlags0, (C =/= 10) and (C =/= 13) ] ++
		case os:type() of
			{unix, darwin} -> " -DDARWIN_TWEAKS";
			_ -> ""
		end,

	FuseLDFlags = [ C || C <- FuseLDFlags0, (C =/= 10) and (C =/= 13) ],


	Config = [
		{port_specs, [
			{"priv/fuserl_drv.so", [
				"c_src/fuserl.c",
				"c_src/fuserl_portability.c"
			]},
			{"priv/fuserl", [
				"c_src/fuserldrv.c",
				"c_src/driver2pipe.c"
			]}
		]},
		{port_env, [
			{"CFLAGS", FuseCFlags ++ Defs},
			{"LDFLAGS", FuseLDFlags}
		]}
	],

	% io:format("config: ~p~n", [Config]),

	Config
catch
	throw:{_Code, Error} ->
		io:format("Error in fuserl rebar config script: ~s", [Error]),
		CONFIG
end.