3 files changed, 191 insertions, 301 deletions

diff --git a/bootstrap/lib/stdlib/ebin/erl_compile.beam b/bootstrap/lib/stdlib/ebin/erl_compile.beam
index 1311018a7f..244bb5e290 100644
--- a/bootstrap/lib/stdlib/ebin/erl_compile.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_compile.beam
diff --git a/erts/etc/common/erlc.c b/erts/etc/common/erlc.c
index add65b87ca..055064abc4 100644
--- a/erts/etc/common/erlc.c
+++ b/erts/etc/common/erlc.c
@@ -60,7 +60,6 @@ static int eargc;		/* Number of arguments in eargv. */
 #define PUSH2(s, t) PUSH(s); PUSH(t)
 #define PUSH3(s, t, u) PUSH2(s, t); PUSH(u)
 
-static char* output_type = NULL; /* Type of output file. */
 #ifdef __WIN32__
 static int pause_after_execution = 0;
 #endif
@@ -71,7 +70,6 @@ static int pause_after_execution = 0;
 
 static char* process_opt(int* pArgc, char*** pArgv, int offset);
 static void error(char* format, ...);
-static void usage(void);
 static char* emalloc(size_t size);
 static char* strsave(char* string);
 static void push_words(char* src);
@@ -218,6 +216,7 @@ int main(int argc, char** argv)
     PUSH2("-mode", "minimal");
     PUSH2("-boot", "start_clean");
     PUSH3("-s", "erl_compile", "compile_cmdline");
+    PUSH("-extra");
 
     /*
      * Push standard arguments to Erlang.
@@ -227,154 +226,31 @@ int main(int argc, char** argv)
      * Parse all command line switches.
      */
 
-    while (argc > 1 && (argv[1][0] == '-' || argv[1][0] == '+')) {
+    while (argc > 1) {
 
 	/*
 	 * Options starting with '+' are passed on to Erlang.
 	 */
 
-	if (argv[1][0] == '+') {
-	    PUSH2("@option", argv[1]+1);
-	} else {
-	    /*
-	     * Interpret options starting with '-'.
-	     */
-	    
+	switch (argv[1][0]) {
+	case '+':
+	    PUSH(argv[1]);
+	    break;
+	case '-':
 	    switch (argv[1][1]) {
-	    case 'b':
-		output_type = process_opt(&argc, &argv, 0);
-		PUSH2("@output_type", output_type);
-		break;
-	    case 'c':		/* Allowed for compatibility with 'erl'. */
-		if (strcmp(argv[1], "-compile") != 0)
-		    goto error;
-		break;
 	    case 'd':
-		debug = 1;
-		break;
-	    case 'D':
-		{
-		    char* def = process_opt(&argc, &argv, 0);
-		    char* equals;
-		    
-		    def = strsave(def);	/* Do not clobber original. */
-		    if ((equals = strchr(def, '=')) == NULL) {
-			PUSH2("@d", def);
-		    } else {
-			*equals = '\0';
-			equals++;
-			PUSH3("@dv", def, equals);
-		    }
-		}
-		break;
-	    case 'I':
-		PUSH2("@i", process_opt(&argc, &argv, 0));
-		break;
-	    case 'M':
-		{
-		    char *buf, *key, *val;
-		    size_t buf_len;
-
-		    if (argv[1][2] == '\0') { /* -M */
-			/* Push the following options:
-			 *   o  'makedep'
-			 *   o  {makedep_output, standard_io}
-			 */
-			buf = strsave("makedep");
-			PUSH2("@option", buf);
-
-			key = "makedep_output";
-			val = "standard_io";
-			buf_len = 1 + strlen(key) + 1 + strlen(val) + 1 + 1;
-			buf = emalloc(buf_len);
-			snprintf(buf, buf_len, "{%s,%s}", key, val);
-			PUSH2("@option", buf);
-		    } else if (argv[1][3] == '\0') {
-			switch(argv[1][2]) {
-			case 'D': /* -MD */
-			    /* Push the following options:
-			     *   o  'makedep'
-			     */
-			    buf = strsave("makedep");
-			    PUSH2("@option", buf);
-			    break;
-			case 'F': /* -MF <file> */
-			    /* Push the following options:
-			     *   o  'makedep'
-			     *   o  {makedep_output, <file>}
-			     */
-			    buf = strsave("makedep");
-			    PUSH2("@option", buf);
-
-			    key = "makedep_output";
-			    val = process_opt(&argc, &argv, 1);
-			    buf_len = 1 + strlen(key) + 2 + strlen(val) + 2 + 1;
-			    buf = emalloc(buf_len);
-			    snprintf(buf, buf_len, "{%s,\"%s\"}", key, val);
-			    PUSH2("@option", buf);
-			    break;
-			case 'T': /* -MT <target> */
-			    /* Push the following options:
-			     *   o  {makedep_target, <target>}
-			     */
-			    key = "makedep_target";
-			    val = process_opt(&argc, &argv, 1);
-			    buf_len = 1 + strlen(key) + 2 + strlen(val) + 2 + 1;
-			    buf = emalloc(buf_len);
-			    snprintf(buf, buf_len, "{%s,\"%s\"}", key, val);
-			    PUSH2("@option", buf);
-			    break;
-			case 'Q': /* -MQ <target> */
-			    /* Push the following options:
-			     *   o  {makedep_target, <target>}
-			     *   o  makedep_quote_target
-			     */
-			    key = "makedep_target";
-			    val = process_opt(&argc, &argv, 1);
-			    buf_len = 1 + strlen(key) + 2 + strlen(val) + 2 + 1;
-			    buf = emalloc(buf_len);
-			    snprintf(buf, buf_len, "{%s,\"%s\"}", key, val);
-			    PUSH2("@option", buf);
-
-			    buf = strsave("makedep_quote_target");
-			    PUSH2("@option", buf);
-			    break;
-			case 'G': /* -MG */
-			    /* Push the following options:
-			     *   o  makedep_add_missing
-			     */
-			    buf = strsave("makedep_add_missing");
-			    PUSH2("@option", buf);
-			    break;
-			case 'P': /* -MP */
-			    /* Push the following options:
-			     *   o  makedep_phony
-			     */
-			    buf = strsave("makedep_phony");
-			    PUSH2("@option", buf);
-			    break;
-			default:
-			    goto error;
-			}
-		    }
+		if (argv[1][2] == '\0') {
+		    debug = 1;
+		} else {
+		    PUSH(argv[1]);
 		}
 		break;
-	    case 'o':
-		PUSH2("@outdir", process_opt(&argc, &argv, 0));
-		break;
-	    case 'O':
-		PUSH("@optimize");
-		if (argv[1][2] == '\0')
-		    PUSH("1");
-		else
-		    PUSH(argv[1]+2);
-		break;
 	    case 'p':
 		{
 		    int c = argv[1][2];
 		    
 		    if (c != 'a' && c != 'z') {
-			goto error;
+			PUSH(argv[1]);
 #ifdef __WIN32__
 		    } else if (strcmp(argv[1], "-pause") == 0) {
 			pause_after_execution = 1;
@@ -395,81 +271,21 @@ int main(int argc, char** argv)
 		if (strcmp(argv[1], "-smp") == 0) {
 		    UNSHIFT(argv[1]);
 		} else {
-		    goto error;
-		}
-		break;
-	    case 'v':		/* Verbose. */
-		PUSH2("@verbose", "true");
-		break;
-	    case 'V':
-		/** XXX Version perhaps, but of what? **/
-		break;
-	    case 'W':		/* Enable warnings. */
-		if (strcmp(argv[1]+2, "all") == 0) {
-		    PUSH2("@warn", "999");
-		} else if (strcmp(argv[1]+2, "error") == 0) {
-		    PUSH2("@option", "warnings_as_errors");
-		} else if (isdigit((int)argv[1][2])) {
-		    PUSH2("@warn", argv[1]+2);
-		} else {
-		    PUSH2("@warn", "1");
-		}
-		break;
-	    case 'E':
-	    case 'S':
-	    case 'P':
-		{
-		    char* buf;
-
-		    /* 
-		     * From the given upper-case letter, construct
-		     * a quoted atom.  This is a convenience for the
-		     * Erlang compiler, to avoid fighting with the shell's
-		     * quoting.
-		     */
-
-		    buf = emalloc(4);
-		    buf[0] = '\'';
-		    buf[1] = argv[1][1];
-		    buf[2] = '\'';
-		    buf[3] = '\0';
-
-		    PUSH2("@option", buf);
+		    PUSH(argv[1]);
 		}
 		break;
-
-	    case '-':
-		goto no_more_options;
-
 	    default:
-	    error:
-		usage();
+		PUSH(argv[1]);
 		break;
 	    }
+	    break;
+	default:
+	    PUSH(argv[1]);
+	    break;
 	}
 	argc--, argv++;
     }
 
- no_more_options:
-
-    if (argc <= 1) {
-	/*
-	 * To avoid starting an Erlang system unless absolutely needed
-	 * exit if no files were specified on the command line.
-	 */
-	exit(0);
-    }
-
-    /*
-     * The rest of the command line must be filenames.  Simply push them.
-     */
-
-    PUSH("@files");
-    while (argc > 1) {
-	PUSH(argv[1]);
-	argc--, argv++;
-    }
-
     /*
      * Move up the commands for invoking the emulator and adjust eargv
      * accordingly.
@@ -649,53 +465,6 @@ run_erlang(char* progname, char** argv)
 }
 
 static void
-usage(void)
-{
-    static struct {
-	char* name;
-	char* desc;
-    } options[] = {
-	{"-b type", "type of output file (e.g. jam or beam)"},
-	{"-d", "turn on debugging of erlc itself"},
-	{"-Dname", "define name"},
-	{"-Dname=value", "define name to have value"},
-	{"-help", "shows this help text"},
-	{"-I path", "where to search for include files"},
-	{"-M", "generate a rule for make(1) describing the dependencies"},
-	{"-MF file", "write the dependencies to 'file'"},
-	{"-MT target", "change the target of the rule emitted by dependency "
-		"generation"},
-	{"-MQ target", "same as -MT but quote characters special to make(1)"},
-	{"-MG", "consider missing headers as generated files and add them to "
-		"the dependencies"},
-	{"-MP", "add a phony target for each dependency"},
-	{"-MD", "same as -M -MT file (with default 'file')"},
-	{"-o name", "name output directory or file"},
-	{"-pa path", "add path to the front of Erlang's code path"},
-	{"-pz path", "add path to the end of Erlang's code path"},
-	{"-smp", "compile using SMP emulator"},
-	{"-v", "verbose compiler output"},
-	{"-Werror", "make all warnings into errors"},
-	{"-W0", "disable warnings"},
-	{"-Wnumber", "set warning level to number"},
-	{"-Wall", "enable all warnings"},
-	{"-W", "enable warnings (default; same as -W1)"},
-	{"-E", "generate listing of expanded code (Erlang compiler)"},
-	{"-S", "generate assembly listing (Erlang compiler)"},
-	{"-P", "generate listing of preprocessed code (Erlang compiler)"},
-	{"+term", "pass the Erlang term unchanged to the compiler"},
-    };
-    int i;
-
-    fprintf(stderr, "Usage:\terlc [options] file.ext ...\n");
-    fprintf(stderr, "Options:\n");
-    for (i = 0; i < sizeof(options)/sizeof(options[0]); i++) {
-	fprintf(stderr, "%-14s %s\n", options[i].name, options[i].desc);
-    }
-    exit(1);
-}
-
-static void
 error(char* format, ...)
 {
     char sbuf[1024];
diff --git a/lib/stdlib/src/erl_compile.erl b/lib/stdlib/src/erl_compile.erl
index 8c3d59467b..ed8fea5d78 100644
--- a/lib/stdlib/src/erl_compile.erl
+++ b/lib/stdlib/src/erl_compile.erl
@@ -21,10 +21,12 @@
 -include("erl_compile.hrl").
 -include("file.hrl").
 
--export([compile_cmdline/1]).
+-export([compile_cmdline/0]).
 
 -export_type([cmd_line_arg/0]).
 
+-define(STDERR, standard_error).		%Macro to avoid misspellings.
+
 %% Mapping from extension to {M,F} to run the correct compiler.
 
 compiler(".erl") ->    {compile,         compile};
@@ -47,9 +49,10 @@ compiler(_) ->         no.
 
 -type cmd_line_arg() :: atom() | string().
 
--spec compile_cmdline([cmd_line_arg()]) -> no_return().
+-spec compile_cmdline() -> no_return().
 
-compile_cmdline(List) ->
+compile_cmdline() ->
+    List = init:get_plain_arguments(),
     case compile(List) of
 	ok -> my_halt(0);
 	error -> my_halt(1);
@@ -67,8 +70,12 @@ compile(List) ->
     receive
 	{'EXIT', Pid, {compiler_result, Result}} ->
 	    Result;
+	{'EXIT', Pid, {compiler_error, Error}} ->
+	    io:put_chars(?STDERR, Error),
+	    io:nl(?STDERR),
+	    error;
 	{'EXIT', Pid, Reason} ->
-	    io:format("Runtime error: ~tp~n", [Reason]),
+	    io:format(?STDERR, "Runtime error: ~tp~n", [Reason]),
 	    error
     end.
 
@@ -83,66 +90,178 @@ compiler_runner(List) ->
 
 %% Parses the first part of the option list.
 
-compile1(['@cwd', Cwd|Rest]) ->
-    CwdL = atom_to_list(Cwd),
-    compile1(Rest, CwdL, #options{outdir=CwdL, cwd=CwdL});
 compile1(Args) ->
-    %% From R13B02, the @cwd argument is optional.
     {ok, Cwd} = file:get_cwd(),
-    compile1(Args, Cwd, #options{outdir=Cwd, cwd=Cwd}).
+    compile1(Args, #options{outdir=Cwd,cwd=Cwd}).
 
 %% Parses all options.
 
-compile1(['@i', Dir|Rest], Cwd, Opts) ->
+compile1(["--"|Files], Opts) ->
+    compile2(Files, Opts);
+compile1(["-"++Option|T], Opts) ->
+    parse_generic_option(Option, T, Opts);
+compile1(["+"++Option|Rest], Opts) ->
+    Term = make_term(Option),
+    Specific = Opts#options.specific,
+    compile1(Rest, Opts#options{specific=[Term|Specific]});
+compile1(Files, Opts) ->
+    compile2(Files, Opts).
+
+parse_generic_option("b"++Opt, T0, Opts) ->
+    {OutputType,T} = get_option("b", Opt, T0),
+    compile1(T, Opts#options{output_type=list_to_atom(OutputType)});
+parse_generic_option("D"++Opt, T0, #options{defines=Defs}=Opts) ->
+    {Val0,T} = get_option("D", Opt, T0),
+    {Key0,Val1} = split_at_equals(Val0, []),
+    Key = list_to_atom(Key0),
+    case Val1 of
+	[] ->
+	    compile1(T, Opts#options{defines=[Key|Defs]});
+	Val2 ->
+	    Val = make_term(Val2),
+	    compile1(T, Opts#options{defines=[{Key,Val}|Defs]})
+    end;
+parse_generic_option("help", _, _Opts) ->
+    usage();
+parse_generic_option("I"++Opt, T0, #options{cwd=Cwd}=Opts) ->
+    {Dir,T} = get_option("I", Opt, T0),
     AbsDir = filename:absname(Dir, Cwd),
-    compile1(Rest, Cwd, Opts#options{includes=[AbsDir|Opts#options.includes]});
-compile1(['@outdir', Dir|Rest], Cwd, Opts) ->
+    compile1(T, Opts#options{includes=[AbsDir|Opts#options.includes]});
+parse_generic_option("M"++Opt, T0, #options{specific=Spec}=Opts) ->
+    case parse_dep_option(Opt, T0) of
+	error ->
+	    error;
+	{SpecOpts,T} ->
+	    compile1(T, Opts#options{specific=SpecOpts++Spec})
+    end;
+parse_generic_option("o"++Opt, T0, #options{cwd=Cwd}=Opts) ->
+    {Dir,T} = get_option("o", Opt, T0),
     AbsName = filename:absname(Dir, Cwd),
     case file_or_directory(AbsName) of
 	file ->
-	    compile1(Rest, Cwd, Opts#options{outfile=AbsName});
+	    compile1(T, Opts#options{outfile=AbsName});
 	directory ->
-	    compile1(Rest, Cwd, Opts#options{outdir=AbsName})
+	    compile1(T, Opts#options{outdir=AbsName})
     end;
-compile1(['@d', Name|Rest], Cwd, Opts) ->
-    Defines = Opts#options.defines,
-    compile1(Rest, Cwd, Opts#options{defines=[Name|Defines]});
-compile1(['@dv', Name, Term|Rest], Cwd, Opts) ->
-    Defines = Opts#options.defines,
-    Value = make_term(atom_to_list(Term)),
-    compile1(Rest, Cwd, Opts#options{defines=[{Name, Value}|Defines]});
-compile1(['@warn', Level0|Rest], Cwd, Opts) ->
-    case catch list_to_integer(atom_to_list(Level0)) of
-	Level when is_integer(Level) ->
-	    compile1(Rest, Cwd, Opts#options{warning=Level});
+parse_generic_option("O"++Opt, T, Opts) ->
+    case Opt of
+	"" ->
+	    compile1(T, Opts#options{optimize=1});
 	_ ->
-	    compile1(Rest, Cwd, Opts)
+	    Term = make_term(Opt),
+	    compile1(T, Opts#options{optimize=Term})
     end;
-compile1(['@verbose', false|Rest], Cwd, Opts) ->
-    compile1(Rest, Cwd, Opts#options{verbose=false});
-compile1(['@verbose', true|Rest], Cwd, Opts) ->
-    compile1(Rest, Cwd, Opts#options{verbose=true});
-compile1(['@optimize', Atom|Rest], Cwd, Opts) ->
-    Term = make_term(atom_to_list(Atom)),
-    compile1(Rest, Cwd, Opts#options{optimize=Term});
-compile1(['@option', Atom|Rest], Cwd, Opts) ->
-    Term = make_term(atom_to_list(Atom)),
-    Specific = Opts#options.specific,
-    compile1(Rest, Cwd, Opts#options{specific=[Term|Specific]});
-compile1(['@output_type', OutputType|Rest], Cwd, Opts) ->
-    compile1(Rest, Cwd, Opts#options{output_type=OutputType});
-compile1(['@files'|Rest], Cwd, Opts) ->
-    Includes = lists:reverse(Opts#options.includes),
-    compile2(Rest, Cwd, Opts#options{includes=Includes}).
-
-compile2(Files, Cwd, Opts) ->
-    case {Opts#options.outfile, length(Files)} of
+parse_generic_option("v", T, Opts) ->
+    compile1(T, Opts#options{verbose=true});
+parse_generic_option("W"++Warn, T, #options{specific=Spec}=Opts) ->
+    case Warn of
+	"all" ->
+	    compile1(T, Opts#options{warning=999});
+	"error" ->
+	    compile1(T, Opts#options{specific=[warnings_as_errors|Spec]});
+	"" ->
+	    compile1(T, Opts#options{warning=1});
+	_ ->
+	    try	list_to_integer(Warn) of
+		Level ->
+		    compile1(T, Opts#options{warning=Level})
+	    catch
+		error:badarg ->
+		    usage()
+	    end
+    end;
+parse_generic_option("E", T, #options{specific=Spec}=Opts) ->
+    compile1(T, Opts#options{specific=['E'|Spec]});
+parse_generic_option("P", T, #options{specific=Spec}=Opts) ->
+    compile1(T, Opts#options{specific=['P'|Spec]});
+parse_generic_option("S", T, #options{specific=Spec}=Opts) ->
+    compile1(T, Opts#options{specific=['S'|Spec]});
+parse_generic_option(Option, _T, _Opts) ->
+    io:format(?STDERR, "Unknown option: -~s\n", [Option]),
+    usage().
+
+parse_dep_option("", T) ->
+    {[makedep,{makedep_output,standard_io}],T};
+parse_dep_option("D", T) ->
+    {[makedep],T};
+parse_dep_option("F"++Opt, T0) ->
+    {File,T} = get_option("MF", Opt, T0),
+    {[makedep,{makedep_output,File}],T};
+parse_dep_option("G", T) ->
+    {[makedep_add_missing],T};
+parse_dep_option("P", T) ->
+    {[makedep_phony],T};
+parse_dep_option("Q"++Opt, T0) ->
+    {Target,T} = get_option("MT", Opt, T0),
+    {[makedep_quote_target,{makedep_target,Target}],T};
+parse_dep_option("T"++Opt, T0) ->
+    {Target,T} = get_option("MT", Opt, T0),
+    {[{makedep_target,Target}],T};
+parse_dep_option(Opt, _T) ->
+    io:format(?STDERR, "Unknown option: -M~s\n", [Opt]),
+    usage().
+
+usage() ->
+    H = [{"-b type","type of output file (e.g. beam)"},
+	 {"-d","turn on debugging of erlc itself"},
+	 {"-Dname","define name"},
+	 {"-Dname=value","define name to have value"},
+	 {"-help","shows this help text"},
+	 {"-I path","where to search for include files"},
+	 {"-M","generate a rule for make(1) describing the dependencies"},
+	 {"-MF file","write the dependencies to 'file'"},
+	 {"-MT target","change the target of the rule emitted by dependency "
+	  "generation"},
+	 {"-MQ target","same as -MT but quote characters special to make(1)"},
+	 {"-MG","consider missing headers as generated files and add them to "
+	  "the dependencies"},
+	 {"-MP","add a phony target for each dependency"},
+	 {"-MD","same as -M -MT file (with default 'file')"},
+	 {"-o name","name output directory or file"},
+	 {"-pa path","add path to the front of Erlang's code path"},
+	 {"-pz path","add path to the end of Erlang's code path"},
+	 {"-smp","compile using SMP emulator"},
+	 {"-v","verbose compiler output"},
+	 {"-Werror","make all warnings into errors"},
+	 {"-W0","disable warnings"},
+	 {"-Wnumber","set warning level to number"},
+	 {"-Wall","enable all warnings"},
+	 {"-W","enable warnings (default; same as -W1)"},
+	 {"-E","generate listing of expanded code (Erlang compiler)"},
+	 {"-S","generate assembly listing (Erlang compiler)"},
+	 {"-P","generate listing of preprocessed code (Erlang compiler)"},
+	 {"+term","pass the Erlang term unchanged to the compiler"}],
+    io:put_chars(?STDERR,
+		 ["Usage: erlc [Options] file.ext ...\n",
+		  "Options:\n",
+		  [io_lib:format("~-14s ~s\n", [K,D]) || {K,D} <- H]]),
+    error.
+
+get_option(_Name, [], [[C|_]=Option|T]) when C =/= $- ->
+    {Option,T};
+get_option(_Name, [_|_]=Option, T) ->
+    {Option,T};
+get_option(Name, _, _) ->
+    exit({compiler_error,"No value given to -"++Name++" option"}).
+
+split_at_equals([$=|T], Acc) ->
+    {lists:reverse(Acc),T};
+split_at_equals([H|T], Acc) ->
+    split_at_equals(T, [H|Acc]);
+split_at_equals([], Acc) ->
+    {lists:reverse(Acc),[]}.
+
+compile2(Files, #options{cwd=Cwd,includes=Incl,outfile=Outfile}=Opts0) ->
+    Opts = Opts0#options{includes=lists:reverse(Incl)},
+    case {Outfile,length(Files)} of
 	{"", _} ->
 	    compile3(Files, Cwd, Opts);
 	{[_|_], 1} ->
 	    compile3(Files, Cwd, Opts);
 	{[_|_], _N} ->
-	    io:format("Output file name given, but more than one input file.~n"),
+	    io:put_chars(?STDERR,
+			 "Output file name given, "
+			 "but more than one input file.\n"),
 	    error
     end.
 
@@ -170,23 +289,25 @@ compile3([], _Cwd, _Options) -> ok.
 %% Invokes the appropriate compiler, depending on the file extension.
 
 compile_file("", Input, _Output, _Options) ->
-    io:format("File has no extension: ~ts~n", [Input]),
+    io:format(?STDERR, "File has no extension: ~ts~n", [Input]),
     error;
 compile_file(Ext, Input, Output, Options) ->
     case compiler(Ext) of
 	no ->
-	    io:format("Unknown extension: '~ts'\n", [Ext]),
+	    io:format(?STDERR, "Unknown extension: '~ts'\n", [Ext]),
 	    error;
 	{M, F} ->
 	    case catch M:F(Input, Output, Options) of
 		ok -> ok;
 		error -> error;
 		{'EXIT',Reason} ->
-		    io:format("Compiler function ~w:~w/3 failed:\n~p~n",
+		    io:format(?STDERR,
+			      "Compiler function ~w:~w/3 failed:\n~p~n",
 			      [M,F,Reason]),
 		    error;
 		Other ->
-		    io:format("Compiler function ~w:~w/3 returned:\n~p~n",
+		    io:format(?STDERR,
+			      "Compiler function ~w:~w/3 returned:\n~p~n",
 			      [M,F,Other]),
 		    error
 	    end
@@ -215,10 +336,10 @@ make_term(Str) ->
 	    case erl_parse:parse_term(Tokens ++ [{dot, 1}]) of
 		{ok, Term} -> Term;
 		{error, {_,_,Reason}} ->
-		    io:format("~ts: ~ts~n", [Reason, Str]),
+		    io:format(?STDERR, "~ts: ~ts~n", [Reason, Str]),
 		    throw(error)
 	    end;
 	{error, {_,_,Reason}, _} ->
-	    io:format("~ts: ~ts~n", [Reason, Str]),
+	    io:format(?STDERR, "~ts: ~ts~n", [Reason, Str]),
 	    throw(error)
     end.