import the Slacker's QVM code base

2 files changed, 877 insertions, 0 deletions

diff --git a/src/tools/lcc/etc/bytecode.c b/src/tools/lcc/etc/bytecode.c
new file mode 100644
index 0000000..fe4178f
--- /dev/null
+++ b/src/tools/lcc/etc/bytecode.c
@@ -0,0 +1,66 @@
+/* quake3 bytecode target */
+
+#include <string.h>
+#include <stdio.h>
+#include "../../../qcommon/q_platform.h"
+
+#ifdef _WIN32
+#define BINEXT ".exe"
+#else
+#define BINEXT ""
+#endif
+
+char *suffixes[] = { ".c", ".i", ".asm", ".o", ".out", 0 };
+char inputs[256] = "";
+char *cpp[] = { "q3cpp" BINEXT,
+	"-D__STDC__=1", "-D__STRICT_ANSI__", "-D__signed__=signed", "-DQ3_VM",
+	"$1", "$2", "$3", 0 };
+char *include[] = { 0 };
+char *com[] = { "q3rcc" BINEXT, "-target=bytecode", "$1", "$2", "$3", 0 };
+char *ld[] = { 0 };
+char *as[] = { 0 };
+
+extern char *concat(char *, char *);
+
+/*
+===============
+UpdatePaths
+
+Updates the paths to q3cpp and q3rcc based on
+the directory that contains q3lcc
+===============
+*/
+void UpdatePaths( const char *lccBinary )
+{
+	char basepath[ 1024 ];
+	char *p;
+
+	strncpy( basepath, lccBinary, 1024 );
+	p = strrchr( basepath, PATH_SEP );
+
+	if( p )
+	{
+		*( p + 1 ) = '\0';
+
+		cpp[ 0 ] = concat( basepath, "q3cpp" BINEXT );
+		com[ 0 ] = concat( basepath, "q3rcc" BINEXT );
+	}
+}
+
+int option(char *arg) {
+	if (strncmp(arg, "-lccdir=", 8) == 0) {
+		cpp[0] = concat(&arg[8], "/q3cpp" BINEXT);
+		include[0] = concat("-I", concat(&arg[8], "/include"));
+		com[0] = concat(&arg[8], "/q3rcc" BINEXT);
+	} else if (strcmp(arg, "-p") == 0 || strcmp(arg, "-pg") == 0) {
+		fprintf( stderr, "no profiling supported, %s ignored.\n", arg);
+	} else if (strcmp(arg, "-b") == 0)
+		;
+	else if (strcmp(arg, "-g") == 0)
+		fprintf( stderr, "no debugging supported, %s ignored.\n", arg);
+	else if (strncmp(arg, "-ld=", 4) == 0 || strcmp(arg, "-static") == 0) {
+		fprintf( stderr, "no linking supported, %s ignored.\n", arg);
+	} else
+		return 0;
+	return 1;
+}
diff --git a/src/tools/lcc/etc/lcc.c b/src/tools/lcc/etc/lcc.c
new file mode 100644
index 0000000..cac01b9
--- /dev/null
+++ b/src/tools/lcc/etc/lcc.c
@@ -0,0 +1,811 @@
+/*
+ * lcc [ option ]... [ file | -llib ]...
+ * front end for the ANSI C compiler
+ */
+static char rcsid[] = "Id: dummy rcsid";
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include <signal.h>
+#include <unistd.h>
+
+#ifndef TEMPDIR
+#define TEMPDIR "/tmp"
+#endif
+
+typedef struct list *List;
+struct list {		/* circular list nodes: */
+	char *str;		/* option or file name */
+	List link;		/* next list element */
+};
+
+static void *alloc(int);
+static List append(char *,List);
+extern char *basename(char *);
+static int callsys(char *[]);
+extern char *concat(char *, char *);
+static int compile(char *, char *);
+static void compose(char *[], List, List, List);
+static void error(char *, char *);
+static char *exists(char *);
+static char *first(char *);
+static int filename(char *, char *);
+static List find(char *, List);
+static void help(void);
+static void initinputs(void);
+static void interrupt(int);
+static void opt(char *);
+static List path2list(const char *);
+extern int main(int, char *[]);
+extern char *replace(const char *, int, int);
+static void rm(List);
+extern char *strsave(const char *);
+extern char *stringf(const char *, ...);
+extern int suffix(char *, char *[], int);
+extern char *tempname(char *);
+
+#ifndef __sun
+extern int getpid(void);
+#endif
+
+extern char *cpp[], *include[], *com[], *as[],*ld[], inputs[], *suffixes[];
+extern int option(char *);
+
+static int errcnt;		/* number of errors */
+static int Eflag;		/* -E specified */
+static int Sflag = 1;		/* -S specified */ //for Q3 we always generate asm
+static int cflag;		/* -c specified */
+static int verbose;		/* incremented for each -v */
+static List llist[2];		/* loader files, flags */
+static List alist;		/* assembler flags */
+static List clist;		/* compiler flags */
+static List plist;		/* preprocessor flags */
+static List ilist;		/* list of additional includes from LCCINPUTS */
+static List rmlist;		/* list of files to remove */
+static char *outfile;		/* ld output file or -[cS] object file */
+static int ac;			/* argument count */
+static char **av;		/* argument vector */
+char *tempdir = TEMPDIR;	/* directory for temporary files */
+static char *progname;
+static List lccinputs;		/* list of input directories */
+
+extern void UpdatePaths( const char *lccBinary );
+
+int main(int argc, char *argv[]) {
+	int i, j, nf;
+
+	progname = argv[0];
+
+	UpdatePaths( progname );
+
+	ac = argc + 50;
+	av = alloc(ac*sizeof(char *));
+	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
+		signal(SIGINT, interrupt);
+	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
+		signal(SIGTERM, interrupt);
+#ifdef SIGHUP
+	if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
+		signal(SIGHUP, interrupt);
+#endif
+	if (getenv("TMP"))
+		tempdir = getenv("TMP");
+	else if (getenv("TEMP"))
+		tempdir = getenv("TEMP");
+	else if (getenv("TMPDIR"))
+		tempdir = getenv("TMPDIR");
+	assert(tempdir);
+	i = strlen(tempdir);
+	for (; (i > 0 && tempdir[i-1] == '/') || tempdir[i-1] == '\\'; i--)
+		tempdir[i-1] = '\0';
+	if (argc <= 1) {
+		help();
+		exit(0);
+	}
+	plist = append("-D__LCC__", 0);
+	initinputs();
+	if (getenv("LCCDIR"))
+		option(stringf("-lccdir=%s", getenv("LCCDIR")));
+	for (nf = 0, i = j = 1; i < argc; i++) {
+		if (strcmp(argv[i], "-o") == 0) {
+			if (++i < argc) {
+				if (suffix(argv[i], suffixes, 2) >= 0) {
+					error("-o would overwrite %s", argv[i]);
+					exit(8);
+				}
+				outfile = argv[i];
+				continue;
+			} else {
+				error("unrecognized option `%s'", argv[i-1]);
+				exit(8);
+			}
+		} else if (strcmp(argv[i], "-target") == 0) {
+			if (argv[i+1] && *argv[i+1] != '-')
+				i++;
+			continue;
+		} else if (*argv[i] == '-' && argv[i][1] != 'l') {
+			opt(argv[i]);
+			continue;
+		} else if (*argv[i] != '-' && suffix(argv[i], suffixes, 3) >= 0)
+			nf++;
+		argv[j++] = argv[i];
+	}
+	if ((cflag || Sflag) && outfile && nf != 1) {
+		fprintf(stderr, "%s: -o %s ignored\n", progname, outfile);
+		outfile = 0;
+	}
+	argv[j] = 0;
+	for (i = 0; include[i]; i++)
+		plist = append(include[i], plist);
+	if (ilist) {
+		List b = ilist;
+		do {
+			b = b->link;
+			plist = append(b->str, plist);
+		} while (b != ilist);
+	}
+	ilist = 0;
+	for (i = 1; argv[i]; i++)
+		if (*argv[i] == '-')
+			opt(argv[i]);
+		else {
+			char *name = exists(argv[i]);
+			if (name) {
+				if (strcmp(name, argv[i]) != 0
+				|| (nf > 1 && suffix(name, suffixes, 3) >= 0))
+					fprintf(stderr, "%s:\n", name);
+				filename(name, 0);
+			} else
+				error("can't find `%s'", argv[i]);
+		}
+	if (errcnt == 0 && !Eflag && !Sflag && !cflag && llist[1]) {
+		compose(ld, llist[0], llist[1],
+			append(outfile ? outfile : concat("a", first(suffixes[4])), 0));
+		if (callsys(av))
+			errcnt++;
+	}
+	rm(rmlist);	
+	return errcnt ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+/* alloc - allocate n bytes or die */
+static void *alloc(int n) {
+	static char *avail, *limit;
+	
+	n = (n + sizeof(char *) - 1)&~(sizeof(char *) - 1);
+	if (n >= limit - avail) {
+		avail = malloc(n + 4*1024);
+		assert(avail);
+		limit = avail + n + 4*1024;
+	}
+	avail += n;
+	return avail - n;
+}
+
+/* append - append a node with string str onto list, return new list */	
+static List append(char *str, List list) {
+	List p = alloc(sizeof *p);
+
+	p->str = str;
+	if (list) {
+		p->link = list->link;
+		list->link = p;
+	} else
+		p->link = p;
+	return p;
+}
+
+/* basename - return base name for name, e.g. /usr/drh/foo.c => foo */
+char *basename(char *name) {
+	char *s, *b, *t = 0;
+
+	for (b = s = name; *s; s++)
+		if (*s == '/' || *s == '\\') {
+			b = s + 1;
+			t = 0;
+		} else if (*s == '.')
+			t = s;
+	s = strsave(b);
+	if (t)
+		s[t-b] = 0;
+	return s;
+}
+
+#ifdef WIN32
+#include <process.h>
+#else
+#define _P_WAIT 0
+#ifndef __sun
+extern int fork(void);
+#endif
+extern int wait(int *);
+
+static int _spawnvp(int mode, const char *cmdname, char *argv[]) {
+	int pid, n, status;
+
+	switch (pid = fork()) {
+	case -1:
+		fprintf(stderr, "%s: no more processes\n", progname);
+		return 100;
+	case 0:
+		// TTimo removing hardcoded paths, searching in $PATH
+		execvp(cmdname, argv);
+		fprintf(stderr, "%s: ", progname);
+		perror(cmdname);
+		fflush(stdout);
+		exit(100);
+	}
+	while ((n = wait(&status)) != pid && n != -1)
+		;
+	if (n == -1)
+		status = -1;
+	if (status&0377) {
+		fprintf(stderr, "%s: fatal error in %s\n", progname, cmdname);
+		status |= 0400;
+	}
+	return (status>>8)&0377;
+}
+#endif
+
+/* callsys - execute the command described by av[0...], return status */
+static int callsys(char **av) {
+	int i, status = 0;
+	static char **argv;
+	static int argc;
+	char *executable;
+
+	for (i = 0; av[i] != NULL; i++)
+		;
+	if (i + 1 > argc) {
+		argc = i + 1;
+		if (argv == NULL)
+			argv = malloc(argc*sizeof *argv);
+		else
+			argv = realloc(argv, argc*sizeof *argv);
+		assert(argv);
+	}
+	for (i = 0; status == 0 && av[i] != NULL; ) {
+		int j = 0;
+		char *s = NULL;
+		for ( ; av[i] != NULL && (s = strchr(av[i], '\n')) == NULL; i++)
+			argv[j++] = av[i];
+		if (s != NULL) {
+			if (s > av[i])
+				argv[j++] = stringf("%.*s", s - av[i], av[i]);
+			if (s[1] != '\0')
+				av[i] = s + 1;
+			else
+				i++;
+		}
+		argv[j] = NULL;
+		executable = strsave( argv[0] );
+		argv[0] = stringf( "\"%s\"", argv[0] );
+		if (verbose > 0) {
+			int k;
+			fprintf(stderr, "%s", argv[0]);
+			for (k = 1; argv[k] != NULL; k++)
+				fprintf(stderr, " %s", argv[k]);
+			fprintf(stderr, "\n");
+		}
+		if (verbose < 2)
+#ifndef WIN32
+			status = _spawnvp(_P_WAIT, executable, argv);
+#else
+			status = _spawnvp(_P_WAIT, executable, (const char* const*)argv);
+#endif
+		if (status == -1) {
+			fprintf(stderr, "%s: ", progname);
+			perror(argv[0]);
+		}
+	}
+	return status;
+}
+
+/* concat - return concatenation of strings s1 and s2 */
+char *concat(char *s1, char *s2) {
+	int n = strlen(s1);
+	char *s = alloc(n + strlen(s2) + 1);
+
+	strcpy(s, s1);
+	strcpy(s + n, s2);
+	return s;
+}
+
+/* compile - compile src into dst, return status */
+static int compile(char *src, char *dst) {
+	compose(com, clist, append(src, 0), append(dst, 0));
+	return callsys(av);
+}
+
+/* compose - compose cmd into av substituting a, b, c for $1, $2, $3, resp. */
+static void compose(char *cmd[], List a, List b, List c) {
+	int i, j;
+	List lists[3];
+
+	lists[0] = a;
+	lists[1] = b;
+	lists[2] = c;
+	for (i = j = 0; cmd[i]; i++) {
+		char *s = strchr(cmd[i], '$');
+		if (s && isdigit(s[1])) {
+			int k = s[1] - '0';
+			assert(k >=1 && k <= 3);
+			if ((b = lists[k-1])) {
+				b = b->link;
+				av[j] = alloc(strlen(cmd[i]) + strlen(b->str) - 1);
+				strncpy(av[j], cmd[i], s - cmd[i]);
+				av[j][s-cmd[i]] = '\0';
+				strcat(av[j], b->str);
+				strcat(av[j++], s + 2);
+				while (b != lists[k-1]) {
+					b = b->link;
+					assert(j < ac);
+					av[j++] = b->str;
+				};
+			}
+		} else if (*cmd[i]) {
+			assert(j < ac);
+			av[j++] = cmd[i];
+		}
+	}
+	av[j] = NULL;
+}
+
+/* error - issue error msg according to fmt, bump error count */
+static void error(char *fmt, char *msg) {
+	fprintf(stderr, "%s: ", progname);
+	fprintf(stderr, fmt, msg);
+	fprintf(stderr, "\n");
+	errcnt++;
+}
+
+/* exists - if `name' readable return its path name or return null */
+static char *exists(char *name) {
+	List b;
+
+	if ( (name[0] == '/' || name[0] == '\\' || name[2] == ':')
+	&& access(name, 4) == 0)
+		return name;
+	if (!(name[0] == '/' || name[0] == '\\' || name[2] == ':')
+	&& (b = lccinputs))		
+		do {
+			b = b->link;
+			if (b->str[0]) {
+				char buf[1024];
+				sprintf(buf, "%s/%s", b->str, name);
+				if (access(buf, 4) == 0)
+					return strsave(buf);
+			} else if (access(name, 4) == 0)
+				return name;
+		} while (b != lccinputs);
+	if (verbose > 1)
+		return name;
+	return 0;
+}
+
+/* first - return first component in semicolon separated list */
+static char *first(char *list) {
+	char *s = strchr(list, ';');
+
+	if (s) {
+		char buf[1024];
+		strncpy(buf, list, s-list);
+		buf[s-list] = '\0';
+		return strsave(buf);
+	} else
+		return list;
+}
+
+/* filename - process file name argument `name', return status */
+static int filename(char *name, char *base) {
+	int status = 0;
+	static char *stemp, *itemp;
+
+	if (base == 0)
+		base = basename(name);
+	switch (suffix(name, suffixes, 4)) {
+	case 0:	/* C source files */
+		compose(cpp, plist, append(name, 0), 0);
+		if (Eflag) {
+			status = callsys(av);
+			break;
+		}
+		if (itemp == NULL)
+			itemp = tempname(first(suffixes[1]));
+		compose(cpp, plist, append(name, 0), append(itemp, 0));
+		status = callsys(av);
+		if (status == 0)
+			return filename(itemp, base);
+		break;
+	case 1:	/* preprocessed source files */
+		if (Eflag)
+			break;
+		if (Sflag)
+			status = compile(name, outfile ? outfile : concat(base, first(suffixes[2])));
+		else if ((status = compile(name, stemp?stemp:(stemp=tempname(first(suffixes[2]))))) == 0)
+			return filename(stemp, base);
+		break;
+	case 2:	/* assembly language files */
+		if (Eflag)
+			break;
+		if (!Sflag) {
+			char *ofile;
+			if (cflag && outfile)
+				ofile = outfile;
+			else if (cflag)
+				ofile = concat(base, first(suffixes[3]));
+			else
+				ofile = tempname(first(suffixes[3]));
+			compose(as, alist, append(name, 0), append(ofile, 0));
+			status = callsys(av);
+			if (!find(ofile, llist[1]))
+				llist[1] = append(ofile, llist[1]);
+		}
+		break;
+	case 3:	/* object files */
+		if (!find(name, llist[1]))
+			llist[1] = append(name, llist[1]);
+		break;
+	default:
+		if (Eflag) {
+			compose(cpp, plist, append(name, 0), 0);
+			status = callsys(av);
+		}
+		llist[1] = append(name, llist[1]);
+		break;
+	}
+	if (status)
+		errcnt++;
+	return status;
+}
+
+/* find - find 1st occurrence of str in list, return list node or 0 */
+static List find(char *str, List list) {
+	List b;
+	
+	if ((b = list))
+		do {
+			if (strcmp(str, b->str) == 0)
+				return b;
+		} while ((b = b->link) != list);
+	return 0;
+}
+
+/* help - print help message */
+static void help(void) {
+	static char *msgs[] = {
+"", " [ option | file ]...\n",
+"	except for -l, options are processed left-to-right before files\n",
+"	unrecognized options are taken to be linker options\n",
+"-A	warn about nonANSI usage; 2nd -A warns more\n",
+"-b	emit expression-level profiling code; see bprint(1)\n",
+#ifdef sparc
+"-Bstatic -Bdynamic	specify static or dynamic libraries\n",
+#endif
+"-Bdir/	use the compiler named `dir/rcc'\n",
+"-c	compile only\n",
+"-dn	set switch statement density to `n'\n",
+"-Dname -Dname=def	define the preprocessor symbol `name'\n",
+"-E	run only the preprocessor on the named C programs and unsuffixed files\n",
+"-g	produce symbol table information for debuggers\n",
+"-help or -?	print this message\n",
+"-Idir	add `dir' to the beginning of the list of #include directories\n",	
+"-lx	search library `x'\n",
+"-N	do not search the standard directories for #include files\n",
+"-n	emit code to check for dereferencing zero pointers\n",
+"-O	is ignored\n",
+"-o file	leave the output in `file'\n",
+"-P	print ANSI-style declarations for globals\n",
+"-p -pg	emit profiling code; see prof(1) and gprof(1)\n",
+"-S	compile to assembly language\n",
+#ifdef linux
+"-static	specify static libraries (default is dynamic)\n",
+#endif
+"-t -tname	emit function tracing calls to printf or to `name'\n",
+"-target name	is ignored\n",
+"-tempdir=dir	place temporary files in `dir/'", "\n"
+"-Uname	undefine the preprocessor symbol `name'\n",
+"-v	show commands as they are executed; 2nd -v suppresses execution\n",
+"-w	suppress warnings\n",
+"-Woarg	specify system-specific `arg'\n",
+"-W[pfal]arg	pass `arg' to the preprocessor, compiler, assembler, or linker\n",
+	0 };
+	int i;
+	char *s;
+
+	msgs[0] = progname;
+	for (i = 0; msgs[i]; i++) {
+		fprintf(stderr, "%s", msgs[i]);
+		if (strncmp("-tempdir", msgs[i], 8) == 0 && tempdir)
+			fprintf(stderr, "; default=%s", tempdir);
+	}
+#define xx(v) if ((s = getenv(#v))) fprintf(stderr, #v "=%s\n", s)
+	xx(LCCINPUTS);
+	xx(LCCDIR);
+#ifdef WIN32
+	xx(include);
+	xx(lib);
+#endif
+#undef xx
+}
+
+/* initinputs - if LCCINPUTS or include is defined, use them to initialize various lists */
+static void initinputs(void) {
+	char *s = getenv("LCCINPUTS");
+	List b;
+#ifdef WIN32
+	List list;
+#endif
+
+	if (s == 0 || (s = inputs)[0] == 0)
+		s = ".";
+	if (s) {
+		lccinputs = path2list(s);
+		if ((b = lccinputs))
+			do {
+				b = b->link;
+				if (strcmp(b->str, ".") != 0) {
+					ilist = append(concat("-I", b->str), ilist);
+					if (strstr(com[1], "win32") == NULL)
+						llist[0] = append(concat("-L", b->str), llist[0]);
+				} else
+					b->str = "";
+			} while (b != lccinputs);
+	}
+#ifdef WIN32
+	if ((list = b = path2list(getenv("include"))))
+		do {
+			b = b->link;
+			ilist = append(stringf("-I\"%s\"", b->str), ilist);
+		} while (b != list);
+#endif
+}
+
+/* interrupt - catch interrupt signals */
+static void interrupt(int n) {
+	rm(rmlist);
+	exit(n = 100);
+}
+
+/* opt - process option in arg */
+static void opt(char *arg) {
+	switch (arg[1]) {	/* multi-character options */
+	case 'W':	/* -Wxarg */
+		if (arg[2] && arg[3])
+			switch (arg[2]) {
+			case 'o':
+				if (option(&arg[3]))
+					return;
+				break;
+			case 'p':
+				plist = append(&arg[3], plist);
+				return;
+			case 'f':
+				if (strcmp(&arg[3], "-C") || option("-b")) {
+					clist = append(&arg[3], clist);
+					return;
+				}
+				break; /* and fall thru */
+			case 'a':
+				alist = append(&arg[3], alist);
+				return;
+			case 'l':
+				llist[0] = append(&arg[3], llist[0]);
+				return;
+			}
+		fprintf(stderr, "%s: %s ignored\n", progname, arg);
+		return;
+	case 'd':	/* -dn */
+		arg[1] = 's';
+		clist = append(arg, clist);
+		return;
+	case 't':	/* -t -tname -tempdir=dir */
+		if (strncmp(arg, "-tempdir=", 9) == 0)
+			tempdir = arg + 9;
+		else
+			clist = append(arg, clist);
+		return;
+	case 'p':	/* -p -pg */
+		if (option(arg))
+			clist = append(arg, clist);
+		else
+			fprintf(stderr, "%s: %s ignored\n", progname, arg);
+		return;
+	case 'D':	/* -Dname -Dname=def */
+	case 'U':	/* -Uname */
+	case 'I':	/* -Idir */
+		plist = append(arg, plist);
+		return;
+	case 'B':	/* -Bdir -Bstatic -Bdynamic */
+#ifdef sparc
+		if (strcmp(arg, "-Bstatic") == 0 || strcmp(arg, "-Bdynamic") == 0)
+			llist[1] = append(arg, llist[1]);
+		else
+#endif	
+		{
+		static char *path;
+		if (path)
+			error("-B overwrites earlier option", 0);
+		path = arg + 2;
+		if (strstr(com[1], "win32") != NULL)
+			com[0] = concat(replace(path, '/', '\\'), concat("rcc", first(suffixes[4])));
+		else
+			com[0] = concat(path, "rcc");
+		if (path[0] == 0)
+			error("missing directory in -B option", 0);
+		}
+		return;
+	case 'h':
+		if (strcmp(arg, "-help") == 0) {
+			static int printed = 0;
+	case '?':
+			if (!printed)
+				help();
+			printed = 1;
+			return;
+		}
+#ifdef linux
+	case 's':
+		if (strcmp(arg,"-static") == 0) {
+			if (!option(arg))
+				fprintf(stderr, "%s: %s ignored\n", progname, arg);
+			return;
+		}
+#endif         
+	}
+	if (arg[2] == 0)
+		switch (arg[1]) {	/* single-character options */
+		case 'S':
+			Sflag++;
+			return;
+		case 'O':
+			fprintf(stderr, "%s: %s ignored\n", progname, arg);
+			return;
+		case 'A': case 'n': case 'w': case 'P':
+			clist = append(arg, clist);
+			return;
+		case 'g': case 'b':
+			if (option(arg))
+				clist = append(arg[1] == 'g' ? "-g2" : arg, clist);
+			else
+				fprintf(stderr, "%s: %s ignored\n", progname, arg);
+			return;
+		case 'G':
+			if (option(arg)) {
+				clist = append("-g3", clist);
+				llist[0] = append("-N", llist[0]);
+			} else
+				fprintf(stderr, "%s: %s ignored\n", progname, arg);
+			return;
+		case 'E':
+			Eflag++;
+			return;
+		case 'c':
+			cflag++;
+			return;
+		case 'N':
+			if (strcmp(basename(cpp[0]), "gcc-cpp") == 0)
+				plist = append("-nostdinc", plist);
+			include[0] = 0;
+			ilist = 0;
+			return;
+		case 'v':
+			if (verbose++ == 0) {
+				if (strcmp(basename(cpp[0]), "gcc-cpp") == 0)
+					plist = append(arg, plist);
+				clist = append(arg, clist);
+				fprintf(stderr, "%s %s\n", progname, rcsid);
+			}
+			return;
+		}
+	if (cflag || Sflag || Eflag)
+		fprintf(stderr, "%s: %s ignored\n", progname, arg);
+	else
+		llist[1] = append(arg, llist[1]);
+}
+
+/* path2list - convert a colon- or semicolon-separated list to a list */
+static List path2list(const char *path) {
+	List list = NULL;
+	char sep = ':';
+
+	if (path == NULL)
+		return NULL;
+	if (strchr(path, ';'))
+		sep = ';';
+	while (*path) {
+		char *p, buf[512];
+		if ((p = strchr(path, sep))) {
+			assert(p - path < sizeof buf);
+			strncpy(buf, path, p - path);
+			buf[p-path] = '\0';
+		} else {
+			assert(strlen(path) < sizeof buf);
+			strcpy(buf, path);
+		}
+		if (!find(buf, list))
+			list = append(strsave(buf), list);
+		if (p == 0)
+			break;
+		path = p + 1;
+	}
+	return list;
+}
+
+/* replace - copy str, then replace occurrences of from with to, return the copy */
+char *replace(const char *str, int from, int to) {
+	char *s = strsave(str), *p = s;
+
+	for ( ; (p = strchr(p, from)) != NULL; p++)
+		*p = to;
+	return s;
+}
+
+/* rm - remove files in list */
+static void rm(List list) {
+	if (list) {
+		List b = list;
+		if (verbose)
+			fprintf(stderr, "rm");
+		do {
+			if (verbose)
+				fprintf(stderr, " %s", b->str);
+			if (verbose < 2)
+				remove(b->str);
+		} while ((b = b->link) != list);
+		if (verbose)
+			fprintf(stderr, "\n");
+	}
+}
+
+/* strsave - return a saved copy of string str */
+char *strsave(const char *str) {
+	return strcpy(alloc(strlen(str)+1), str);
+}
+
+/* stringf - format and return a string */
+char *stringf(const char *fmt, ...) {
+	char buf[1024];
+	va_list ap;
+	int n;
+
+	va_start(ap, fmt);
+	n = vsprintf(buf, fmt, ap);
+	va_end(ap);
+	return strsave(buf);
+}
+
+/* suffix - if one of tails[0..n-1] holds a proper suffix of name, return its index */
+int suffix(char *name, char *tails[], int n) {
+	int i, len = strlen(name);
+
+	for (i = 0; i < n; i++) {
+		char *s = tails[i], *t;
+		for ( ; (t = strchr(s, ';')); s = t + 1) {
+			int m = t - s;
+			if (len > m && strncmp(&name[len-m], s, m) == 0)
+				return i;
+		}
+		if (*s) {
+			int m = strlen(s);
+			if (len > m && strncmp(&name[len-m], s, m) == 0)
+				return i;
+		}
+	}
+	return -1;
+}
+
+/* tempname - generate a temporary file name in tempdir with given suffix */
+char *tempname(char *suffix) {
+	static int n;
+	char *name = stringf("%s/lcc%d%d%s", tempdir, getpid(), n++, suffix);
+
+	if (strstr(com[1], "win32") != NULL)
+		name = replace(name, '/', '\\');
+	rmlist = append(name, rmlist);
+	return name;
+}