2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * This is the Posix.2 mandated C compiler. Basically, a hook to the
7 * Copyright (c) 2001 by Jens Schweikhardt
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
42 #define CC "/usr/bin/cc" /* The big kahuna doing the actual work. */
43 #define N_ARGS_PREPENDED (sizeof(args_prepended) / sizeof(args_prepended[0]))
46 * We do not add -D_POSIX_SOURCE here because any POSIX source is supposed to
47 * define it before inclusion of POSIX headers. This has the additional
48 * benefit of making c89 -D_ANSI_SOURCE do the right thing (or any other
49 * -D_FOO_SOURCE feature test macro we support.)
51 static const char *args_prepended[] = {
52 "-std=iso9899:199409",
56 static void usage(void);
59 * Prepend the strings from args_prepended[] to the arg list; parse options,
60 * accepting only the POSIX c89 mandated options. Then exec cc to do the
64 main(int argc, char **argv)
74 Argv.a = malloc((argc + 1 + N_ARGS_PREPENDED) * sizeof *Argv.a);
78 for (j = 0; j < N_ARGS_PREPENDED; ++j)
79 Argv.a[Argc++] = args_prepended[j];
80 while ((i = getopt(argc, argv, "cD:EgI:l:L:o:OsU:")) != -1) {
84 if (argv[optind - 1][0] == '-') /* -llib */
88 break; /* -llib or -l lib starts the operands. */
92 warnx("missing operand");
96 /* Append argv[1..] at the end of Argv[].a. */
97 for (i = 1; i <= argc; ++i)
98 Argv.a[Argc++] = argv[i];
99 (void)execv(CC, Argv.b);
100 err(1, "execv(" CC ")");
107 "usage: c89 [-cEgOs] [-D name[=value]] ... [-I directory] ... [-L directory] ...\n"
108 " [-o outfile] [-U name] ... operand ...\n"
110 " where operand is one or more of file.c, file.o, file.a\n"