1 /* Simple tool to create config.h.
2 * Would be much easier with ccan modules, but deliberately standalone.
4 * Copyright 2011 Rusty Russell <rusty@rustcorp.com.au>. MIT license.
6 * c12r_err, c12r_errx functions copied from ccan/err/err.c
7 * Copyright Rusty Russell <rusty@rustcorp.com.au>. CC0 (Public domain) License.
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #define _POSIX_C_SOURCE 200809L /* For pclose, popen, strdup */
38 #define pclose _pclose
42 #define DEFAULT_COMPILER "cl"
43 /* Note: Dash options avoid POSIX path conversion when used under msys bash
44 * and are therefore preferred to slash (e.g. -nologo over /nologo)
45 * Note: Disable Warning 4200 "nonstandard extension used : zero-sized array
46 * in struct/union" for flexible array members.
48 #define DEFAULT_FLAGS "-nologo -Zi -W4 -wd4200 " \
49 "-D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS"
50 #define DEFAULT_OUTPUT_EXE_FLAG "-Fe:"
52 #define DEFAULT_COMPILER "cc"
53 #define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
54 #define DEFAULT_OUTPUT_EXE_FLAG "-o"
57 #define OUTPUT_FILE "configurator.out"
58 #define INPUT_FILE "configuratortest.c"
66 static const char *progname = "";
73 DEFINES_EVERYTHING = 0x8,
74 MAY_NOT_COMPILE = 0x10,
80 enum test_style style;
85 const char *overrides; /* On success, force this to '1' */
90 static struct test tests[] = {
91 { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
92 "#include <sys/types.h>\n"
94 " return sizeof(off_t) == 4 ? 0 : 1;\n"
96 { "HAVE_ALIGNOF", INSIDE_MAIN, NULL, NULL,
97 "return __alignof__(double) > 0 ? 0 : 1;" },
98 { "HAVE_ASPRINTF", DEFINES_FUNC, NULL, NULL,
99 "#ifndef _GNU_SOURCE\n"
100 "#define _GNU_SOURCE\n"
102 "#include <stdio.h>\n"
103 "static char *func(int x) {"
105 " if (asprintf(&p, \"%u\", x) == -1) p = NULL;"
108 { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL, NULL,
109 "static int __attribute__((cold)) func(int x) { return x; }" },
110 { "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL, NULL,
111 "static int __attribute__((const)) func(int x) { return x; }" },
112 { "HAVE_ATTRIBUTE_PURE", DEFINES_FUNC, NULL, NULL,
113 "static int __attribute__((pure)) func(int x) { return x; }" },
114 { "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL, NULL,
115 "typedef short __attribute__((__may_alias__)) short_a;" },
116 { "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL, NULL,
117 "#include <stdlib.h>\n"
118 "static void __attribute__((noreturn)) func(int x) { exit(x); }" },
119 { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL,
120 "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { (void)fmt; }" },
121 { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL, NULL,
122 "static int __attribute__((unused)) func(int x) { return x; }" },
123 { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL, NULL,
124 "static int __attribute__((used)) func(int x) { return x; }" },
125 { "HAVE_BACKTRACE", DEFINES_FUNC, NULL, NULL,
126 "#include <execinfo.h>\n"
127 "static int func(int x) {"
129 " return backtrace(bt, 10) < x;\n"
131 { "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
132 "union { int i; char c[sizeof(int)]; } u;\n"
133 "u.i = 0x01020304;\n"
134 "return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;" },
135 { "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H", NULL,
136 "#include <byteswap.h>\n"
137 "static int func(int x) { return bswap_64(x); }" },
138 { "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL, NULL,
139 "return __builtin_choose_expr(1, 0, \"garbage\");" },
140 { "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL, NULL,
141 "return __builtin_clz(1) == (sizeof(int)*8 - 1) ? 0 : 1;" },
142 { "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL, NULL,
143 "return __builtin_clzl(1) == (sizeof(long)*8 - 1) ? 0 : 1;" },
144 { "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL, NULL,
145 "return __builtin_clzll(1) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
146 { "HAVE_BUILTIN_CTZ", INSIDE_MAIN, NULL, NULL,
147 "return __builtin_ctz(1 << (sizeof(int)*8 - 1)) == (sizeof(int)*8 - 1) ? 0 : 1;" },
148 { "HAVE_BUILTIN_CTZL", INSIDE_MAIN, NULL, NULL,
149 "return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
150 { "HAVE_BUILTIN_CTZLL", INSIDE_MAIN, NULL, NULL,
151 "return __builtin_ctzll(1ULL << (sizeof(long long)*8 - 1)) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
152 { "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL, NULL,
153 "return __builtin_constant_p(1) ? 0 : 1;" },
154 { "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL, NULL,
155 "return __builtin_expect(argc == 1, 1) ? 0 : 1;" },
156 { "HAVE_BUILTIN_FFS", INSIDE_MAIN, NULL, NULL,
157 "return __builtin_ffs(0) == 0 ? 0 : 1;" },
158 { "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL, NULL,
159 "return __builtin_ffsl(0L) == 0 ? 0 : 1;" },
160 { "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL, NULL,
161 "return __builtin_ffsll(0LL) == 0 ? 0 : 1;" },
162 { "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL, NULL,
163 "return __builtin_popcountl(255L) == 8 ? 0 : 1;" },
164 { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL, NULL,
165 "return __builtin_types_compatible_p(char *, int) ? 1 : 0;" },
166 { "HAVE_ICCARM_INTRINSICS", DEFINES_FUNC, NULL, NULL,
167 "#include <intrinsics.h>\n"
168 "int func(int v) {\n"
169 " return __CLZ(__RBIT(v));\n"
171 { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, NULL,
172 "#include <byteswap.h>\n" },
173 { "HAVE_CLOCK_GETTIME",
174 DEFINES_FUNC, "HAVE_STRUCT_TIMESPEC", NULL,
175 "#include <time.h>\n"
176 "static struct timespec func(void) {\n"
177 " struct timespec ts;\n"
178 " clock_gettime(CLOCK_REALTIME, &ts);\n"
181 { "HAVE_CLOCK_GETTIME_IN_LIBRT",
183 "HAVE_STRUCT_TIMESPEC !HAVE_CLOCK_GETTIME",
185 "#include <time.h>\n"
186 "static struct timespec func(void) {\n"
187 " struct timespec ts;\n"
188 " clock_gettime(CLOCK_REALTIME, &ts);\n"
191 /* This means HAVE_CLOCK_GETTIME, too */
192 "HAVE_CLOCK_GETTIME" },
193 { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL,
194 "int *foo = (int[]) { 1, 2, 3, 4 };\n"
195 "return foo[0] ? 0 : 1;" },
196 { "HAVE_FCHDIR", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
197 "#include <sys/types.h>\n"
198 "#include <sys/stat.h>\n"
199 "#include <fcntl.h>\n"
200 "#include <unistd.h>\n"
202 " int fd = open(\"..\", O_RDONLY);\n"
203 " return fchdir(fd) == 0 ? 0 : 1;\n"
205 { "HAVE_ERR_H", DEFINES_FUNC, NULL, NULL,
207 "static void func(int arg) {\n"
209 " err(1, \"err %u\", arg);\n"
211 " errx(1, \"err %u\", arg);\n"
213 " warn(\"warn %u\", arg);\n"
215 " warnx(\"warn %u\", arg);\n"
217 { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
218 "HAVE_32BIT_OFF_T", NULL,
219 "#define _FILE_OFFSET_BITS 64\n"
220 "#include <sys/types.h>\n"
222 " return sizeof(off_t) == 8 ? 0 : 1;\n"
224 { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
226 "for (int i = 0; i < argc; i++) { ret = 0; };\n"
228 { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL, NULL,
229 "struct foo { unsigned int x; int arr[]; };" },
230 { "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL, NULL,
231 "#include <unistd.h>\n"
232 "static int func(void) { return getpagesize(); }" },
233 { "HAVE_ISBLANK", DEFINES_FUNC, NULL, NULL,
234 "#ifndef _GNU_SOURCE\n"
235 "#define _GNU_SOURCE\n"
237 "#include <ctype.h>\n"
238 "static int func(void) { return isblank(' '); }" },
239 { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
240 "union { int i; char c[sizeof(int)]; } u;\n"
241 "u.i = 0x01020304;\n"
242 "return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;" },
243 { "HAVE_MEMMEM", DEFINES_FUNC, NULL, NULL,
244 "#ifndef _GNU_SOURCE\n"
245 "#define _GNU_SOURCE\n"
247 "#include <string.h>\n"
248 "static void *func(void *h, size_t hl, void *n, size_t nl) {\n"
249 "return memmem(h, hl, n, nl);"
251 { "HAVE_MEMRCHR", DEFINES_FUNC, NULL, NULL,
252 "#ifndef _GNU_SOURCE\n"
253 "#define _GNU_SOURCE\n"
255 "#include <string.h>\n"
256 "static void *func(void *s, int c, size_t n) {\n"
257 "return memrchr(s, c, n);"
259 { "HAVE_MMAP", DEFINES_FUNC, NULL, NULL,
260 "#include <sys/mman.h>\n"
261 "static void *func(int fd) {\n"
262 " return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n"
264 { "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
265 "#include <sys/types.h>\n"
266 "#include <sys/stat.h>\n"
267 "#include <fcntl.h>\n"
269 " return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n"
271 { "HAVE_QSORT_R_PRIVATE_LAST",
272 DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
273 "#ifndef _GNU_SOURCE\n"
274 "#define _GNU_SOURCE\n"
276 "#include <stdlib.h>\n"
277 "static int cmp(const void *lp, const void *rp, void *priv) {\n"
278 " *(unsigned int *)priv = 1;\n"
279 " return *(const int *)lp - *(const int *)rp; }\n"
281 " int array[] = { 9, 2, 5 };\n"
282 " unsigned int called = 0;\n"
283 " qsort_r(array, 3, sizeof(int), cmp, &called);\n"
284 " return called && array[0] == 2 && array[1] == 5 && array[2] == 9 ? 0 : 1;\n"
286 { "HAVE_STRUCT_TIMESPEC",
287 DEFINES_FUNC, NULL, NULL,
288 "#include <time.h>\n"
289 "static void func(void) {\n"
290 " struct timespec ts;\n"
291 " ts.tv_sec = ts.tv_nsec = 1;\n"
293 { "HAVE_SECTION_START_STOP",
294 DEFINES_FUNC, NULL, NULL,
295 "static void *__attribute__((__section__(\"mysec\"))) p = &p;\n"
296 "static int func(void) {\n"
297 " extern void *__start_mysec[], *__stop_mysec[];\n"
298 " return __stop_mysec - __start_mysec;\n"
300 { "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
301 "#include <stddef.h>\n"
302 "static ptrdiff_t nest(const void *base, unsigned int i)\n"
305 " return (const char *)&i - (const char *)base;\n"
306 " return nest(base, i-1);\n"
308 "int main(int argc, char *argv[]) {\n"
310 " return (nest(&argc, argc) > 0) ? 0 : 1;\n"
312 { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL, NULL,
313 "return ({ int x = argc; x == argc ? 0 : 1; });" },
314 { "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, NULL, /* Solaris needs this for FIONREAD */
315 "#include <sys/filio.h>\n" },
316 { "HAVE_SYS_TERMIOS_H", OUTSIDE_MAIN, NULL, NULL,
317 "#include <sys/termios.h>\n" },
318 { "HAVE_TYPEOF", INSIDE_MAIN, NULL, NULL,
319 "__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" },
320 { "HAVE_UNALIGNED_ACCESS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
321 "#include <string.h>\n"
322 "int main(int argc, char *argv[]) {\n"
324 " char pad[sizeof(int *) * 1];\n"
325 " strncpy(pad, argv[0], sizeof(pad));\n"
326 " int *x = (int *)pad, *y = (int *)(pad + 1);\n"
327 " return *x == *y;\n"
329 { "HAVE_UTIME", DEFINES_FUNC, NULL, NULL,
330 "#include <sys/types.h>\n"
331 "#include <utime.h>\n"
332 "static int func(const char *filename) {\n"
333 " struct utimbuf times = { 0 };\n"
334 " return utime(filename, ×);\n"
336 { "HAVE_WARN_UNUSED_RESULT", DEFINES_FUNC, NULL, NULL,
337 "#include <sys/types.h>\n"
338 "#include <utime.h>\n"
339 "static __attribute__((warn_unused_result)) int func(int i) {\n"
342 { "HAVE_OPENMP", INSIDE_MAIN, NULL, NULL,
344 "#pragma omp parallel for\n"
345 "for(i = 0; i < 0; i++) {};\n"
347 "-Werror -fopenmp" },
348 { "HAVE_VALGRIND_MEMCHECK_H", OUTSIDE_MAIN, NULL, NULL,
349 "#include <valgrind/memcheck.h>\n" },
350 { "HAVE_UCONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
352 "#include <ucontext.h>\n"
353 "static int x = 0;\n"
354 "static char stack[2048];\n"
355 "static ucontext_t a, b;\n"
356 "static void fn(void) {\n"
364 " a.uc_stack.ss_sp = stack;\n"
365 " a.uc_stack.ss_size = sizeof(stack);\n"
366 " makecontext(&a, fn, 0);\n"
367 " swapcontext(&b, &a);\n"
368 " return (x == 3) ? 0 : 1;\n"
371 { "HAVE_POINTER_SAFE_MAKECONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
372 "HAVE_UCONTEXT", NULL,
373 "#include <stddef.h>\n"
374 "#include <ucontext.h>\n"
375 "static int worked = 0;\n"
376 "static char stack[1024];\n"
377 "static ucontext_t a, b;\n"
378 "static void fn(void *p, void *q) {\n"
379 " void *cp = &worked;\n"
380 " void *cq = (void *)(~((ptrdiff_t)cp));\n"
381 " if ((p == cp) && (q == cq))\n"
386 " void *ap = &worked;\n"
387 " void *aq = (void *)(~((ptrdiff_t)ap));\n"
389 " a.uc_stack.ss_sp = stack;\n"
390 " a.uc_stack.ss_size = sizeof(stack);\n"
391 " makecontext(&a, (void (*)(void))fn, 2, ap, aq);\n"
392 " swapcontext(&b, &a);\n"
393 " return worked ? 0 : 1;\n"
398 static void c12r_err(int eval, const char *fmt, ...)
400 int err_errno = errno;
403 fprintf(stderr, "%s: ", progname);
405 vfprintf(stderr, fmt, ap);
407 fprintf(stderr, ": %s\n", strerror(err_errno));
411 static void c12r_errx(int eval, const char *fmt, ...)
415 fprintf(stderr, "%s: ", progname);
417 vfprintf(stderr, fmt, ap);
419 fprintf(stderr, "\n");
423 static size_t fcopy(FILE *fsrc, FILE *fdst)
429 while ((rsize = fread(buffer, 1, BUFSIZ, fsrc)) > 0) {
430 wsize = fwrite(buffer, 1, rsize, fdst);
439 static char *grab_stream(FILE *file)
441 size_t max, ret, size = 0;
445 buffer = malloc(max);
446 while ((ret = fread(buffer+size, 1, max - size, file)) == max - size) {
448 buffer = realloc(buffer, max *= 2);
452 c12r_err(1, "reading from command");
457 static char *run(const char *cmd, int *exitstatus)
459 static const char redir[] = " 2>&1";
465 cmdlen = strlen(cmd);
466 cmdredir = malloc(cmdlen + sizeof(redir));
467 memcpy(cmdredir, cmd, cmdlen);
468 memcpy(cmdredir + cmdlen, redir, sizeof(redir));
470 cmdout = popen(cmdredir, "r");
472 c12r_err(1, "popen \"%s\"", cmdredir);
476 ret = grab_stream(cmdout);
477 *exitstatus = pclose(cmdout);
481 static char *connect_args(const char *argv[], const char *outflag,
486 size_t len = strlen(outflag) + strlen(files) + 1;
488 for (i = 1; argv[i]; i++)
489 len += 1 + strlen(argv[i]);
493 for (i = 1; argv[i]; i++) {
494 strcpy(ret + len, argv[i]);
495 len += strlen(argv[i]);
496 if (argv[i+1] || *outflag)
499 strcpy(ret + len, outflag);
500 len += strlen(outflag);
501 strcpy(ret + len, files);
505 static struct test *find_test(const char *name)
509 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
510 if (strcmp(tests[i].name, name) == 0)
516 #define PRE_BOILERPLATE "/* Test program generated by configurator. */\n"
517 #define MAIN_START_BOILERPLATE \
518 "int main(int argc, char *argv[]) {\n" \
521 #define USE_FUNC_BOILERPLATE "(void)func;\n"
522 #define MAIN_BODY_BOILERPLATE "return 0;\n"
523 #define MAIN_END_BOILERPLATE "}\n"
525 static bool run_test(const char *cmd, struct test *test)
527 char *output, *newcmd;
536 const char *deps = test->depends;
539 /* Space-separated dependencies, could be ! for inverse. */
540 while ((len = strcspn(deps, " ")) != 0) {
541 bool positive = true;
553 if (run_test(cmd, find_test(dep)) != positive) {
554 test->answer = false;
562 deps += strspn(deps, " ");
566 outf = fopen(INPUT_FILE, verbose > 1 ? "w+" : "w");
568 c12r_err(1, "creating %s", INPUT_FILE);
570 fprintf(outf, "%s", PRE_BOILERPLATE);
571 switch (test->style & ~(EXECUTE|MAY_NOT_COMPILE)) {
573 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
574 fprintf(outf, "%s", test->fragment);
575 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
578 fprintf(outf, "%s", test->fragment);
579 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
580 fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
581 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
584 fprintf(outf, "%s", test->fragment);
585 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
586 fprintf(outf, "%s", USE_FUNC_BOILERPLATE);
587 fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
588 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
590 case DEFINES_EVERYTHING:
591 fprintf(outf, "%s", test->fragment);
599 fseek(outf, 0, SEEK_SET);
605 newcmd = strdup(cmd);
608 newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
609 + strlen(test->flags) + 1);
611 strcat(newcmd, test->flags);
613 printf("Extra flags line: %s", newcmd);
617 newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
618 + strlen(test->link) + 1);
620 strcat(newcmd, test->link);
622 printf("Extra link line: %s", newcmd);
625 output = run(newcmd, &status);
629 if (status != 0 || strstr(output, "warning")) {
631 printf("Compile %s for %s, status %i: %s\n",
632 status ? "fail" : "warning",
633 test->name, status, output);
634 if ((test->style & EXECUTE) && !(test->style & MAY_NOT_COMPILE))
635 c12r_errx(1, "Test for %s did not compile:\n%s",
637 test->answer = false;
640 /* Compile succeeded. */
642 /* We run INSIDE_MAIN tests for sanity checking. */
643 if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
644 output = run("." DIR_SEP OUTPUT_FILE, &status);
645 if (!(test->style & EXECUTE) && status != 0)
646 c12r_errx(1, "Test for %s failed with %i:\n%s",
647 test->name, status, output);
648 if (verbose && status)
649 printf("%s exited %i\n", test->name, status);
652 test->answer = (status == 0);
656 if (test->answer && test->overrides) {
657 struct test *override = find_test(test->overrides);
658 override->done = true;
659 override->answer = true;
664 int main(int argc, const char *argv[])
668 const char *default_args[]
669 = { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
670 const char *outflag = DEFAULT_OUTPUT_EXE_FLAG;
676 if (strcmp(argv[1], "--help") == 0) {
677 printf("Usage: configurator [-v] [-O<outflag>] [<compiler> <flags>...]\n"
678 " <compiler> <flags> will have \"<outflag> <outfile> <infile.c>\" appended\n"
679 "Default: %s %s %s\n",
680 DEFAULT_COMPILER, DEFAULT_FLAGS,
681 DEFAULT_OUTPUT_EXE_FLAG);
684 if (strncmp(argv[1], "-O", 2) == 0) {
687 outflag = argv[1] + 2;
690 "%s: option requires an argument -- O\n",
694 } else if (strcmp(argv[1], "-v") == 0) {
698 } else if (strcmp(argv[1], "-vv") == 0) {
710 cmd = connect_args(argv, outflag, OUTPUT_FILE " " INPUT_FILE);
711 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
712 run_test(cmd, &tests[i]);
718 printf("/* Generated by CCAN configurator */\n"
719 "#ifndef CCAN_CONFIG_H\n"
720 "#define CCAN_CONFIG_H\n");
721 printf("#ifndef _GNU_SOURCE\n");
722 printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
724 printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
725 cmd = connect_args(argv + 1, "", "");
726 printf("#define CCAN_CFLAGS \"%s\"\n", cmd);
728 printf("#define CCAN_OUTPUT_EXE_CFLAG \"%s\"\n\n", outflag);
729 /* This one implies "#include <ccan/..." works, eg. for tdb2.h */
730 printf("#define HAVE_CCAN 1\n");
731 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
732 printf("#define %s %u\n", tests[i].name, tests[i].answer);
733 printf("#endif /* CCAN_CONFIG_H */\n");