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
41 #define DEFAULT_COMPILER "cc"
42 #define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
44 #define OUTPUT_FILE "configurator.out"
45 #define INPUT_FILE "configuratortest.c"
53 static const char *progname = "";
60 DEFINES_EVERYTHING = 0x8,
61 MAY_NOT_COMPILE = 0x10,
67 enum test_style style;
72 const char *overrides; /* On success, force this to '1' */
77 static struct test tests[] = {
78 { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
79 "#include <sys/types.h>\n"
81 " return sizeof(off_t) == 4 ? 0 : 1;\n"
83 { "HAVE_ALIGNOF", INSIDE_MAIN, NULL, NULL,
84 "return __alignof__(double) > 0 ? 0 : 1;" },
85 { "HAVE_ASPRINTF", DEFINES_FUNC, NULL, NULL,
86 "#ifndef _GNU_SOURCE\n"
87 "#define _GNU_SOURCE\n"
89 "#include <stdio.h>\n"
90 "static char *func(int x) {"
92 " if (asprintf(&p, \"%u\", x) == -1) p = NULL;"
95 { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL, NULL,
96 "static int __attribute__((cold)) func(int x) { return x; }" },
97 { "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL, NULL,
98 "static int __attribute__((const)) func(int x) { return x; }" },
99 { "HAVE_ATTRIBUTE_PURE", DEFINES_FUNC, NULL, NULL,
100 "static int __attribute__((pure)) func(int x) { return x; }" },
101 { "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL, NULL,
102 "typedef short __attribute__((__may_alias__)) short_a;" },
103 { "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL, NULL,
104 "#include <stdlib.h>\n"
105 "static void __attribute__((noreturn)) func(int x) { exit(x); }" },
106 { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL,
107 "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { (void)fmt; }" },
108 { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL, NULL,
109 "static int __attribute__((unused)) func(int x) { return x; }" },
110 { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL, NULL,
111 "static int __attribute__((used)) func(int x) { return x; }" },
112 { "HAVE_BACKTRACE", DEFINES_FUNC, NULL, NULL,
113 "#include <execinfo.h>\n"
114 "static int func(int x) {"
116 " return backtrace(bt, 10) < x;\n"
118 { "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
119 "union { int i; char c[sizeof(int)]; } u;\n"
120 "u.i = 0x01020304;\n"
121 "return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;" },
122 { "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H", NULL,
123 "#include <byteswap.h>\n"
124 "static int func(int x) { return bswap_64(x); }" },
125 { "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL, NULL,
126 "return __builtin_choose_expr(1, 0, \"garbage\");" },
127 { "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL, NULL,
128 "return __builtin_clz(1) == (sizeof(int)*8 - 1) ? 0 : 1;" },
129 { "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL, NULL,
130 "return __builtin_clzl(1) == (sizeof(long)*8 - 1) ? 0 : 1;" },
131 { "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL, NULL,
132 "return __builtin_clzll(1) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
133 { "HAVE_BUILTIN_CTZ", INSIDE_MAIN, NULL, NULL,
134 "return __builtin_ctz(1 << (sizeof(int)*8 - 1)) == (sizeof(int)*8 - 1) ? 0 : 1;" },
135 { "HAVE_BUILTIN_CTZL", INSIDE_MAIN, NULL, NULL,
136 "return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
137 { "HAVE_BUILTIN_CTZLL", INSIDE_MAIN, NULL, NULL,
138 "return __builtin_ctzll(1ULL << (sizeof(long long)*8 - 1)) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
139 { "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL, NULL,
140 "return __builtin_constant_p(1) ? 0 : 1;" },
141 { "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL, NULL,
142 "return __builtin_expect(argc == 1, 1) ? 0 : 1;" },
143 { "HAVE_BUILTIN_FFS", INSIDE_MAIN, NULL, NULL,
144 "return __builtin_ffs(0) == 0 ? 0 : 1;" },
145 { "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL, NULL,
146 "return __builtin_ffsl(0L) == 0 ? 0 : 1;" },
147 { "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL, NULL,
148 "return __builtin_ffsll(0LL) == 0 ? 0 : 1;" },
149 { "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL, NULL,
150 "return __builtin_popcountl(255L) == 8 ? 0 : 1;" },
151 { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL, NULL,
152 "return __builtin_types_compatible_p(char *, int) ? 1 : 0;" },
153 { "HAVE_ICCARM_INTRINSICS", DEFINES_FUNC, NULL, NULL,
154 "#include <intrinsics.h>\n"
155 "int func(int v) {\n"
156 " return __CLZ(__RBIT(v));\n"
158 { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, NULL,
159 "#include <byteswap.h>\n" },
160 { "HAVE_CLOCK_GETTIME",
161 DEFINES_FUNC, "HAVE_STRUCT_TIMESPEC", NULL,
162 "#include <time.h>\n"
163 "static struct timespec func(void) {\n"
164 " struct timespec ts;\n"
165 " clock_gettime(CLOCK_REALTIME, &ts);\n"
168 { "HAVE_CLOCK_GETTIME_IN_LIBRT",
170 "HAVE_STRUCT_TIMESPEC !HAVE_CLOCK_GETTIME",
172 "#include <time.h>\n"
173 "static struct timespec func(void) {\n"
174 " struct timespec ts;\n"
175 " clock_gettime(CLOCK_REALTIME, &ts);\n"
178 /* This means HAVE_CLOCK_GETTIME, too */
179 "HAVE_CLOCK_GETTIME" },
180 { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL,
181 "int *foo = (int[]) { 1, 2, 3, 4 };\n"
182 "return foo[0] ? 0 : 1;" },
183 { "HAVE_FCHDIR", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
184 "#include <sys/types.h>\n"
185 "#include <sys/stat.h>\n"
186 "#include <fcntl.h>\n"
187 "#include <unistd.h>\n"
189 " int fd = open(\"..\", O_RDONLY);\n"
190 " return fchdir(fd) == 0 ? 0 : 1;\n"
192 { "HAVE_ERR_H", DEFINES_FUNC, NULL, NULL,
194 "static void func(int arg) {\n"
196 " err(1, \"err %u\", arg);\n"
198 " errx(1, \"err %u\", arg);\n"
200 " warn(\"warn %u\", arg);\n"
202 " warnx(\"warn %u\", arg);\n"
204 { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
205 "HAVE_32BIT_OFF_T", NULL,
206 "#define _FILE_OFFSET_BITS 64\n"
207 "#include <sys/types.h>\n"
209 " return sizeof(off_t) == 8 ? 0 : 1;\n"
211 { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
213 "for (int i = 0; i < argc; i++) { ret = 0; };\n"
215 { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL, NULL,
216 "struct foo { unsigned int x; int arr[]; };" },
217 { "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL, NULL,
218 "#include <unistd.h>\n"
219 "static int func(void) { return getpagesize(); }" },
220 { "HAVE_ISBLANK", DEFINES_FUNC, NULL, NULL,
221 "#ifndef _GNU_SOURCE\n"
222 "#define _GNU_SOURCE\n"
224 "#include <ctype.h>\n"
225 "static int func(void) { return isblank(' '); }" },
226 { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
227 "union { int i; char c[sizeof(int)]; } u;\n"
228 "u.i = 0x01020304;\n"
229 "return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;" },
230 { "HAVE_MEMMEM", DEFINES_FUNC, NULL, NULL,
231 "#ifndef _GNU_SOURCE\n"
232 "#define _GNU_SOURCE\n"
234 "#include <string.h>\n"
235 "static void *func(void *h, size_t hl, void *n, size_t nl) {\n"
236 "return memmem(h, hl, n, nl);"
238 { "HAVE_MEMRCHR", DEFINES_FUNC, NULL, NULL,
239 "#ifndef _GNU_SOURCE\n"
240 "#define _GNU_SOURCE\n"
242 "#include <string.h>\n"
243 "static void *func(void *s, int c, size_t n) {\n"
244 "return memrchr(s, c, n);"
246 { "HAVE_MMAP", DEFINES_FUNC, NULL, NULL,
247 "#include <sys/mman.h>\n"
248 "static void *func(int fd) {\n"
249 " return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n"
251 { "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
252 "#include <sys/types.h>\n"
253 "#include <sys/stat.h>\n"
254 "#include <fcntl.h>\n"
256 " return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n"
258 { "HAVE_QSORT_R_PRIVATE_LAST",
259 DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
260 "#ifndef _GNU_SOURCE\n"
261 "#define _GNU_SOURCE\n"
263 "#include <stdlib.h>\n"
264 "static int cmp(const void *lp, const void *rp, void *priv) {\n"
265 " *(unsigned int *)priv = 1;\n"
266 " return *(const int *)lp - *(const int *)rp; }\n"
268 " int array[] = { 9, 2, 5 };\n"
269 " unsigned int called = 0;\n"
270 " qsort_r(array, 3, sizeof(int), cmp, &called);\n"
271 " return called && array[0] == 2 && array[1] == 5 && array[2] == 9 ? 0 : 1;\n"
273 { "HAVE_STRUCT_TIMESPEC",
274 DEFINES_FUNC, NULL, NULL,
275 "#include <time.h>\n"
276 "static void func(void) {\n"
277 " struct timespec ts;\n"
278 " ts.tv_sec = ts.tv_nsec = 1;\n"
280 { "HAVE_SECTION_START_STOP",
281 DEFINES_FUNC, NULL, NULL,
282 "static void *__attribute__((__section__(\"mysec\"))) p = &p;\n"
283 "static int func(void) {\n"
284 " extern void *__start_mysec[], *__stop_mysec[];\n"
285 " return __stop_mysec - __start_mysec;\n"
287 { "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
288 "#include <stddef.h>\n"
289 "static ptrdiff_t nest(const void *base, unsigned int i)\n"
292 " return (const char *)&i - (const char *)base;\n"
293 " return nest(base, i-1);\n"
295 "int main(int argc, char *argv[]) {\n"
297 " return (nest(&argc, argc) > 0) ? 0 : 1;\n"
299 { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL, NULL,
300 "return ({ int x = argc; x == argc ? 0 : 1; });" },
301 { "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, NULL, /* Solaris needs this for FIONREAD */
302 "#include <sys/filio.h>\n" },
303 { "HAVE_SYS_TERMIOS_H", OUTSIDE_MAIN, NULL, NULL,
304 "#include <sys/termios.h>\n" },
305 { "HAVE_TYPEOF", INSIDE_MAIN, NULL, NULL,
306 "__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" },
307 { "HAVE_UNALIGNED_ACCESS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
308 "#include <string.h>\n"
309 "int main(int argc, char *argv[]) {\n"
311 " char pad[sizeof(int *) * 1];\n"
312 " strncpy(pad, argv[0], sizeof(pad));\n"
313 " int *x = (int *)pad, *y = (int *)(pad + 1);\n"
314 " return *x == *y;\n"
316 { "HAVE_UTIME", DEFINES_FUNC, NULL, NULL,
317 "#include <sys/types.h>\n"
318 "#include <utime.h>\n"
319 "static int func(const char *filename) {\n"
320 " struct utimbuf times = { 0 };\n"
321 " return utime(filename, ×);\n"
323 { "HAVE_WARN_UNUSED_RESULT", DEFINES_FUNC, NULL, NULL,
324 "#include <sys/types.h>\n"
325 "#include <utime.h>\n"
326 "static __attribute__((warn_unused_result)) int func(int i) {\n"
329 { "HAVE_OPENMP", INSIDE_MAIN, NULL, NULL,
331 "#pragma omp parallel for\n"
332 "for(i = 0; i < 0; i++) {};\n"
334 "-Werror -fopenmp" },
335 { "HAVE_VALGRIND_MEMCHECK_H", OUTSIDE_MAIN, NULL, NULL,
336 "#include <valgrind/memcheck.h>\n" },
337 { "HAVE_UCONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
339 "#include <ucontext.h>\n"
340 "static int x = 0;\n"
341 "static char stack[2048];\n"
342 "static ucontext_t a, b;\n"
343 "static void fn(void) {\n"
351 " a.uc_stack.ss_sp = stack;\n"
352 " a.uc_stack.ss_size = sizeof(stack);\n"
353 " makecontext(&a, fn, 0);\n"
354 " swapcontext(&b, &a);\n"
355 " return (x == 3) ? 0 : 1;\n"
358 { "HAVE_POINTER_SAFE_MAKECONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
359 "HAVE_UCONTEXT", NULL,
360 "#include <stddef.h>\n"
361 "#include <ucontext.h>\n"
362 "static int worked = 0;\n"
363 "static char stack[1024];\n"
364 "static ucontext_t a, b;\n"
365 "static void fn(void *p, void *q) {\n"
366 " void *cp = &worked;\n"
367 " void *cq = (void *)(~((ptrdiff_t)cp));\n"
368 " if ((p == cp) && (q == cq))\n"
373 " void *ap = &worked;\n"
374 " void *aq = (void *)(~((ptrdiff_t)ap));\n"
376 " a.uc_stack.ss_sp = stack;\n"
377 " a.uc_stack.ss_size = sizeof(stack);\n"
378 " makecontext(&a, (void (*)(void))fn, 2, ap, aq);\n"
379 " swapcontext(&b, &a);\n"
380 " return worked ? 0 : 1;\n"
385 static void c12r_err(int eval, const char *fmt, ...)
387 int err_errno = errno;
390 fprintf(stderr, "%s: ", progname);
392 vfprintf(stderr, fmt, ap);
394 fprintf(stderr, ": %s\n", strerror(err_errno));
398 static void c12r_errx(int eval, const char *fmt, ...)
402 fprintf(stderr, "%s: ", progname);
404 vfprintf(stderr, fmt, ap);
406 fprintf(stderr, "\n");
410 static char *grab_stream(FILE *file)
412 size_t max, ret, size = 0;
416 buffer = malloc(max);
417 while ((ret = fread(buffer+size, 1, max - size, file)) == max - size) {
419 buffer = realloc(buffer, max *= 2);
423 c12r_err(1, "reading from command");
428 static char *run(const char *cmd, int *exitstatus)
430 static const char redir[] = " 2>&1";
436 cmdlen = strlen(cmd);
437 cmdredir = malloc(cmdlen + sizeof(redir));
438 memcpy(cmdredir, cmd, cmdlen);
439 memcpy(cmdredir + cmdlen, redir, sizeof(redir));
441 cmdout = popen(cmdredir, "r");
443 c12r_err(1, "popen \"%s\"", cmdredir);
447 ret = grab_stream(cmdout);
448 *exitstatus = pclose(cmdout);
452 static char *connect_args(const char *argv[], const char *extra)
454 unsigned int i, len = strlen(extra) + 1;
457 for (i = 1; argv[i]; i++)
458 len += 1 + strlen(argv[i]);
462 for (i = 1; argv[i]; i++) {
463 strcpy(ret + len, argv[i]);
464 len += strlen(argv[i]);
468 strcpy(ret + len, extra);
472 static struct test *find_test(const char *name)
476 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
477 if (strcmp(tests[i].name, name) == 0)
483 #define PRE_BOILERPLATE "/* Test program generated by configurator. */\n"
484 #define MAIN_START_BOILERPLATE \
485 "int main(int argc, char *argv[]) {\n" \
488 #define USE_FUNC_BOILERPLATE "(void)func;\n"
489 #define MAIN_BODY_BOILERPLATE "return 0;\n"
490 #define MAIN_END_BOILERPLATE "}\n"
492 static bool run_test(const char *cmd, struct test *test)
494 char *output, *newcmd;
503 const char *deps = test->depends;
506 /* Space-separated dependencies, could be ! for inverse. */
507 while ((len = strcspn(deps, " ")) != 0) {
508 bool positive = true;
520 if (run_test(cmd, find_test(dep)) != positive) {
521 test->answer = false;
529 deps += strspn(deps, " ");
533 outf = fopen(INPUT_FILE, "w");
535 c12r_err(1, "creating %s", INPUT_FILE);
537 fprintf(outf, "%s", PRE_BOILERPLATE);
538 switch (test->style & ~(EXECUTE|MAY_NOT_COMPILE)) {
540 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
541 fprintf(outf, "%s", test->fragment);
542 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
545 fprintf(outf, "%s", test->fragment);
546 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
547 fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
548 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
551 fprintf(outf, "%s", test->fragment);
552 fprintf(outf, "%s", MAIN_START_BOILERPLATE);
553 fprintf(outf, "%s", USE_FUNC_BOILERPLATE);
554 fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
555 fprintf(outf, "%s", MAIN_END_BOILERPLATE);
557 case DEFINES_EVERYTHING:
558 fprintf(outf, "%s", test->fragment);
567 if (system("cat " INPUT_FILE) == -1)
570 newcmd = strdup(cmd);
573 newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
574 + strlen(test->flags) + 1);
576 strcat(newcmd, test->flags);
578 printf("Extra flags line: %s", newcmd);
582 newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
583 + strlen(test->link) + 1);
585 strcat(newcmd, test->link);
587 printf("Extra link line: %s", newcmd);
590 output = run(newcmd, &status);
594 if (status != 0 || strstr(output, "warning")) {
596 printf("Compile %s for %s, status %i: %s\n",
597 status ? "fail" : "warning",
598 test->name, status, output);
599 if ((test->style & EXECUTE) && !(test->style & MAY_NOT_COMPILE))
600 c12r_errx(1, "Test for %s did not compile:\n%s",
602 test->answer = false;
605 /* Compile succeeded. */
607 /* We run INSIDE_MAIN tests for sanity checking. */
608 if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
609 output = run("." DIR_SEP OUTPUT_FILE, &status);
610 if (!(test->style & EXECUTE) && status != 0)
611 c12r_errx(1, "Test for %s failed with %i:\n%s",
612 test->name, status, output);
613 if (verbose && status)
614 printf("%s exited %i\n", test->name, status);
617 test->answer = (status == 0);
621 if (test->answer && test->overrides) {
622 struct test *override = find_test(test->overrides);
623 override->done = true;
624 override->answer = true;
629 int main(int argc, const char *argv[])
633 const char *default_args[]
634 = { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
640 if (strcmp(argv[1], "--help") == 0) {
641 printf("Usage: configurator [-v] [<compiler> <flags>...]\n"
642 " <compiler> <flags> will have \"-o <outfile> <infile.c>\" appended\n"
644 DEFAULT_COMPILER, DEFAULT_FLAGS);
647 if (strcmp(argv[1], "-v") == 0) {
651 } else if (strcmp(argv[1], "-vv") == 0) {
661 cmd = connect_args(argv, " -o " OUTPUT_FILE " " INPUT_FILE);
662 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
663 run_test(cmd, &tests[i]);
669 printf("/* Generated by CCAN configurator */\n"
670 "#ifndef CCAN_CONFIG_H\n"
671 "#define CCAN_CONFIG_H\n");
672 printf("#ifndef _GNU_SOURCE\n");
673 printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
675 printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
676 cmd = connect_args(argv+1, "");
677 printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd);
679 /* This one implies "#include <ccan/..." works, eg. for tdb2.h */
680 printf("#define HAVE_CCAN 1\n");
681 for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
682 printf("#define %s %u\n", tests[i].name, tests[i].answer);
683 printf("#endif /* CCAN_CONFIG_H */\n");