/* Simple tool to create config.h.
- * Would be much easier with ccan modules, but deliberately standalone. */
+ * Would be much easier with ccan modules, but deliberately standalone.
+ *
+ * Copyright 2011 Rusty Russell <rusty@rustcorp.com.au>. MIT license.
+ *
+ * c12r_err, c12r_errx functions copied from ccan/err/err.c
+ * Copyright Rusty Russell <rusty@rustcorp.com.au>. CC0 (Public domain) License.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#define _POSIX_C_SOURCE 200809L /* For pclose, popen, strdup */
+
+#include <errno.h>
#include <stdio.h>
+#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
-#include <unistd.h>
-#include <err.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <fcntl.h>
#include <string.h>
+#include <unistd.h>
+#ifdef _MSC_VER
+#define popen _popen
+#define pclose _pclose
+#endif
+
+#ifdef _MSC_VER
+#define DEFAULT_COMPILER "cl"
+/* Note: Dash options avoid POSIX path conversion when used under msys bash
+ * and are therefore preferred to slash (e.g. -nologo over /nologo)
+ * Note: Disable Warning 4200 "nonstandard extension used : zero-sized array
+ * in struct/union" for flexible array members.
+ */
+#define DEFAULT_FLAGS "-nologo -Zi -W4 -wd4200 " \
+ "-D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS"
+#define DEFAULT_OUTPUT_EXE_FLAG "-Fe:"
+#else
#define DEFAULT_COMPILER "cc"
-#define DEFAULT_FLAGS "-g -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
+#define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
+#define DEFAULT_OUTPUT_EXE_FLAG "-o"
+#endif
#define OUTPUT_FILE "configurator.out"
#define INPUT_FILE "configuratortest.c"
-static int verbose;
+#ifdef _WIN32
+#define DIR_SEP "\\"
+#else
+#define DIR_SEP "/"
+#endif
-enum test_style {
- OUTSIDE_MAIN = 0x1,
- DEFINES_FUNC = 0x2,
- INSIDE_MAIN = 0x4,
- DEFINES_EVERYTHING = 0x8,
- MAY_NOT_COMPILE = 0x10,
- EXECUTE = 0x8000
-};
+static const char *progname = "";
+static int verbose;
+static bool like_a_libtool = false;
struct test {
const char *name;
- enum test_style style;
+ const char *desc;
+ /*
+ * Template style flags (pick one):
+ * OUTSIDE_MAIN:
+ * - put a simple boilerplate main below it.
+ * DEFINES_FUNC:
+ * - defines a static function called func; adds ref to avoid warnings
+ * INSIDE_MAIN:
+ * - put this inside main().
+ * DEFINES_EVERYTHING:
+ * - don't add any boilerplate at all.
+ *
+ * Execution flags:
+ * EXECUTE:
+ * - a runtime test; must compile, exit 0 means flag is set.
+ * MAY_NOT_COMPILE:
+ * - Only useful with EXECUTE: don't get upset if it doesn't compile.
+ * <nothing>:
+ * - a compile test, if it compiles must run and exit 0.
+ */
+ const char *style;
const char *depends;
+ const char *link;
const char *fragment;
+ const char *flags;
+ const char *overrides; /* On success, force this to '1' */
bool done;
bool answer;
};
-static struct test tests[] = {
- { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL,
+/* Terminated by a NULL name */
+static struct test *tests;
+
+static const struct test base_tests[] = {
+ { "HAVE_32BIT_OFF_T", "off_t is 32 bits",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE", NULL, NULL,
"#include <sys/types.h>\n"
- "int main(int argc, char *argv[]) {\n"
+ "int main(void) {\n"
" return sizeof(off_t) == 4 ? 0 : 1;\n"
"}\n" },
- { "HAVE_ALIGNOF", INSIDE_MAIN, NULL,
+ { "HAVE_ALIGNOF", "__alignof__ support",
+ "INSIDE_MAIN", NULL, NULL,
"return __alignof__(double) > 0 ? 0 : 1;" },
- { "HAVE_ASPRINTF", DEFINES_FUNC, NULL,
+ { "HAVE_ASPRINTF", "asprintf() declaration",
+ "DEFINES_FUNC", NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
"#define _GNU_SOURCE\n"
+ "#endif\n"
"#include <stdio.h>\n"
"static char *func(int x) {"
" char *p;\n"
- " if (asprintf(&p, \"%u\", x) == -1) p = NULL;"
+ " if (asprintf(&p, \"%u\", x) == -1) \n"
+ " p = NULL;\n"
" return p;\n"
"}" },
- { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL,
+ { "HAVE_ATTRIBUTE_COLD", "__attribute__((cold)) support",
+ "DEFINES_FUNC", NULL, NULL,
"static int __attribute__((cold)) func(int x) { return x; }" },
- { "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL,
+ { "HAVE_ATTRIBUTE_CONST", "__attribute__((const)) support",
+ "DEFINES_FUNC", NULL, NULL,
"static int __attribute__((const)) func(int x) { return x; }" },
- { "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL,
+ { "HAVE_ATTRIBUTE_PURE", "__attribute__((pure)) support",
+ "DEFINES_FUNC", NULL, NULL,
+ "static int __attribute__((pure)) func(int x) { return x; }" },
+ { "HAVE_ATTRIBUTE_MAY_ALIAS", "__attribute__((may_alias)) support",
+ "OUTSIDE_MAIN", NULL, NULL,
"typedef short __attribute__((__may_alias__)) short_a;" },
- { "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL,
+ { "HAVE_ATTRIBUTE_NORETURN", "__attribute__((noreturn)) support",
+ "DEFINES_FUNC", NULL, NULL,
"#include <stdlib.h>\n"
"static void __attribute__((noreturn)) func(int x) { exit(x); }" },
- { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL,
- "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { }" },
- { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL,
+ { "HAVE_ATTRIBUTE_PRINTF", "__attribute__ format printf support",
+ "DEFINES_FUNC", NULL, NULL,
+ "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { (void)fmt; }" },
+ { "HAVE_ATTRIBUTE_UNUSED", "__attribute__((unused)) support",
+ "OUTSIDE_MAIN", NULL, NULL,
"static int __attribute__((unused)) func(int x) { return x; }" },
- { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL,
+ { "HAVE_ATTRIBUTE_USED", "__attribute__((used)) support",
+ "OUTSIDE_MAIN", NULL, NULL,
"static int __attribute__((used)) func(int x) { return x; }" },
- { "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL,
+ { "HAVE_BACKTRACE", "backtrace() in <execinfo.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#include <execinfo.h>\n"
+ "static int func(int x) {"
+ " void *bt[10];\n"
+ " return backtrace(bt, 10) < x;\n"
+ "}" },
+ { "HAVE_BIG_ENDIAN", "big endian",
+ "INSIDE_MAIN|EXECUTE", NULL, NULL,
"union { int i; char c[sizeof(int)]; } u;\n"
"u.i = 0x01020304;\n"
"return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;" },
- { "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H",
+ { "HAVE_BSWAP_64", "bswap64 in byteswap.h",
+ "DEFINES_FUNC", "HAVE_BYTESWAP_H", NULL,
"#include <byteswap.h>\n"
"static int func(int x) { return bswap_64(x); }" },
- { "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_CHOOSE_EXPR", "__builtin_choose_expr support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_choose_expr(1, 0, \"garbage\");" },
- { "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_CLZ", "__builtin_clz support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_clz(1) == (sizeof(int)*8 - 1) ? 0 : 1;" },
- { "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_CLZL", "__builtin_clzl support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_clzl(1) == (sizeof(long)*8 - 1) ? 0 : 1;" },
- { "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_CLZLL", "__builtin_clzll support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_clzll(1) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
- { "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_CTZ", "__builtin_ctz support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_ctz(1 << (sizeof(int)*8 - 1)) == (sizeof(int)*8 - 1) ? 0 : 1;" },
+ { "HAVE_BUILTIN_CTZL", "__builtin_ctzl support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
+ { "HAVE_BUILTIN_CTZLL", "__builtin_ctzll support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_ctzll(1ULL << (sizeof(long long)*8 - 1)) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
+ { "HAVE_BUILTIN_CONSTANT_P", "__builtin_constant_p support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_constant_p(1) ? 0 : 1;" },
- { "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_EXPECT", "__builtin_expect support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_expect(argc == 1, 1) ? 0 : 1;" },
- { "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_FFS", "__builtin_ffs support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_ffs(0) == 0 ? 0 : 1;" },
+ { "HAVE_BUILTIN_FFSL", "__builtin_ffsl support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_ffsl(0L) == 0 ? 0 : 1;" },
- { "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_FFSLL", "__builtin_ffsll support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_ffsll(0LL) == 0 ? 0 : 1;" },
- { "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_POPCOUNT", "__builtin_popcount support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_popcount(255) == 8 ? 0 : 1;" },
+ { "HAVE_BUILTIN_POPCOUNTL", "__builtin_popcountl support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_popcountl(255L) == 8 ? 0 : 1;" },
- { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL,
+ { "HAVE_BUILTIN_POPCOUNTLL", "__builtin_popcountll support",
+ "INSIDE_MAIN", NULL, NULL,
+ "return __builtin_popcountll(255LL) == 8 ? 0 : 1;" },
+ { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", "__builtin_types_compatible_p support",
+ "INSIDE_MAIN", NULL, NULL,
"return __builtin_types_compatible_p(char *, int) ? 1 : 0;" },
- { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL,
+ { "HAVE_ICCARM_INTRINSICS", "<intrinsics.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#include <intrinsics.h>\n"
+ "int func(int v) {\n"
+ " return __CLZ(__RBIT(v));\n"
+ "}" },
+ { "HAVE_BYTESWAP_H", "<byteswap.h>",
+ "OUTSIDE_MAIN", NULL, NULL,
"#include <byteswap.h>\n" },
- { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL,
+ { "HAVE_CLOCK_GETTIME", "clock_gettime() declaration",
+ "DEFINES_FUNC", "HAVE_STRUCT_TIMESPEC", NULL,
+ "#include <time.h>\n"
+ "static struct timespec func(void) {\n"
+ " struct timespec ts;\n"
+ " clock_gettime(CLOCK_REALTIME, &ts);\n"
+ " return ts;\n"
+ "}\n" },
+ { "HAVE_CLOCK_GETTIME_IN_LIBRT", "clock_gettime() in librt",
+ "DEFINES_FUNC",
+ "HAVE_STRUCT_TIMESPEC !HAVE_CLOCK_GETTIME",
+ "-lrt",
+ "#include <time.h>\n"
+ "static struct timespec func(void) {\n"
+ " struct timespec ts;\n"
+ " clock_gettime(CLOCK_REALTIME, &ts);\n"
+ " return ts;\n"
+ "}\n",
+ /* This means HAVE_CLOCK_GETTIME, too */
+ "HAVE_CLOCK_GETTIME" },
+ { "HAVE_COMPOUND_LITERALS", "compound literal support",
+ "INSIDE_MAIN", NULL, NULL,
"int *foo = (int[]) { 1, 2, 3, 4 };\n"
"return foo[0] ? 0 : 1;" },
- { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE,
- "HAVE_32BIT_OFF_T",
+ { "HAVE_FCHDIR", "fchdir support",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE", NULL, NULL,
+ "#include <sys/types.h>\n"
+ "#include <sys/stat.h>\n"
+ "#include <fcntl.h>\n"
+ "#include <unistd.h>\n"
+ "int main(void) {\n"
+ " int fd = open(\"..\", O_RDONLY);\n"
+ " return fchdir(fd) == 0 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_ERR_H", "<err.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#include <err.h>\n"
+ "static void func(int arg) {\n"
+ " if (arg == 0)\n"
+ " err(1, \"err %u\", arg);\n"
+ " if (arg == 1)\n"
+ " errx(1, \"err %u\", arg);\n"
+ " if (arg == 3)\n"
+ " warn(\"warn %u\", arg);\n"
+ " if (arg == 4)\n"
+ " warnx(\"warn %u\", arg);\n"
+ "}\n" },
+ { "HAVE_FILE_OFFSET_BITS", "_FILE_OFFSET_BITS to get 64-bit offsets",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE",
+ "HAVE_32BIT_OFF_T", NULL,
"#define _FILE_OFFSET_BITS 64\n"
"#include <sys/types.h>\n"
- "int main(int argc, char *argv[]) {\n"
+ "int main(void) {\n"
" return sizeof(off_t) == 8 ? 0 : 1;\n"
"}\n" },
- { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL,
- "for (int i = 0; i < argc; i++) { return 0; };\n"
- "return 1;" },
- { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL,
+ { "HAVE_FOR_LOOP_DECLARATION", "for loop declaration support",
+ "INSIDE_MAIN", NULL, NULL,
+ "int ret = 1;\n"
+ "for (int i = 0; i < argc; i++) { ret = 0; };\n"
+ "return ret;" },
+ { "HAVE_FLEXIBLE_ARRAY_MEMBER", "flexible array member support",
+ "OUTSIDE_MAIN", NULL, NULL,
"struct foo { unsigned int x; int arr[]; };" },
- { "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL,
+ { "HAVE_GETPAGESIZE", "getpagesize() in <unistd.h>",
+ "DEFINES_FUNC", NULL, NULL,
"#include <unistd.h>\n"
"static int func(void) { return getpagesize(); }" },
- { "HAVE_ISBLANK", DEFINES_FUNC, NULL,
+ { "HAVE_ISBLANK", "isblank() in <ctype.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
"#include <ctype.h>\n"
"static int func(void) { return isblank(' '); }" },
- { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL,
+ { "HAVE_LITTLE_ENDIAN", "little endian",
+ "INSIDE_MAIN|EXECUTE", NULL, NULL,
"union { int i; char c[sizeof(int)]; } u;\n"
"u.i = 0x01020304;\n"
"return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;" },
- { "HAVE_MEMMEM", DEFINES_FUNC, NULL,
+ { "HAVE_MEMMEM", "memmem in <string.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
"#define _GNU_SOURCE\n"
+ "#endif\n"
"#include <string.h>\n"
"static void *func(void *h, size_t hl, void *n, size_t nl) {\n"
"return memmem(h, hl, n, nl);"
"}\n", },
- { "HAVE_MMAP", DEFINES_FUNC, NULL,
+ { "HAVE_MEMRCHR", "memrchr in <string.h>",
+ "DEFINES_FUNC", NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <string.h>\n"
+ "static void *func(void *s, int c, size_t n) {\n"
+ "return memrchr(s, c, n);"
+ "}\n", },
+ { "HAVE_MMAP", "mmap() declaration",
+ "DEFINES_FUNC", NULL, NULL,
"#include <sys/mman.h>\n"
"static void *func(int fd) {\n"
" return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n"
"}" },
- { "HAVE_QSORT_R_PRIVATE_LAST",
- DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL,
- "#define _GNU_SOURCE 1\n"
+ { "HAVE_PROC_SELF_MAPS", "/proc/self/maps exists",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE", NULL, NULL,
+ "#include <sys/types.h>\n"
+ "#include <sys/stat.h>\n"
+ "#include <fcntl.h>\n"
+ "int main(void) {\n"
+ " return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_QSORT_R_PRIVATE_LAST", "qsort_r cmp takes trailing arg",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE", NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
"#include <stdlib.h>\n"
"static int cmp(const void *lp, const void *rp, void *priv) {\n"
" *(unsigned int *)priv = 1;\n"
" qsort_r(array, 3, sizeof(int), cmp, &called);\n"
" return called && array[0] == 2 && array[1] == 5 && array[2] == 9 ? 0 : 1;\n"
"}\n" },
- { "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL,
- "static long nest(const void *base, unsigned int i)\n"
+ { "HAVE_STRUCT_TIMESPEC", "struct timespec declaration",
+ "DEFINES_FUNC", NULL, NULL,
+ "#include <time.h>\n"
+ "static void func(void) {\n"
+ " struct timespec ts;\n"
+ " ts.tv_sec = ts.tv_nsec = 1;\n"
+ "}\n" },
+ { "HAVE_SECTION_START_STOP", "__attribute__((section)) and __start/__stop",
+ "DEFINES_FUNC", NULL, NULL,
+ "static void *__attribute__((__section__(\"mysec\"))) p = &p;\n"
+ "static int func(void) {\n"
+ " extern void *__start_mysec[], *__stop_mysec[];\n"
+ " return __stop_mysec - __start_mysec;\n"
+ "}\n" },
+ { "HAVE_STACK_GROWS_UPWARDS", "stack grows upwards",
+ "DEFINES_EVERYTHING|EXECUTE", NULL, NULL,
+ "#include <stddef.h>\n"
+ "static ptrdiff_t nest(const void *base, unsigned int i)\n"
"{\n"
" if (i == 0)\n"
" return (const char *)&i - (const char *)base;\n"
" return nest(base, i-1);\n"
"}\n"
"int main(int argc, char *argv[]) {\n"
- " return (nest(&argc, argc) > 0) ? 0 : 1\n;"
+ " (void)argv;\n"
+ " return (nest(&argc, argc) > 0) ? 0 : 1;\n"
"}\n" },
- { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL,
+ { "HAVE_STATEMENT_EXPR", "statement expression support",
+ "INSIDE_MAIN", NULL, NULL,
"return ({ int x = argc; x == argc ? 0 : 1; });" },
- { "HAVE_TYPEOF", INSIDE_MAIN, NULL,
+ { "HAVE_SYS_FILIO_H", "<sys/filio.h>",
+ "OUTSIDE_MAIN", NULL, NULL, /* Solaris needs this for FIONREAD */
+ "#include <sys/filio.h>\n" },
+ { "HAVE_SYS_TERMIOS_H", "<sys/termios.h>",
+ "OUTSIDE_MAIN", NULL, NULL,
+ "#include <sys/termios.h>\n" },
+ { "HAVE_SYS_UNISTD_H", "<sys/unistd.h>",
+ "OUTSIDE_MAIN", NULL, NULL,
+ "#include <sys/unistd.h>\n" },
+ { "HAVE_TYPEOF", "__typeof__ support",
+ "INSIDE_MAIN", NULL, NULL,
"__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" },
- { "HAVE_UTIME", DEFINES_FUNC, NULL,
+ { "HAVE_UNALIGNED_ACCESS", "unaligned access to int",
+ "DEFINES_EVERYTHING|EXECUTE", NULL, NULL,
+ "#include <string.h>\n"
+ "int main(int argc, char *argv[]) {\n"
+ " (void)argc;\n"
+ " char pad[sizeof(int *) * 1];\n"
+ " strncpy(pad, argv[0], sizeof(pad));\n"
+ " int *x = (int *)pad, *y = (int *)(pad + 1);\n"
+ " return *x == *y;\n"
+ "}\n" },
+ { "HAVE_UTIME", "utime() declaration",
+ "DEFINES_FUNC", NULL, NULL,
"#include <sys/types.h>\n"
"#include <utime.h>\n"
"static int func(const char *filename) {\n"
" struct utimbuf times = { 0 };\n"
" return utime(filename, ×);\n"
"}" },
- { "HAVE_WARN_UNUSED_RESULT", DEFINES_FUNC, NULL,
+ { "HAVE_WARN_UNUSED_RESULT", "__attribute__((warn_unused_result))",
+ "DEFINES_FUNC", NULL, NULL,
"#include <sys/types.h>\n"
"#include <utime.h>\n"
"static __attribute__((warn_unused_result)) int func(int i) {\n"
" return i + 1;\n"
"}" },
+ { "HAVE_OPENMP", "#pragma omp and -fopenmp support",
+ "INSIDE_MAIN", NULL, NULL,
+ "int i;\n"
+ "#pragma omp parallel for\n"
+ "for(i = 0; i < 0; i++) {};\n"
+ "return 0;\n",
+ "-Werror -fopenmp" },
+ { "HAVE_VALGRIND_MEMCHECK_H", "<valgrind/memcheck.h>",
+ "OUTSIDE_MAIN", NULL, NULL,
+ "#include <valgrind/memcheck.h>\n" },
+ { "HAVE_UCONTEXT", "working <ucontext.h",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE",
+ NULL, NULL,
+ "#include <ucontext.h>\n"
+ "static int x = 0;\n"
+ "static char stack[2048];\n"
+ "static ucontext_t a, b;\n"
+ "static void fn(void) {\n"
+ " x |= 2;\n"
+ " setcontext(&b);\n"
+ " x |= 4;\n"
+ "}\n"
+ "int main(void) {\n"
+ " x |= 1;\n"
+ " getcontext(&a);\n"
+ " a.uc_stack.ss_sp = stack;\n"
+ " a.uc_stack.ss_size = sizeof(stack);\n"
+ " makecontext(&a, fn, 0);\n"
+ " swapcontext(&b, &a);\n"
+ " return (x == 3) ? 0 : 1;\n"
+ "}\n"
+ },
+ { "HAVE_POINTER_SAFE_MAKECONTEXT", "passing pointers via makecontext()",
+ "DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE",
+ "HAVE_UCONTEXT", NULL,
+ "#include <stddef.h>\n"
+ "#include <ucontext.h>\n"
+ "static int worked = 0;\n"
+ "static char stack[1024];\n"
+ "static ucontext_t a, b;\n"
+ "static void fn(void *p, void *q) {\n"
+ " void *cp = &worked;\n"
+ " void *cq = (void *)(~((ptrdiff_t)cp));\n"
+ " if ((p == cp) && (q == cq))\n"
+ " worked = 1;\n"
+ " setcontext(&b);\n"
+ "}\n"
+ "int main(void) {\n"
+ " void *ap = &worked;\n"
+ " void *aq = (void *)(~((ptrdiff_t)ap));\n"
+ " getcontext(&a);\n"
+ " a.uc_stack.ss_sp = stack;\n"
+ " a.uc_stack.ss_size = sizeof(stack);\n"
+ " makecontext(&a, (void (*)(void))fn, 2, ap, aq);\n"
+ " swapcontext(&b, &a);\n"
+ " return worked ? 0 : 1;\n"
+ "}\n"
+ },
};
-static char *grab_fd(int fd)
+static void c12r_err(int eval, const char *fmt, ...)
{
- int ret;
- size_t max, size = 0;
+ int err_errno = errno;
+ va_list ap;
+
+ fprintf(stderr, "%s: ", progname);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, ": %s\n", strerror(err_errno));
+ exit(eval);
+}
+
+static void c12r_errx(int eval, const char *fmt, ...)
+{
+ va_list ap;
+
+ fprintf(stderr, "%s: ", progname);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, "\n");
+ exit(eval);
+}
+
+static void start_test(const char *what, const char *why)
+{
+ if (like_a_libtool) {
+ printf("%s%s... ", what, why);
+ fflush(stdout);
+ }
+}
+
+static void end_test(bool result)
+{
+ if (like_a_libtool)
+ printf("%s\n", result ? "yes" : "no");
+}
+
+static size_t fcopy(FILE *fsrc, FILE *fdst)
+{
+ char buffer[BUFSIZ];
+ size_t rsize, wsize;
+ size_t copied = 0;
+
+ while ((rsize = fread(buffer, 1, BUFSIZ, fsrc)) > 0) {
+ wsize = fwrite(buffer, 1, rsize, fdst);
+ copied += wsize;
+ if (wsize != rsize)
+ break;
+ }
+
+ return copied;
+}
+
+static char *grab_stream(FILE *file)
+{
+ size_t max, ret, size = 0;
char *buffer;
- max = 16384;
- buffer = malloc(max+1);
- while ((ret = read(fd, buffer + size, max - size)) > 0) {
+ max = BUFSIZ;
+ buffer = malloc(max);
+ while ((ret = fread(buffer+size, 1, max - size, file)) == max - size) {
size += ret;
- if (size == max)
- buffer = realloc(buffer, max *= 2);
+ buffer = realloc(buffer, max *= 2);
}
- if (ret < 0)
- err(1, "reading from command");
+ size += ret;
+ if (ferror(file))
+ c12r_err(1, "reading from command");
buffer[size] = '\0';
return buffer;
}
static char *run(const char *cmd, int *exitstatus)
{
- pid_t pid;
- int p[2];
+ static const char redir[] = " 2>&1";
+ size_t cmdlen;
+ char *cmdredir;
+ FILE *cmdout;
char *ret;
- int status;
- if (pipe(p) != 0)
- err(1, "creating pipe");
-
- pid = fork();
- if (pid == -1)
- err(1, "forking");
-
- if (pid == 0) {
- if (dup2(p[1], STDOUT_FILENO) != STDOUT_FILENO
- || dup2(p[1], STDERR_FILENO) != STDERR_FILENO
- || close(p[0]) != 0
- || close(STDIN_FILENO) != 0
- || open("/dev/null", O_RDONLY) != STDIN_FILENO)
- exit(128);
-
- status = system(cmd);
- if (WIFEXITED(status))
- exit(WEXITSTATUS(status));
- /* Here's a hint... */
- exit(128 + WTERMSIG(status));
- }
+ cmdlen = strlen(cmd);
+ cmdredir = malloc(cmdlen + sizeof(redir));
+ memcpy(cmdredir, cmd, cmdlen);
+ memcpy(cmdredir + cmdlen, redir, sizeof(redir));
- close(p[1]);
- ret = grab_fd(p[0]);
- /* This shouldn't fail... */
- if (waitpid(pid, &status, 0) != pid)
- err(1, "Failed to wait for child");
- close(p[0]);
- if (WIFEXITED(status))
- *exitstatus = WEXITSTATUS(status);
- else
- *exitstatus = -WTERMSIG(status);
+ cmdout = popen(cmdredir, "r");
+ if (!cmdout)
+ c12r_err(1, "popen \"%s\"", cmdredir);
+
+ free(cmdredir);
+
+ ret = grab_stream(cmdout);
+ *exitstatus = pclose(cmdout);
return ret;
}
-static char *connect_args(const char *argv[], const char *extra)
+static char *connect_args(const char *argv[], const char *outflag,
+ const char *files)
{
- unsigned int i, len = strlen(extra) + 1;
+ unsigned int i;
char *ret;
+ size_t len = strlen(outflag) + strlen(files) + 1;
for (i = 1; argv[i]; i++)
len += 1 + strlen(argv[i]);
for (i = 1; argv[i]; i++) {
strcpy(ret + len, argv[i]);
len += strlen(argv[i]);
- ret[len++] = ' ';
+ if (argv[i+1] || *outflag)
+ ret[len++] = ' ';
}
- strcpy(ret + len, extra);
+ strcpy(ret + len, outflag);
+ len += strlen(outflag);
+ strcpy(ret + len, files);
return ret;
}
{
unsigned int i;
- for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
+ for (i = 0; tests[i].name; i++) {
if (strcmp(tests[i].name, name) == 0)
return &tests[i];
}
+ c12r_errx(2, "Unknown test %s", name);
abort();
}
#define PRE_BOILERPLATE "/* Test program generated by configurator. */\n"
-#define MAIN_START_BOILERPLATE "int main(int argc, char *argv[]) {\n"
+#define MAIN_START_BOILERPLATE \
+ "int main(int argc, char *argv[]) {\n" \
+ " (void)argc;\n" \
+ " (void)argv;\n"
#define USE_FUNC_BOILERPLATE "(void)func;\n"
#define MAIN_BODY_BOILERPLATE "return 0;\n"
#define MAIN_END_BOILERPLATE "}\n"
static bool run_test(const char *cmd, struct test *test)
{
- char *output;
+ char *output, *newcmd;
FILE *outf;
int status;
if (test->done)
return test->answer;
- if (test->depends && !run_test(cmd, find_test(test->depends))) {
- test->answer = false;
- test->done = true;
- return test->answer;
+ if (test->depends) {
+ size_t len;
+ const char *deps = test->depends;
+ char *dep;
+
+ /* Space-separated dependencies, could be ! for inverse. */
+ while ((len = strcspn(deps, " ")) != 0) {
+ bool positive = true;
+ if (deps[len]) {
+ dep = strdup(deps);
+ dep[len] = '\0';
+ } else {
+ dep = (char *)deps;
+ }
+
+ if (dep[0] == '!') {
+ dep++;
+ positive = false;
+ }
+ if (run_test(cmd, find_test(dep)) != positive) {
+ test->answer = false;
+ test->done = true;
+ return test->answer;
+ }
+ if (deps[len])
+ free(dep);
+
+ deps += len;
+ deps += strspn(deps, " ");
+ }
}
- outf = fopen(INPUT_FILE, "w");
+ outf = fopen(INPUT_FILE, verbose > 1 ? "w+" : "w");
if (!outf)
- err(1, "creating %s", INPUT_FILE);
+ c12r_err(1, "creating %s", INPUT_FILE);
fprintf(outf, "%s", PRE_BOILERPLATE);
- switch (test->style & ~(EXECUTE|MAY_NOT_COMPILE)) {
- case INSIDE_MAIN:
+
+ if (strstr(test->style, "INSIDE_MAIN")) {
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
fprintf(outf, "%s", test->fragment);
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
- break;
- case OUTSIDE_MAIN:
+ } else if (strstr(test->style, "OUTSIDE_MAIN")) {
fprintf(outf, "%s", test->fragment);
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
- break;
- case DEFINES_FUNC:
+ } else if (strstr(test->style, "DEFINES_FUNC")) {
fprintf(outf, "%s", test->fragment);
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
fprintf(outf, "%s", USE_FUNC_BOILERPLATE);
fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
- break;
- case DEFINES_EVERYTHING:
+ } else if (strstr(test->style, "DEFINES_EVERYTHING")) {
fprintf(outf, "%s", test->fragment);
- break;
- default:
- abort();
+ } else
+ c12r_errx(2, "Unknown style for test %s: %s",
+ test->name, test->style);
+ if (verbose > 1) {
+ fseek(outf, 0, SEEK_SET);
+ fcopy(outf, stdout);
}
+
fclose(outf);
- if (verbose > 1)
- if (system("cat " INPUT_FILE) == -1);
+ newcmd = strdup(cmd);
+
+ if (test->flags) {
+ newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
+ + strlen(test->flags) + 1);
+ strcat(newcmd, " ");
+ strcat(newcmd, test->flags);
+ if (verbose > 1)
+ printf("Extra flags line: %s", newcmd);
+ }
+
+ if (test->link) {
+ newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
+ + strlen(test->link) + 1);
+ strcat(newcmd, " ");
+ strcat(newcmd, test->link);
+ if (verbose > 1)
+ printf("Extra link line: %s", newcmd);
+ }
+
+ start_test("checking for ", test->desc);
+ output = run(newcmd, &status);
+
+ free(newcmd);
- output = run(cmd, &status);
if (status != 0 || strstr(output, "warning")) {
if (verbose)
printf("Compile %s for %s, status %i: %s\n",
status ? "fail" : "warning",
test->name, status, output);
- if ((test->style & EXECUTE) && !(test->style & MAY_NOT_COMPILE))
- errx(1, "Test for %s did not compile:\n%s",
- test->name, output);
+ if (strstr(test->style, "EXECUTE")
+ && !strstr(test->style, "MAY_NOT_COMPILE"))
+ c12r_errx(1, "Test for %s did not compile:\n%s",
+ test->name, output);
test->answer = false;
free(output);
} else {
/* Compile succeeded. */
free(output);
/* We run INSIDE_MAIN tests for sanity checking. */
- if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
- output = run("./" OUTPUT_FILE, &status);
- if (!(test->style & EXECUTE) && status != 0)
- errx(1, "Test for %s failed with %i:\n%s",
- test->name, status, output);
+ if (strstr(test->style, "EXECUTE")
+ || strstr(test->style, "INSIDE_MAIN")) {
+ output = run("." DIR_SEP OUTPUT_FILE, &status);
+ if (!strstr(test->style, "EXECUTE") && status != 0)
+ c12r_errx(1, "Test for %s failed with %i:\n%s",
+ test->name, status, output);
if (verbose && status)
printf("%s exited %i\n", test->name, status);
free(output);
test->answer = (status == 0);
}
test->done = true;
+ end_test(test->answer);
+
+ if (test->answer && test->overrides) {
+ struct test *override = find_test(test->overrides);
+ override->done = true;
+ override->answer = true;
+ }
return test->answer;
}
+static char *any_field(char **fieldname)
+{
+ char buf[1000];
+ for (;;) {
+ char *p, *eq;
+
+ if (!fgets(buf, sizeof(buf), stdin))
+ return NULL;
+
+ p = buf;
+ /* Ignore whitespace, lines starting with # */
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p == '#' || *p == '\n')
+ continue;
+
+ eq = strchr(p, '=');
+ if (!eq)
+ c12r_errx(2, "no = in line: %s", p);
+ *eq = '\0';
+ *fieldname = strdup(p);
+ p = eq + 1;
+ if (strlen(p) && p[strlen(p)-1] == '\n')
+ p[strlen(p)-1] = '\0';
+ return strdup(p);
+ }
+}
+
+static char *read_field(const char *name, bool compulsory)
+{
+ char *fieldname, *value;
+
+ value = any_field(&fieldname);
+ if (!value) {
+ if (!compulsory)
+ return NULL;
+ c12r_errx(2, "Could not read field %s", name);
+ }
+ if (strcmp(fieldname, name) != 0)
+ c12r_errx(2, "Expected field %s not %s", name, fieldname);
+ return value;
+}
+
+/* Test descriptions from stdin:
+ * Lines starting with # or whitespace-only are ignored.
+ *
+ * First three non-ignored lines must be:
+ * var=<varname>
+ * desc=<description-for-autotools-style>
+ * style=OUTSIDE_MAIN DEFINES_FUNC INSIDE_MAIN DEFINES_EVERYTHING EXECUTE MAY_NOT_COMPILE
+ *
+ * Followed by optional lines:
+ * depends=<space-separated-testnames, ! to invert>
+ * link=<extra args for link line>
+ * flags=<extra args for compile line>
+ * overrides=<testname-to-force>
+ *
+ * Finally a code line, either:
+ * code=<oneline> OR
+ * code=
+ * <lines of code>
+ * <end-comment>
+ *
+ * And <end-comment> looks like this next comment: */
+/*END*/
+static bool read_test(struct test *test)
+{
+ char *field, *value;
+ char buf[1000];
+
+ memset(test, 0, sizeof(*test));
+ test->name = read_field("var", false);
+ if (!test->name)
+ return false;
+ test->desc = read_field("desc", true);
+ test->style = read_field("style", true);
+ /* Read any optional fields. */
+ while ((value = any_field(&field)) != NULL) {
+ if (strcmp(field, "depends") == 0)
+ test->depends = value;
+ else if (strcmp(field, "link") == 0)
+ test->link = value;
+ else if (strcmp(field, "flags") == 0)
+ test->flags = value;
+ else if (strcmp(field, "overrides") == 0)
+ test->overrides = value;
+ else if (strcmp(field, "code") == 0)
+ break;
+ else
+ c12r_errx(2, "Unknown field %s in %s",
+ field, test->name);
+ }
+ if (!value)
+ c12r_errx(2, "Missing code in %s", test->name);
+
+ if (strlen(value) == 0) {
+ /* Multiline program, read to END comment */
+ while (fgets(buf, sizeof(buf), stdin) != 0) {
+ size_t n;
+ if (strncmp(buf, "/*END*/", 7) == 0)
+ break;
+ n = strlen(value);
+ value = realloc(value, n + strlen(buf) + 1);
+ strcpy(value + n, buf);
+ n += strlen(buf);
+ }
+ }
+ test->fragment = value;
+ return true;
+}
+
+static void read_tests(size_t num_tests)
+{
+ while (read_test(tests + num_tests)) {
+ num_tests++;
+ tests = realloc(tests, num_tests * sizeof(tests[0]));
+ }
+}
+
int main(int argc, const char *argv[])
{
char *cmd;
unsigned int i;
const char *default_args[]
= { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
+ const char *outflag = DEFAULT_OUTPUT_EXE_FLAG;
+ const char *configurator_cc = NULL;
+ const char *orig_cc;
+ const char *varfile = NULL;
+ const char *headerfile = NULL;
+ bool extra_tests = false;
+ FILE *outf;
- if (argc > 1) {
+ if (argc > 0)
+ progname = argv[0];
+
+ while (argc > 1) {
if (strcmp(argv[1], "--help") == 0) {
- printf("Usage: configurator [-v] [<compiler> <flags>...]\n"
- " <compiler> <flags> will have \"-o <outfile> <infile.c>\" appended\n"
- "Default: %s %s\n",
- DEFAULT_COMPILER, DEFAULT_FLAGS);
+ printf("Usage: configurator [-v] [--var-file=<filename>] [-O<outflag>] [--configurator-cc=<compiler-for-tests>] [--autotools-style] [--extra-tests] [<compiler> <flags>...]\n"
+ " <compiler> <flags> will have \"<outflag> <outfile> <infile.c>\" appended\n"
+ "Default: %s %s %s\n",
+ DEFAULT_COMPILER, DEFAULT_FLAGS,
+ DEFAULT_OUTPUT_EXE_FLAG);
exit(0);
}
- if (strcmp(argv[1], "-v") == 0) {
+ if (strncmp(argv[1], "-O", 2) == 0) {
argc--;
argv++;
- verbose = 1;
+ outflag = argv[1] + 2;
+ if (!*outflag) {
+ fprintf(stderr,
+ "%s: option requires an argument -- O\n",
+ argv[0]);
+ exit(1);
+ }
+ } else if (strcmp(argv[1], "-v") == 0) {
+ argc--;
+ argv++;
+ verbose++;
} else if (strcmp(argv[1], "-vv") == 0) {
argc--;
argv++;
- verbose = 2;
+ verbose += 2;
+ } else if (strncmp(argv[1], "--configurator-cc=", 18) == 0) {
+ configurator_cc = argv[1] + 18;
+ argc--;
+ argv++;
+ } else if (strncmp(argv[1], "--var-file=", 11) == 0) {
+ varfile = argv[1] + 11;
+ argc--;
+ argv++;
+ } else if (strcmp(argv[1], "--autotools-style") == 0) {
+ like_a_libtool = true;
+ argc--;
+ argv++;
+ } else if (strncmp(argv[1], "--header-file=", 14) == 0) {
+ headerfile = argv[1] + 14;
+ argc--;
+ argv++;
+ } else if (strcmp(argv[1], "--extra-tests") == 0) {
+ extra_tests = true;
+ argc--;
+ argv++;
+ } else if (strcmp(argv[1], "--") == 0) {
+ break;
+ } else if (argv[1][0] == '-') {
+ c12r_errx(2, "Unknown option %s", argv[1]);
+ } else {
+ break;
}
}
if (argc == 1)
argv = default_args;
- cmd = connect_args(argv, "-o " OUTPUT_FILE " " INPUT_FILE);
- for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
+ /* Copy with NULL entry at end */
+ tests = calloc(sizeof(base_tests)/sizeof(base_tests[0]) + 1,
+ sizeof(base_tests[0]));
+ memcpy(tests, base_tests, sizeof(base_tests));
+
+ if (extra_tests)
+ read_tests(sizeof(base_tests)/sizeof(base_tests[0]));
+
+ orig_cc = argv[1];
+ if (configurator_cc)
+ argv[1] = configurator_cc;
+
+ cmd = connect_args(argv, outflag, OUTPUT_FILE " " INPUT_FILE);
+ if (like_a_libtool) {
+ start_test("Making autoconf users comfortable", "");
+ sleep(1);
+ end_test(1);
+ }
+ for (i = 0; tests[i].name; i++)
run_test(cmd, &tests[i]);
+ free(cmd);
+
+ remove(OUTPUT_FILE);
+ remove(INPUT_FILE);
- unlink(OUTPUT_FILE);
- unlink(INPUT_FILE);
+ if (varfile) {
+ FILE *vars;
- cmd[strlen(cmd) - strlen(" -o " OUTPUT_FILE " " INPUT_FILE)] = '\0';
- printf("/* Generated by CCAN configurator */\n"
+ if (strcmp(varfile, "-") == 0)
+ vars = stdout;
+ else {
+ start_test("Writing variables to ", varfile);
+ vars = fopen(varfile, "a");
+ if (!vars)
+ c12r_err(2, "Could not open %s", varfile);
+ }
+ for (i = 0; tests[i].name; i++)
+ fprintf(vars, "%s=%u\n", tests[i].name, tests[i].answer);
+ if (vars != stdout) {
+ if (fclose(vars) != 0)
+ c12r_err(2, "Closing %s", varfile);
+ end_test(1);
+ }
+ }
+
+ if (headerfile) {
+ start_test("Writing header to ", headerfile);
+ outf = fopen(headerfile, "w");
+ if (!outf)
+ c12r_err(2, "Could not open %s", headerfile);
+ } else
+ outf = stdout;
+
+ fprintf(outf, "/* Generated by CCAN configurator */\n"
"#ifndef CCAN_CONFIG_H\n"
"#define CCAN_CONFIG_H\n");
- printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
- printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
- printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd + strlen(argv[1]) + 1);
- for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
- printf("#define %s %u\n", tests[i].name, tests[i].answer);
- printf("#endif /* CCAN_CONFIG_H */\n");
+ fprintf(outf, "#ifndef _GNU_SOURCE\n");
+ fprintf(outf, "#define _GNU_SOURCE /* Always use GNU extensions. */\n");
+ fprintf(outf, "#endif\n");
+ fprintf(outf, "#define CCAN_COMPILER \"%s\"\n", orig_cc);
+ cmd = connect_args(argv + 1, "", "");
+ fprintf(outf, "#define CCAN_CFLAGS \"%s\"\n", cmd);
+ free(cmd);
+ fprintf(outf, "#define CCAN_OUTPUT_EXE_CFLAG \"%s\"\n\n", outflag);
+ /* This one implies "#include <ccan/..." works, eg. for tdb2.h */
+ fprintf(outf, "#define HAVE_CCAN 1\n");
+ for (i = 0; tests[i].name; i++)
+ fprintf(outf, "#define %s %u\n", tests[i].name, tests[i].answer);
+ fprintf(outf, "#endif /* CCAN_CONFIG_H */\n");
+
+ if (headerfile) {
+ if (fclose(outf) != 0)
+ c12r_err(2, "Closing %s", headerfile);
+ end_test(1);
+ }
+
return 0;
}
projects / ccan / blobdiff