/* 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.
+ *
+ * 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.
+ */
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
};
static struct test tests[] = {
+ { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL,
+ "#include <sys/types.h>\n"
+ "int main(int argc, char *argv[]) {\n"
+ " return sizeof(off_t) == 4 ? 0 : 1;\n"
+ "}\n" },
{ "HAVE_ALIGNOF", INSIDE_MAIN, NULL,
"return __alignof__(double) > 0 ? 0 : 1;" },
{ "HAVE_ASPRINTF", DEFINES_FUNC, NULL,
{ "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, 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",
+ "#define _FILE_OFFSET_BITS 64\n"
+ "#include <sys/types.h>\n"
+ "int main(int argc, char *argv[]) {\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;" },
"#include <unistd.h>\n"
"static int func(void) { return getpagesize(); }" },
{ "HAVE_ISBLANK", DEFINES_FUNC, NULL,
+ "#define _GNU_SOURCE\n"
"#include <ctype.h>\n"
"static int func(void) { return isblank(' '); }" },
{ "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL,
" 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_NESTED_FUNCTIONS", DEFINES_FUNC, NULL,
- "void (*func(int val))(int);\n"
- "void (*func(int val))(int) {\n"
- " auto void add(int val2);\n"
- " void add(int val2) { val += val2; }\n"
- " return add;\n"
- "}\n" },
{ "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL,
"static long nest(const void *base, unsigned int i)\n"
"{\n"
printf("/* Generated by CCAN configurator */\n"
"#ifndef CCAN_CONFIG_H\n"
"#define CCAN_CONFIG_H\n");
+ printf("#ifndef _GNU_SOURCE\n");
printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
+ printf("#endif\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++)