2017-01-17 17:00:00 +00:00
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# Copyright (C) Igor Sysoev
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# Copyright (C) NGINX, Inc.
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# C language features.
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nxt_feature="C99 variadic macro"
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nxt_feature_name=NXT_HAVE_C99_VARIADIC_MACRO
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nxt_feature_run=yes
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-01-17 17:00:00 +00:00
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nxt_feature_libs=
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nxt_feature_test="#include <stdio.h>
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#define set(dummy, ...) sprintf(__VA_ARGS__)
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int main() {
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char buf[4];
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buf[0] = '0';
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set(0, buf, \"%d\", 1);
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if (buf[0] == '1')
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return 0;
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return 1;
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}"
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. auto/feature
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if [ $nxt_found = no ]; then
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nxt_feature="GCC variadic macro"
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nxt_feature_name=NXT_HAVE_GCC_VARIADIC_MACRO
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nxt_feature_run=yes
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-01-17 17:00:00 +00:00
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nxt_feature_libs=
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nxt_feature_test="#include <stdio.h>
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#define set(dummy, args...) sprintf(args)
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int main() {
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char buf[4];
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buf[0] = '0';
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set(0, buf, \"%d\", 1);
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if (buf[0] == '1')
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return 0;
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return 1;
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}"
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. auto/feature
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fi
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nxt_feature="GCC __builtin_expect()"
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nxt_feature_name=NXT_HAVE_BUILTIN_EXPECT
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nxt_feature_run=no
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nxt_feature_incs=
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nxt_feature_libs=
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nxt_feature_test="int main(int argc, char *const *argv) {
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if ((__typeof__(argc == 0))
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__builtin_expect((argc == 0), 0))
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return 0;
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return 1;
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}"
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. auto/feature
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nxt_feature="GCC __builtin_unreachable()"
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nxt_feature_name=NXT_HAVE_BUILTIN_UNREACHABLE
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nxt_feature_run=no
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nxt_feature_incs=
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nxt_feature_libs=
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nxt_feature_test="int main() {
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__builtin_unreachable();
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}"
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. auto/feature
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nxt_feature="GCC __builtin_prefetch()"
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nxt_feature_name=NXT_HAVE_BUILTIN_PREFETCH
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nxt_feature_run=no
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nxt_feature_incs=
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nxt_feature_libs=
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nxt_feature_test="int main() {
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__builtin_prefetch(0);
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2018-04-11 15:29:48 +00:00
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return 0;
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2017-01-17 17:00:00 +00:00
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}"
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. auto/feature
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2017-06-26 16:58:43 +00:00
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nxt_feature="GCC __builtin_clz()"
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nxt_feature_name=NXT_HAVE_BUILTIN_CLZ
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nxt_feature_run=
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nxt_feature_incs=
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nxt_feature_libs=
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nxt_feature_test="int main() {
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if (__builtin_clz(1) == 31)
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return 0;
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return 1;
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}"
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. auto/feature
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2018-06-20 16:34:06 +00:00
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nxt_feature="GCC __builtin_popcount()"
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nxt_feature_name=NXT_HAVE_BUILTIN_POPCOUNT
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nxt_feature_run=
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nxt_feature_incs=
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nxt_feature_libs=
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nxt_feature_test="int main() {
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if (__builtin_popcount(5) == 2)
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return 0;
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return 1;
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}"
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. auto/feature
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2017-01-17 17:00:00 +00:00
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nxt_feature="GCC __attribute__ visibility"
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nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_VISIBILITY
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nxt_feature_run=
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-01-17 17:00:00 +00:00
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nxt_feature_libs=
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nxt_feature_test="int n __attribute__ ((visibility(\"default\")));
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int main() {
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return 1;
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}"
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. auto/feature
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nxt_feature="GCC __attribute__ aligned"
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nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_ALIGNED
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nxt_feature_run=
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-01-17 17:00:00 +00:00
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nxt_feature_libs=
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nxt_feature_test="int n __attribute__ ((aligned(64)));
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int main() {
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return 1;
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}"
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. auto/feature
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nxt_feature="GCC __attribute__ malloc"
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nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_MALLOC
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nxt_feature_run=
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-01-17 17:00:00 +00:00
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nxt_feature_libs=
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nxt_feature_test="#include <stdlib.h>
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void *f(void) __attribute__ ((__malloc__));
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void *f(void) {
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return malloc(1);
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}
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int main() {
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if (f() != NULL) {
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return 1;
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}
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return 0;
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}"
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. auto/feature
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2017-07-18 14:13:40 +00:00
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nxt_feature="GCC __attribute__ packed"
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nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_PACKED
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nxt_feature_run=
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2018-04-11 15:29:48 +00:00
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nxt_feature_incs=
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2017-07-18 14:13:40 +00:00
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nxt_feature_libs=
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2017-08-02 10:01:54 +00:00
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nxt_feature_test="struct s {
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2017-07-18 14:13:40 +00:00
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char c;
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2017-08-02 10:01:54 +00:00
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int i;
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} __attribute__ ((__packed__));
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2017-07-18 14:13:40 +00:00
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int main() {
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return 1;
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}"
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. auto/feature
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