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# Copyright (C) Igor Sysoev
# Copyright (C) NGINX, Inc.
# C language features.
nxt_feature="C99 variadic macro"
nxt_feature_name=NXT_HAVE_C99_VARIADIC_MACRO
nxt_feature_run=yes
nxt_feature_path=
nxt_feature_libs=
nxt_feature_test="#include <stdio.h>
#define set(dummy, ...) sprintf(__VA_ARGS__)
int main() {
char buf[4];
buf[0] = '0';
set(0, buf, \"%d\", 1);
if (buf[0] == '1')
return 0;
return 1;
}"
. auto/feature
if [ $nxt_found = no ]; then
nxt_feature="GCC variadic macro"
nxt_feature_name=NXT_HAVE_GCC_VARIADIC_MACRO
nxt_feature_run=yes
nxt_feature_path=
nxt_feature_libs=
nxt_feature_test="#include <stdio.h>
#define set(dummy, args...) sprintf(args)
int main() {
char buf[4];
buf[0] = '0';
set(0, buf, \"%d\", 1);
if (buf[0] == '1')
return 0;
return 1;
}"
. auto/feature
fi
nxt_feature="GCC __builtin_expect()"
nxt_feature_name=NXT_HAVE_BUILTIN_EXPECT
nxt_feature_run=no
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="int main(int argc, char *const *argv) {
if ((__typeof__(argc == 0))
__builtin_expect((argc == 0), 0))
return 0;
return 1;
}"
. auto/feature
nxt_feature="GCC __builtin_unreachable()"
nxt_feature_name=NXT_HAVE_BUILTIN_UNREACHABLE
nxt_feature_run=no
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="int main() {
__builtin_unreachable();
}"
. auto/feature
nxt_feature="GCC __builtin_prefetch()"
nxt_feature_name=NXT_HAVE_BUILTIN_PREFETCH
nxt_feature_run=no
nxt_feature_incs=
nxt_feature_libs=
nxt_feature_test="int main() {
__builtin_prefetch(0);
}"
. auto/feature
nxt_feature="GCC __attribute__ visibility"
nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_VISIBILITY
nxt_feature_run=
nxt_feature_path=
nxt_feature_libs=
nxt_feature_test="int n __attribute__ ((visibility(\"default\")));
int main() {
return 1;
}"
. auto/feature
nxt_feature="GCC __attribute__ aligned"
nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_ALIGNED
nxt_feature_run=
nxt_feature_path=
nxt_feature_libs=
nxt_feature_test="int n __attribute__ ((aligned(64)));
int main() {
return 1;
}"
. auto/feature
nxt_feature="GCC __attribute__ malloc"
nxt_feature_name=NXT_HAVE_GCC_ATTRIBUTE_MALLOC
nxt_feature_run=
nxt_feature_path=
nxt_feature_libs=
nxt_feature_test="#include <stdlib.h>
void *f(void) __attribute__ ((__malloc__));
void *f(void) {
return malloc(1);
}
int main() {
if (f() != NULL) {
return 1;
}
return 0;
}"
. auto/feature
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