# Copyright (C) Igor Sysoev

# Copyright (C) Nginx, Inc.

NGX_USER=${NGX_USER:-nobody}

if [ -z "$NGX_GROUP" ]; then

if [ $NGX_USER = nobody ]; then

if grep nobody /etc/group 2>&1 >/dev/null; then

echo "checking for nobody group ... found"

NGX_GROUP=nobody

else

echo "checking for nobody group ... not found"

if grep nogroup /etc/group 2>&1 >/dev/null; then

echo "checking for nogroup group ... found"

NGX_GROUP=nogroup

else

echo "checking for nogroup group ... not found"

NGX_GROUP=nobody

fi

fi

else

NGX_GROUP=$NGX_USER

fi

fi

ngx_feature="poll()"

ngx_feature_name=

ngx_feature_run=no

ngx_feature_incs="#include <poll.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int n; struct pollfd pl;

pl.fd = 0;

pl.events = 0;

pl.revents = 0;

n = poll(&pl, 1, 0);

if (n == -1) return 1"

. auto/feature

if [ $ngx_found = no ]; then

EVENT_POLL=NONE

fi

ngx_feature="/dev/poll"

ngx_feature_name="NGX_HAVE_DEVPOLL"

ngx_feature_run=no

ngx_feature_incs="#include <sys/devpoll.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int n, dp; struct dvpoll dvp;

dp = 0;

dvp.dp_fds = NULL;

dvp.dp_nfds = 0;

dvp.dp_timeout = 0;

n = ioctl(dp, DP_POLL, &dvp);

if (n == -1) return 1"

. auto/feature

if [ $ngx_found = yes ]; then

CORE_SRCS="$CORE_SRCS $DEVPOLL_SRCS"

EVENT_MODULES="$EVENT_MODULES $DEVPOLL_MODULE"

EVENT_FOUND=YES

fi

if test -z "$NGX_KQUEUE_CHECKED"; then

ngx_feature="kqueue"

ngx_feature_name="NGX_HAVE_KQUEUE"

ngx_feature_run=no

ngx_feature_incs="#include <sys/event.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="(void) kqueue()"

. auto/feature

if [ $ngx_found = yes ]; then

have=NGX_HAVE_CLEAR_EVENT . auto/have

EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE"

CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS"

EVENT_FOUND=YES

ngx_feature="kqueue's NOTE_LOWAT"

ngx_feature_name="NGX_HAVE_LOWAT_EVENT"

ngx_feature_run=no

ngx_feature_incs="#include <sys/event.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct kevent kev;

kev.fflags = NOTE_LOWAT;

(void) kev"

. auto/feature

ngx_feature="kqueue's EVFILT_TIMER"

ngx_feature_name="NGX_HAVE_TIMER_EVENT"

ngx_feature_run=yes

ngx_feature_incs="#include <sys/event.h>

#include <sys/time.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int kq;

struct kevent kev;

struct timespec ts;

if ((kq = kqueue()) == -1) return 1;

kev.ident = 0;

kev.filter = EVFILT_TIMER;

kev.flags = EV_ADD|EV_ENABLE;

kev.fflags = 0;

kev.data = 1000;

kev.udata = 0;

ts.tv_sec = 0;

ts.tv_nsec = 0;

if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1;

if (kev.flags & EV_ERROR) return 1;"

. auto/feature

fi

fi

if [ "$NGX_SYSTEM" = "NetBSD" ]; then

# NetBSD 2.0 incompatibly defines kevent.udata as "intptr_t"

cat << END >> $NGX_AUTO_CONFIG_H

#define NGX_KQUEUE_UDATA_T

END

else

cat << END >> $NGX_AUTO_CONFIG_H

#define NGX_KQUEUE_UDATA_T (void *)

END

fi

ngx_feature="crypt()"

ngx_feature_name=

ngx_feature_run=no

ngx_feature_incs=

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="crypt(\"test\", \"salt\");"

. auto/feature

if [ $ngx_found = no ]; then

ngx_feature="crypt() in libcrypt"

ngx_feature_name=

ngx_feature_run=no

ngx_feature_incs=

ngx_feature_path=

ngx_feature_libs=-lcrypt

. auto/feature

if [ $ngx_found = yes ]; then

CRYPT_LIB="-lcrypt"

fi

fi

ngx_feature="F_READAHEAD"

ngx_feature_name="NGX_HAVE_F_READAHEAD"

ngx_feature_run=no

ngx_feature_incs="#include <fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="fcntl(0, F_READAHEAD, 1);"

. auto/feature

ngx_feature="posix_fadvise()"

ngx_feature_name="NGX_HAVE_POSIX_FADVISE"

ngx_feature_run=no

ngx_feature_incs="#include <fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="posix_fadvise(0, 0, 0, POSIX_FADV_SEQUENTIAL);"

. auto/feature

ngx_feature="O_DIRECT"

ngx_feature_name="NGX_HAVE_O_DIRECT"

ngx_feature_run=no

ngx_feature_incs="#include <fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="fcntl(0, F_SETFL, O_DIRECT);"

. auto/feature

if [ $ngx_found = yes -a "$NGX_SYSTEM" = "Linux" ]; then

have=NGX_HAVE_ALIGNED_DIRECTIO . auto/have

fi

ngx_feature="F_NOCACHE"

ngx_feature_name="NGX_HAVE_F_NOCACHE"

ngx_feature_run=no

ngx_feature_incs="#include <fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="fcntl(0, F_NOCACHE, 1);"

. auto/feature

ngx_feature="directio()"

ngx_feature_name="NGX_HAVE_DIRECTIO"

ngx_feature_run=no

ngx_feature_incs="#include <sys/types.h>

#include <sys/fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="directio(0, DIRECTIO_ON);"

. auto/feature

ngx_feature="statfs()"

ngx_feature_name="NGX_HAVE_STATFS"

ngx_feature_run=no

ngx_feature_incs="$NGX_INCLUDE_SYS_PARAM_H

$NGX_INCLUDE_SYS_MOUNT_H

$NGX_INCLUDE_SYS_VFS_H"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct statfs fs;

statfs(\".\", &fs);"

. auto/feature

ngx_feature="statvfs()"

ngx_feature_name="NGX_HAVE_STATVFS"

ngx_feature_run=no

ngx_feature_incs="#include <sys/types.h>

#include <sys/statvfs.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct statvfs fs;

statvfs(\".\", &fs);"

. auto/feature

ngx_feature="dlopen()"

ngx_feature_name="NGX_HAVE_DLOPEN"

ngx_feature_run=no

ngx_feature_incs="#include <dlfcn.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="dlopen(NULL, RTLD_NOW | RTLD_GLOBAL); dlsym(NULL, \"\")"

. auto/feature

if [ $ngx_found = no ]; then

ngx_feature="dlopen() in libdl"

ngx_feature_libs="-ldl"

. auto/feature

if [ $ngx_found = yes ]; then

CORE_LIBS="$CORE_LIBS -ldl"

NGX_LIBDL="-ldl"

fi

fi

ngx_feature="sched_yield()"

ngx_feature_name="NGX_HAVE_SCHED_YIELD"

ngx_feature_run=no

ngx_feature_incs="#include <sched.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="sched_yield()"

. auto/feature

if [ $ngx_found = no ]; then

ngx_feature="sched_yield() in librt"

ngx_feature_libs="-lrt"

. auto/feature

if [ $ngx_found = yes ]; then

CORE_LIBS="$CORE_LIBS -lrt"

fi

fi

ngx_feature="sched_setaffinity()"

ngx_feature_name="NGX_HAVE_SCHED_SETAFFINITY"

ngx_feature_run=no

ngx_feature_incs="#include <sched.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="cpu_set_t mask;

CPU_ZERO(&mask);

sched_setaffinity(0, sizeof(cpu_set_t), &mask)"

. auto/feature

ngx_feature="SO_SETFIB"

ngx_feature_name="NGX_HAVE_SETFIB"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_SETFIB, NULL, 0)"

. auto/feature

ngx_feature="SO_REUSEPORT"

ngx_feature_name="NGX_HAVE_REUSEPORT"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_REUSEPORT, NULL, 0)"

. auto/feature

ngx_feature="SO_ACCEPTFILTER"

ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0)"

. auto/feature

# OpenBSD bind to any address for transparent proxying

ngx_feature="SO_BINDANY"

ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_BINDANY, NULL, 0)"

. auto/feature

# Linux transparent proxying

ngx_feature="IP_TRANSPARENT"

ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_TRANSPARENT, NULL, 0)"

. auto/feature

# FreeBSD bind to any address for transparent proxying

ngx_feature="IP_BINDANY"

ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BINDANY, NULL, 0)"

. auto/feature

# Linux IP_BIND_ADDRESS_NO_PORT

ngx_feature="IP_BIND_ADDRESS_NO_PORT"

ngx_feature_name="NGX_HAVE_IP_BIND_ADDRESS_NO_PORT"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BIND_ADDRESS_NO_PORT, NULL, 0)"

. auto/feature

# BSD way to get IPv4 datagram destination address

ngx_feature="IP_RECVDSTADDR"

ngx_feature_name="NGX_HAVE_IP_RECVDSTADDR"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_RECVDSTADDR, NULL, 0)"

. auto/feature

# BSD way to set IPv4 datagram source address

ngx_feature="IP_SENDSRCADDR"

ngx_feature_name="NGX_HAVE_IP_SENDSRCADDR"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_SENDSRCADDR, NULL, 0)"

. auto/feature

# Linux way to get IPv4 datagram destination address

ngx_feature="IP_PKTINFO"

ngx_feature_name="NGX_HAVE_IP_PKTINFO"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct in_pktinfo pkt;

pkt.ipi_spec_dst.s_addr = INADDR_ANY;

(void) pkt;

setsockopt(0, IPPROTO_IP, IP_PKTINFO, NULL, 0)"

. auto/feature

# RFC 3542 way to get IPv6 datagram destination address

ngx_feature="IPV6_RECVPKTINFO"

ngx_feature_name="NGX_HAVE_IPV6_RECVPKTINFO"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_IPV6, IPV6_RECVPKTINFO, NULL, 0)"

. auto/feature

ngx_feature="TCP_DEFER_ACCEPT"

ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>

#include <netinet/tcp.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_DEFER_ACCEPT, NULL, 0)"

. auto/feature

ngx_feature="TCP_KEEPIDLE"

ngx_feature_name="NGX_HAVE_KEEPALIVE_TUNABLE"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>

#include <netinet/tcp.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_KEEPIDLE, NULL, 0);

setsockopt(0, IPPROTO_TCP, TCP_KEEPINTVL, NULL, 0);

setsockopt(0, IPPROTO_TCP, TCP_KEEPCNT, NULL, 0)"

. auto/feature

ngx_feature="TCP_FASTOPEN"

ngx_feature_name="NGX_HAVE_TCP_FASTOPEN"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>

#include <netinet/tcp.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_FASTOPEN, NULL, 0)"

. auto/feature

ngx_feature="TCP_INFO"

ngx_feature_name="NGX_HAVE_TCP_INFO"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>

#include <netinet/tcp.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="socklen_t optlen = sizeof(struct tcp_info);

struct tcp_info ti;

ti.tcpi_rtt = 0;

ti.tcpi_rttvar = 0;

ti.tcpi_snd_cwnd = 0;

ti.tcpi_rcv_space = 0;

getsockopt(0, IPPROTO_TCP, TCP_INFO, &ti, &optlen)"

. auto/feature

ngx_feature="accept4()"

ngx_feature_name="NGX_HAVE_ACCEPT4"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="accept4(0, NULL, NULL, SOCK_NONBLOCK)"

. auto/feature

if [ $NGX_FILE_AIO = YES ]; then

ngx_feature="kqueue AIO support"

ngx_feature_name="NGX_HAVE_FILE_AIO"

ngx_feature_run=no

ngx_feature_incs="#include <aio.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct aiocb iocb;

iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;

(void) aio_read(&iocb)"

. auto/feature

if [ $ngx_found = yes ]; then

CORE_SRCS="$CORE_SRCS $FILE_AIO_SRCS"

fi

if [ $ngx_found = no ]; then

ngx_feature="Linux AIO support"

ngx_feature_name="NGX_HAVE_FILE_AIO"

ngx_feature_run=no

ngx_feature_incs="#include <linux/aio_abi.h>

#include <sys/eventfd.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct iocb iocb;

iocb.aio_lio_opcode = IOCB_CMD_PREAD;

iocb.aio_flags = IOCB_FLAG_RESFD;

iocb.aio_resfd = -1;

(void) iocb;

(void) eventfd(0, 0)"

. auto/feature

if [ $ngx_found = yes ]; then

have=NGX_HAVE_EVENTFD . auto/have

have=NGX_HAVE_SYS_EVENTFD_H . auto/have

CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS"

fi

fi

if [ $ngx_found = no ]; then

ngx_feature="Linux AIO support (SYS_eventfd)"

ngx_feature_incs="#include <linux/aio_abi.h>

#include <sys/syscall.h>"

ngx_feature_test="struct iocb iocb;

iocb.aio_lio_opcode = IOCB_CMD_PREAD;

iocb.aio_flags = IOCB_FLAG_RESFD;

iocb.aio_resfd = -1;

(void) iocb;

(void) SYS_eventfd"

. auto/feature

if [ $ngx_found = yes ]; then

have=NGX_HAVE_EVENTFD . auto/have

CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS"

fi

fi

if [ $ngx_found = no ]; then

cat << END

$0: no supported file AIO was found

Currently file AIO is supported on FreeBSD 4.3 and Linux 2.6.22 only

END

exit 1

fi

else

ngx_feature="eventfd()"

ngx_feature_name="NGX_HAVE_EVENTFD"

ngx_feature_run=no

ngx_feature_incs="#include <sys/eventfd.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="(void) eventfd(0, 0)"

. auto/feature

if [ $ngx_found = yes ]; then

have=NGX_HAVE_SYS_EVENTFD_H . auto/have

fi

if [ $ngx_found = no ]; then

ngx_feature="eventfd() (SYS_eventfd)"

ngx_feature_incs="#include <sys/syscall.h>"

ngx_feature_test="(void) SYS_eventfd"

. auto/feature

fi

fi

have=NGX_HAVE_UNIX_DOMAIN . auto/have

ngx_feature_libs=

# C types

ngx_type="int"; . auto/types/sizeof

ngx_type="long"; . auto/types/sizeof

ngx_type="long long"; . auto/types/sizeof

ngx_type="void *"; . auto/types/sizeof; ngx_ptr_size=$ngx_size

ngx_param=NGX_PTR_SIZE; ngx_value=$ngx_size; . auto/types/value

# POSIX types

NGX_INCLUDE_AUTO_CONFIG_H="#include \"ngx_auto_config.h\""

ngx_type="uint32_t"; ngx_types="u_int32_t"; . auto/types/typedef

ngx_type="uint64_t"; ngx_types="u_int64_t"; . auto/types/typedef

ngx_type="sig_atomic_t"; ngx_types="int"; . auto/types/typedef

. auto/types/sizeof

ngx_param=NGX_SIG_ATOMIC_T_SIZE; ngx_value=$ngx_size; . auto/types/value

ngx_type="socklen_t"; ngx_types="int"; . auto/types/typedef

ngx_type="in_addr_t"; ngx_types="uint32_t u_int32_t"; . auto/types/typedef

ngx_type="in_port_t"; ngx_types="u_short"; . auto/types/typedef

ngx_type="rlim_t"; ngx_types="int"; . auto/types/typedef

. auto/types/uintptr_t

. auto/endianness

ngx_type="size_t"; . auto/types/sizeof

ngx_param=NGX_MAX_SIZE_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value

ngx_param=NGX_SIZE_T_LEN; ngx_value=$ngx_max_len; . auto/types/value

ngx_type="off_t"; . auto/types/sizeof

ngx_param=NGX_MAX_OFF_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value

ngx_param=NGX_OFF_T_LEN; ngx_value=$ngx_max_len; . auto/types/value

ngx_type="time_t"; . auto/types/sizeof

ngx_param=NGX_TIME_T_SIZE; ngx_value=$ngx_size; . auto/types/value

ngx_param=NGX_TIME_T_LEN; ngx_value=$ngx_max_len; . auto/types/value

ngx_param=NGX_MAX_TIME_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value

# syscalls, libc calls and some features

ngx_feature="AF_INET6"

ngx_feature_name="NGX_HAVE_INET6"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct sockaddr_in6 sin6;

sin6.sin6_family = AF_INET6;

(void) sin6"

. auto/feature

ngx_feature="setproctitle()"

ngx_feature_name="NGX_HAVE_SETPROCTITLE"

ngx_feature_run=no

ngx_feature_incs="#include <stdlib.h>"

ngx_feature_path=

ngx_feature_libs=$NGX_SETPROCTITLE_LIB

ngx_feature_test="setproctitle(\"test\");"

. auto/feature

ngx_feature="pread()"

ngx_feature_name="NGX_HAVE_PREAD"

ngx_feature_run=no

ngx_feature_incs=

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="char buf[1]; ssize_t n; n = pread(0, buf, 1, 0);

if (n == -1) return 1"

. auto/feature

ngx_feature="pwrite()"

ngx_feature_name="NGX_HAVE_PWRITE"

ngx_feature_run=no

ngx_feature_incs=

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="char buf[1]; ssize_t n; n = pwrite(1, buf, 1, 0);

if (n == -1) return 1"

. auto/feature

# pwritev() was introduced in FreeBSD 6 and Linux 2.6.30, glibc 2.10

ngx_feature="pwritev()"

ngx_feature_name="NGX_HAVE_PWRITEV"

ngx_feature_run=no

ngx_feature_incs='#include <sys/uio.h>'

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="char buf[1]; struct iovec vec[1]; ssize_t n;

vec[0].iov_base = buf;

vec[0].iov_len = 1;

n = pwritev(1, vec, 1, 0);

if (n == -1) return 1"

. auto/feature

ngx_feature="sys_nerr"

ngx_feature_name="NGX_SYS_NERR"

ngx_feature_run=value

ngx_feature_incs='#include <errno.h>

#include <stdio.h>'

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test='printf("%d", sys_nerr);'

. auto/feature

if [ $ngx_found = no ]; then

# Cygiwn defines _sys_nerr

ngx_feature="_sys_nerr"

ngx_feature_name="NGX_SYS_NERR"

ngx_feature_run=value

ngx_feature_incs='#include <errno.h>

#include <stdio.h>'

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test='printf("%d", _sys_nerr);'

. auto/feature

fi

if [ $ngx_found = no ]; then

# Solaris has no sys_nerr

ngx_feature='maximum errno'

ngx_feature_name=NGX_SYS_NERR

ngx_feature_run=value

ngx_feature_incs='#include <errno.h>

#include <string.h>

#include <stdio.h>'

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test='int n;

char *p;

for (n = 1; n < 1000; n ) {

errno = 0;

p = strerror(n);

if (errno == EINVAL

|| p == NULL

|| strncmp(p, "Unknown error", 13) == 0)

{

break;

}

}

printf("%d", n);'

. auto/feature

fi

ngx_feature="localtime_r()"

ngx_feature_name="NGX_HAVE_LOCALTIME_R"

ngx_feature_run=no

ngx_feature_incs="#include <time.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct tm t; time_t c=0; localtime_r(&c, &t)"

. auto/feature

ngx_feature="clock_gettime(CLOCK_MONOTONIC)"

ngx_feature_name="NGX_HAVE_CLOCK_MONOTONIC"

ngx_feature_run=no

ngx_feature_incs="#include <time.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts)"

. auto/feature

if [ $ngx_found = no ]; then

# Linux before glibc 2.17, notably CentOS 6

ngx_feature="clock_gettime(CLOCK_MONOTONIC) in librt"

ngx_feature_libs="-lrt"

. auto/feature

if [ $ngx_found = yes ]; then

CORE_LIBS="$CORE_LIBS -lrt"

fi

fi

ngx_feature="posix_memalign()"

ngx_feature_name="NGX_HAVE_POSIX_MEMALIGN"

ngx_feature_run=no

ngx_feature_incs="#include <stdlib.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="void *p; int n; n = posix_memalign(&p, 4096, 4096);

if (n != 0) return 1"

. auto/feature

ngx_feature="memalign()"

ngx_feature_name="NGX_HAVE_MEMALIGN"

ngx_feature_run=no

ngx_feature_incs="#include <stdlib.h>

#include <malloc.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="void *p; p = memalign(4096, 4096);

if (p == NULL) return 1"

. auto/feature

ngx_feature="mmap(MAP_ANON|MAP_SHARED)"

ngx_feature_name="NGX_HAVE_MAP_ANON"

ngx_feature_run=yes

ngx_feature_incs="#include <sys/mman.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="void *p;

p = mmap(NULL, 4096, PROT_READ|PROT_WRITE,

MAP_ANON|MAP_SHARED, -1, 0);

if (p == MAP_FAILED) return 1;"

. auto/feature

ngx_feature='mmap("/dev/zero", MAP_SHARED)'

ngx_feature_name="NGX_HAVE_MAP_DEVZERO"

ngx_feature_run=yes

ngx_feature_incs="#include <sys/mman.h>

#include <sys/stat.h>

#include <fcntl.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test='void *p; int fd;

fd = open("/dev/zero", O_RDWR);

p = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);

if (p == MAP_FAILED) return 1;'

. auto/feature

ngx_feature="System V shared memory"

ngx_feature_name="NGX_HAVE_SYSVSHM"

ngx_feature_run=yes

ngx_feature_incs="#include <sys/ipc.h>

#include <sys/shm.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int id;

id = shmget(IPC_PRIVATE, 4096, (SHM_R|SHM_W|IPC_CREAT));

if (id == -1) return 1;

shmctl(id, IPC_RMID, NULL);"

. auto/feature

ngx_feature="POSIX semaphores"

ngx_feature_name="NGX_HAVE_POSIX_SEM"

ngx_feature_run=yes

ngx_feature_incs="#include <semaphore.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="sem_t sem;

if (sem_init(&sem, 1, 0) == -1) return 1;

sem_destroy(&sem);"

. auto/feature

if [ $ngx_found = no ]; then

# Linux has POSIX semaphores in libpthread

ngx_feature="POSIX semaphores in libpthread"

ngx_feature_libs=-lpthread

. auto/feature

if [ $ngx_found = yes ]; then

CORE_LIBS="$CORE_LIBS -lpthread"

NGX_LIBPTHREAD="-lpthread"

fi

fi

if [ $ngx_found = no ]; then

# Solaris has POSIX semaphores in librt

ngx_feature="POSIX semaphores in librt"

ngx_feature_libs=-lrt

. auto/feature

if [ $ngx_found = yes ]; then

CORE_LIBS="$CORE_LIBS -lrt"

fi

fi

ngx_feature="struct msghdr.msg_control"

ngx_feature_name="NGX_HAVE_MSGHDR_MSG_CONTROL"

ngx_feature_run=no

ngx_feature_incs="#include <sys/socket.h>

#include <stdio.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct msghdr msg;

printf(\"%d\", (int) sizeof(msg.msg_control))"

. auto/feature

ngx_feature="ioctl(FIONBIO)"

ngx_feature_name="NGX_HAVE_FIONBIO"

ngx_feature_run=no

ngx_feature_incs="#include <sys/ioctl.h>

#include <stdio.h>

$NGX_INCLUDE_SYS_FILIO_H"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int i = FIONBIO; printf(\"%d\", i)"

. auto/feature

ngx_feature="ioctl(FIONREAD)"

ngx_feature_name="NGX_HAVE_FIONREAD"

ngx_feature_run=no

ngx_feature_incs="#include <sys/ioctl.h>

#include <stdio.h>

$NGX_INCLUDE_SYS_FILIO_H"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="int i = FIONREAD; printf(\"%d\", i)"

. auto/feature

ngx_feature="struct tm.tm_gmtoff"

ngx_feature_name="NGX_HAVE_GMTOFF"

ngx_feature_run=no

ngx_feature_incs="#include <time.h>

#include <stdio.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct tm tm; tm.tm_gmtoff = 0;

printf(\"%d\", (int) tm.tm_gmtoff)"

. auto/feature

ngx_feature="struct dirent.d_namlen"

ngx_feature_name="NGX_HAVE_D_NAMLEN"

ngx_feature_run=no

ngx_feature_incs="#include <dirent.h>

#include <stdio.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct dirent dir; dir.d_namlen = 0;

printf(\"%d\", (int) dir.d_namlen)"

. auto/feature

ngx_feature="struct dirent.d_type"

ngx_feature_name="NGX_HAVE_D_TYPE"

ngx_feature_run=no

ngx_feature_incs="#include <dirent.h>

#include <stdio.h>"

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="struct dirent dir; dir.d_type = DT_REG;

printf(\"%d\", (int) dir.d_type)"

. auto/feature

ngx_feature="sysconf(_SC_NPROCESSORS_ONLN)"

ngx_feature_name="NGX_HAVE_SC_NPROCESSORS_ONLN"

ngx_feature_run=no

ngx_feature_incs=

ngx_feature_path=

ngx_feature_libs=

ngx_feature_test="sysconf(_SC_NPROCESSORS_ONLN)"