new file mode 100755
--- /dev/null
+++ b/auto/unix
@@ -0,0 +1,199 @@
+
+# Copyright (C) Igor Sysoev
+
+
+CC_WARN=$CC
+ngx_fmt_collect=yes
+
+# C types
+
+ngx_type="int"; . auto/types/sizeof
+ngx_formats="%d"; . auto/fmt/fmt
+
+ngx_type="long"; . auto/types/sizeof
+ngx_formats="%ld"; . auto/fmt/fmt
+
+ngx_type="long long"; . auto/types/sizeof
+ngx_formats="%lld %qd"; . auto/fmt/fmt
+
+ngx_type="void *"; . auto/types/sizeof; ngx_ptr_size=$ngx_size
+ngx_fmt_name=PTR_FMT;
+eval ngx_formats=\${ngx_${ngx_ptr_size}_fmt}; . auto/fmt/ptrfmt
+
+
+# POSIX types
+
+NGX_AUTO_CONFIG="#include \"../$NGX_AUTO_CONFIG_H\""
+
+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=SIG_ATOMIC_T_SIZE; ngx_value=$ngx_size; . auto/types/value
+
+ngx_type="socklen_t"; ngx_types="uint32_t"; . auto/types/typedef
+
+ngx_type="in_addr_t"; ngx_types="uint32_t"; . auto/types/typedef
+
+ngx_type="in_port_t"; ngx_types="u_short"; . auto/types/typedef
+
+ngx_type="rlim_t"; ngx_types="int"; . auto/types/typedef
+
+. auto/types/uintptr_t
+
+. auto/endianess
+
+
+# printf() formats
+
+CC_WARN=$CC_STRONG
+ngx_fmt_collect=no
+
+ngx_fmt_name=OFF_T_FMT; ngx_type="off_t"; . auto/types/sizeof
+ngx_param=OFF_T_MAX_VALUE; ngx_value=$ngx_max_value; . auto/types/value
+eval ngx_formats=\${ngx_${ngx_size}_fmt}; . auto/fmt/fmt
+
+ngx_fmt_name=TIME_T_FMT; ngx_type="time_t"; . auto/types/sizeof
+ngx_param=TIME_T_SIZE; ngx_value=$ngx_size; . auto/types/value
+ngx_param=TIME_T_LEN; ngx_value=$ngx_max_len; . auto/types/value
+eval ngx_formats=\${ngx_${ngx_size}_fmt}; . auto/fmt/fmt
+
+ngx_fmt_name=SIZE_T_FMT; ngx_type="size_t"; . auto/types/sizeof
+eval ngx_formats=\${ngx_${ngx_size}_fmt}; . auto/fmt/fmt
+
+ngx_fmt_name=SIZE_T_X_FMT; . auto/fmt/xfmt
+
+ngx_fmt_name=PID_T_FMT; ngx_type="pid_t"; . auto/types/sizeof
+eval ngx_formats=\${ngx_${ngx_size}_fmt}; . auto/fmt/fmt
+
+ngx_fmt_name=RLIM_T_FMT; ngx_type="rlim_t"; . auto/types/sizeof
+eval ngx_formats=\${ngx_${ngx_size}_fmt}; . auto/fmt/fmt
+
+
+# syscalls, libc calls and some features
+
+ngx_feature_libs=
+ngx_func_libs=
+
+
+ngx_func="pread()"
+ngx_func_inc=
+ngx_func_test="char buf[1]; ssize_t n; n = pread(0, buf, 1, 0)"
+. auto/func
+
+
+ngx_func="pwrite()"
+ngx_func_inc=
+ngx_func_test="char buf[1]; ssize_t n; n = pwrite(1, buf, 1, 0)"
+. auto/func
+
+
+#ngx_func="strsignal()"
+#ngx_func_inc="#include <string.h>"
+#ngx_func_test="char *s = strsignal(1)"
+#. auto/func
+
+
+ngx_func="strerror_r()"
+ngx_func_inc="#include <string.h>"
+ngx_func_test="char buf[20]; int n; n = strerror_r(1, buf, 20)"
+. auto/func
+
+
+ngx_func="gnu_strerror_r()"
+ngx_func_inc="#include <string.h>"
+ngx_func_test="char buf[20], *str; str = strerror_r(1, buf, 20)"
+. auto/func
+
+
+ngx_func="localtime_r()"
+ngx_func_inc="#include <time.h>"
+ngx_func_test="struct tm t; time_t c=0; localtime_r(&c, &t)"
+. auto/func
+
+
+ngx_func="posix_memalign()"
+ngx_func_inc="#include <stdlib.h>"
+ngx_func_test="void *p; int n; n = posix_memalign(&p, 4096, 4096)"
+. auto/func
+
+
+ngx_func="memalign()"
+ngx_func_inc="#include <stdlib.h>"
+ngx_func_test="void *p; p = memalign(4096, 4096)"
+. auto/func
+
+
+
+ngx_feature="mmap(MAP_ANON|MAP_SHARED)"
+ngx_feature_name="MAP_ANON"
+ngx_feature_inc="#include <sys/mman.h>"
+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;"
+ngx_feature_run=yes
+. auto/feature
+
+
+ngx_feature='mmap("/dev/zero", MAP_SHARED)'
+ngx_feature_name="MAP_DEVZERO"
+ngx_feature_inc="#include <sys/mman.h>
+#include <sys/stat.h>
+#include <fcntl.h>"
+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="SYSVSHM"
+ngx_feature_inc="#include <sys/ipc.h>
+#include <sys/shm.h>"
+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="struct sockaddr_in.sin_len"
+ngx_feature_name="sin_len"
+ngx_feature_inc="#include <sys/socket.h>
+#include <netinet/in.h>"
+ngx_feature_test="struct sockaddr_in sa; sa.sin_len = 5"
+ngx_feature_run=no
+. auto/feature
+
+
+ngx_feature="struct msghdr.msg_control"
+ngx_feature_name="msghdr_msg_control"
+ngx_feature_inc="#include <sys/socket.h>"
+ngx_feature_test="struct msghdr  msg; msg.msg_control = NULL"
+. auto/feature
+
+
+case $PLATFORM in
+    Linux:*)
+        ngx_feature_inc="#include <sys/ioctl.h>"
+    ;;
+
+    *)
+        ngx_feature_inc="#include <sys/filio.h>"
+    ;;
+esac
+
+ngx_feature="ioctl(FIONBIO)"
+ngx_feature_name="FIONBIO"
+ngx_feature_test="int i; i = FIONBIO"
+. auto/feature
+
+
+ngx_feature="struct tm.tm_gmtoff"
+ngx_feature_name="gmtoff"
+ngx_feature_inc="#include <time.h>"
+ngx_feature_test="struct tm  tm; tm.tm_gmtoff = 0"
+. auto/feature