WIP: add nginx (currently, parsing only)

nginx/.frama-c/GNUmakefile

+# Makefile template for Frama-C/Eva case studies.
+# For details and usage information, see the Frama-C User Manual.
+
+### Prologue. Do not modify this block. #######################################
+-include path.mk # path.mk contains variables specific to each user
+                 # (e.g. FRAMAC, FRAMAC_GUI) and should not be versioned. It is
+                 # an optional include, unnecessary if frama-c is in the PATH.
+FRAMAC ?= frama-c # FRAMAC is defined in path.mk when it is included, but the
+                  # user can override it in the command-line.
+ifeq ($(FRAMAC_SHARE),)
+  FRAMAC_SHARE := $(shell $(FRAMAC)-config -print-share-path)
+endif
+include $(FRAMAC_SHARE)/analysis-scripts/prologue.mk
+###############################################################################
+
+# Edit below as needed. Suggested flags are optional.
+
+MACHDEP = gcc_x86_64
+
+## Preprocessing flags (for -cpp-extra-args)
+CPPFLAGS    += \
+  -DNGX_HAVE_SYS_PRCTL_H=0 \
+  -DNGX_HAVE_EPOLL=0 \
+  -DNGX_HAVE_SYS_EVENTFD_H=0 \
+  -DNGX_HAVE_CAPABILITIES=0 \
+  -DNGX_HAVE_UDP_SEGMENT=0 \
+  -DNGX_HAVE_SCHED_SETAFFINITY=0 \
+  -DNGX_HAVE_CPUSET_SETAFFINITY=0 \
+  -DNGX_HAVE_IP_PKTINFO=0 \
+  -DNGX_HAVE_INET6=0 \
+  -DNGX_HAVE_GMTOFF=0 \
+  -DNGX_HAVE_EPOLLEXCLUSIVE=0 \
+  -DNGX_HAVE_ACCEPT4=0 \
+  -DNGX_HAVE_IP_BIND_ADDRESS_NO_PORT=0 \
+  -DNGX_HAVE_TCP_INFO=0 \
+  -DNGX_HAVE_STRERRORDESC_NP=0 \
+  -DNGX_HAVE_PWRITEV=0 \
+  -DNGX_HAVE_POSIX_FADVISE=0 \
+  -DNGX_HAVE_PR_SET_DUMPABLE=0 \
+  -DNGX_CRYPT=0 \
+  -DNGX_HAVE_STATFS=0 \
+
+
+## General flags
+FCFLAGS     += \
+  -json-compilation-database ../build_commands.json \
+  -add-symbolic-path=..:. \
+  -kernel-warn-key annot:missing-spec=abort \
+  -kernel-warn-key typing:implicit-function-declaration=abort \
+
+## Eva-specific flags
+EVAFLAGS    += \
+  -eva-warn-key builtins:missing-spec=abort \
+
+## WP-specific flags
+WPFLAGS    += \
+
+## GUI-only flags
+FCGUIFLAGS += \
+
+## Analysis targets (suffixed with .eva)
+TARGETS = \
+  objs_nginx.eva \
+
+### Each target <t>.eva needs a rule <t>.parse with source files as prerequisites
+objs_nginx.parse: \
+  fc_stubs.c \
+  ../objs/ngx_modules.c \
+  ../src/core/nginx.c \
+  ../src/core/ngx_array.c \
+  ../src/core/ngx_buf.c \
+  ../src/core/ngx_conf_file.c \
+  ../src/core/ngx_connection.c \
+  ../src/core/ngx_cpuinfo.c \
+  ../src/core/ngx_crc32.c \
+  ../src/core/ngx_crypt.c \
+  ../src/core/ngx_cycle.c \
+  ../src/core/ngx_file.c \
+  ../src/core/ngx_hash.c \
+  ../src/core/ngx_inet.c \
+  ../src/core/ngx_list.c \
+  ../src/core/ngx_log.c \
+  ../src/core/ngx_md5.c \
+  ../src/core/ngx_module.c \
+  ../src/core/ngx_murmurhash.c \
+  ../src/core/ngx_open_file_cache.c \
+  ../src/core/ngx_output_chain.c \
+  ../src/core/ngx_palloc.c \
+  ../src/core/ngx_parse.c \
+  ../src/core/ngx_parse_time.c \
+  ../src/core/ngx_proxy_protocol.c \
+  ../src/core/ngx_queue.c \
+  ../src/core/ngx_radix_tree.c \
+  ../src/core/ngx_rbtree.c \
+  ../src/core/ngx_resolver.c \
+  ../src/core/ngx_rwlock.c \
+  ../src/core/ngx_sha1.c \
+  ../src/core/ngx_shmtx.c \
+  ../src/core/ngx_slab.c \
+  ../src/core/ngx_spinlock.c \
+  ../src/core/ngx_string.c \
+  ../src/core/ngx_syslog.c \
+  ../src/core/ngx_times.c \
+  ../src/event/ngx_event.c \
+  ../src/event/ngx_event_accept.c \
+  ../src/event/ngx_event_connect.c \
+  ../src/event/ngx_event_pipe.c \
+  ../src/event/ngx_event_posted.c \
+  ../src/event/ngx_event_timer.c \
+  ../src/event/ngx_event_udp.c \
+  ../src/http/modules/ngx_http_access_module.c \
+  ../src/http/modules/ngx_http_auth_basic_module.c \
+  ../src/http/modules/ngx_http_autoindex_module.c \
+  ../src/http/modules/ngx_http_browser_module.c \
+  ../src/http/modules/ngx_http_charset_filter_module.c \
+  ../src/http/modules/ngx_http_chunked_filter_module.c \
+  ../src/http/modules/ngx_http_empty_gif_module.c \
+  ../src/http/modules/ngx_http_fastcgi_module.c \
+  ../src/http/modules/ngx_http_geo_module.c \
+  ../src/http/modules/ngx_http_headers_filter_module.c \
+  ../src/http/modules/ngx_http_index_module.c \
+  ../src/http/modules/ngx_http_limit_conn_module.c \
+  ../src/http/modules/ngx_http_limit_req_module.c \
+  ../src/http/modules/ngx_http_log_module.c \
+  ../src/http/modules/ngx_http_map_module.c \
+  ../src/http/modules/ngx_http_memcached_module.c \
+  ../src/http/modules/ngx_http_mirror_module.c \
+  ../src/http/modules/ngx_http_not_modified_filter_module.c \
+  ../src/http/modules/ngx_http_proxy_module.c \
+  ../src/http/modules/ngx_http_range_filter_module.c \
+  ../src/http/modules/ngx_http_referer_module.c \
+  ../src/http/modules/ngx_http_scgi_module.c \
+  ../src/http/modules/ngx_http_split_clients_module.c \
+  ../src/http/modules/ngx_http_ssi_filter_module.c \
+  ../src/http/modules/ngx_http_static_module.c \
+  ../src/http/modules/ngx_http_try_files_module.c \
+  ../src/http/modules/ngx_http_upstream_hash_module.c \
+  ../src/http/modules/ngx_http_upstream_ip_hash_module.c \
+  ../src/http/modules/ngx_http_upstream_keepalive_module.c \
+  ../src/http/modules/ngx_http_upstream_least_conn_module.c \
+  ../src/http/modules/ngx_http_upstream_random_module.c \
+  ../src/http/modules/ngx_http_upstream_zone_module.c \
+  ../src/http/modules/ngx_http_userid_filter_module.c \
+  ../src/http/modules/ngx_http_uwsgi_module.c \
+  ../src/http/ngx_http.c \
+  ../src/http/ngx_http_copy_filter_module.c \
+  ../src/http/ngx_http_core_module.c \
+  ../src/http/ngx_http_file_cache.c \
+  ../src/http/ngx_http_header_filter_module.c \
+  ../src/http/ngx_http_parse.c \
+  ../src/http/ngx_http_postpone_filter_module.c \
+  ../src/http/ngx_http_request.c \
+  ../src/http/ngx_http_request_body.c \
+  ../src/http/ngx_http_script.c \
+  ../src/http/ngx_http_special_response.c \
+  ../src/http/ngx_http_upstream.c \
+  ../src/http/ngx_http_upstream_round_robin.c \
+  ../src/http/ngx_http_variables.c \
+  ../src/http/ngx_http_write_filter_module.c \
+  ../src/os/unix/ngx_alloc.c \
+  ../src/os/unix/ngx_channel.c \
+  ../src/os/unix/ngx_daemon.c \
+  ../src/os/unix/ngx_dlopen.c \
+  ../src/os/unix/ngx_errno.c \
+  ../src/os/unix/ngx_files.c \
+  ../src/os/unix/ngx_linux_init.c \
+  ../src/os/unix/ngx_linux_sendfile_chain.c \
+  ../src/os/unix/ngx_posix_init.c \
+  ../src/os/unix/ngx_process.c \
+  ../src/os/unix/ngx_process_cycle.c \
+  ../src/os/unix/ngx_readv_chain.c \
+  ../src/os/unix/ngx_recv.c \
+  ../src/os/unix/ngx_send.c \
+  ../src/os/unix/ngx_setaffinity.c \
+  ../src/os/unix/ngx_setproctitle.c \
+  ../src/os/unix/ngx_shmem.c \
+  ../src/os/unix/ngx_socket.c \
+  ../src/os/unix/ngx_time.c \
+  ../src/os/unix/ngx_udp_recv.c \
+  ../src/os/unix/ngx_udp_send.c \
+  ../src/os/unix/ngx_udp_sendmsg_chain.c \
+  ../src/os/unix/ngx_user.c \
+  ../src/os/unix/ngx_writev_chain.c \
+
+objs_nginx.parse: FCFLAGS += -main eva_main
+
+
+### Epilogue. Do not modify this block. #######################################
+include $(FRAMAC_SHARE)/analysis-scripts/epilogue.mk
+###############################################################################

nginx/.frama-c/fc_stubs.c

+// Stub for a main function which reads arguments from the command line, to be
+// used by the Eva plug-in.
+// This stub emulates non-deterministic input of up to 5 arguments, each up
+// to 256 characters long. This is sufficient to ensure arbitrary input in
+// virtually every case.
+// Do not forget to add option '-main eva_main' in order to use this stub.
+
+#ifdef __FRAMAC__
+# include "__fc_builtin.h"
+int main(int, char **);
+static volatile int nondet;
+int eva_main() {
+  int argc = Frama_C_interval(0, 5);
+  char argv0[256], argv1[256], argv2[256], argv3[256], argv4[256];
+  char *argv[6] = {argv0, argv1, argv2, argv3, argv4, 0};
+  //@ loop unroll 5;
+  for (int i = 0; i < 5; i++) {
+    Frama_C_make_unknown(argv[i], 255);
+    argv[i][255] = 0;
+  }
+  return main(argc, argv);
+}
+#endif // __FRAMAC__
\ No newline at end of file

nginx/.gitignore

+objs/autoconf.err

nginx/Makefile

+
+default:	build
+
+clean:
+	rm -rf Makefile objs
+
+.PHONY:	default clean
+
+build:
+	$(MAKE) -f objs/Makefile
+
+install:
+	$(MAKE) -f objs/Makefile install
+
+modules:
+	$(MAKE) -f objs/Makefile modules
+
+upgrade:
+	/usr/local/nginx/sbin/nginx -t
+
+	kill -USR2 `cat /usr/local/nginx/logs/nginx.pid`
+	sleep 1
+	test -f /usr/local/nginx/logs/nginx.pid.oldbin
+
+	kill -QUIT `cat /usr/local/nginx/logs/nginx.pid.oldbin`
+
+.PHONY:	build install modules upgrade

nginx/auto/cc/acc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# aCC: HP ANSI C++ B3910B A.03.55.02
+
+# C89 mode
+
+CFLAGS="$CFLAGS -Ae"
+CC_TEST_FLAGS="-Ae"
+
+PCRE_OPT="$PCRE_OPT -Ae"
+ZLIB_OPT="$ZLIB_OPT -Ae"

nginx/auto/cc/bcc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# Borland C++ 5.5
+
+# optimizations
+
+# maximize speed
+CFLAGS="$CFLAGS -O2"
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        CPU_OPT="-5"
+    ;;
+
+    pentiumpro)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        CPU_OPT="-6"
+    ;;
+esac
+
+# __stdcall
+#CPU_OPT="$CPU_OPT -ps"
+# __fastcall
+#CPU_OPT="$CPU_OPT -pr"
+
+CFLAGS="$CFLAGS $CPU_OPT"
+
+# multithreaded
+CFLAGS="$CFLAGS -tWM"
+
+# stop on warning
+CFLAGS="$CFLAGS -w!"
+
+# disable logo
+CFLAGS="$CFLAGS -q"
+
+
+# precompiled headers
+CORE_DEPS="$CORE_DEPS $NGX_OBJS/ngx_config.csm"
+NGX_PCH="$NGX_OBJS/ngx_config.csm"
+NGX_BUILD_PCH="-H=$NGX_OBJS/ngx_config.csm"
+NGX_USE_PCH="-Hu -H=$NGX_OBJS/ngx_config.csm"
+
+
+# Win32 GUI mode application
+#LINK="\$(CC) -laa"
+
+
+# the resource file
+NGX_RES="$NGX_OBJS/nginx.res"
+NGX_RCC="brcc32 -fo$NGX_OBJS/nginx.res \$(CORE_INCS) $NGX_WIN32_RC"
+# the pragma allows to link the resource file using bcc32 and
+# to avoid the direct ilink32 calling and the c0w32.obj's WinMain/main problem
+NGX_PRAGMA="#pragma resource \"$NGX_OBJS/nginx.res\""
+
+
+ngx_include_opt="-I"
+ngx_objout="-o"
+ngx_binout="-e"
+ngx_objext="obj"
+
+ngx_long_start='@&&|
+	'
+ngx_long_end='|'
+
+ngx_regex_dirsep='\\'
+ngx_dirsep="\\"

nginx/auto/cc/ccc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# Compaq C V6.5-207
+
+ngx_include_opt="-I"
+
+# warnings
+
+CFLAGS="$CFLAGS -msg_enable level6 -msg_fatal level6"
+
+CFLAGS="$CFLAGS -msg_disable unknownmacro"
+CFLAGS="$CFLAGS -msg_disable unusedincl"
+CFLAGS="$CFLAGS -msg_disable unnecincl"
+CFLAGS="$CFLAGS -msg_disable nestincl"
+CFLAGS="$CFLAGS -msg_disable strctpadding"
+CFLAGS="$CFLAGS -msg_disable ansialiascast"
+CFLAGS="$CFLAGS -msg_disable inlinestoclsmod"
+CFLAGS="$CFLAGS -msg_disable cxxkeyword"
+CFLAGS="$CFLAGS -msg_disable longlongsufx"
+CFLAGS="$CFLAGS -msg_disable valuepres"
+
+# STUB
+CFLAGS="$CFLAGS -msg_disable truncintcast"
+CFLAGS="$CFLAGS -msg_disable trunclongcast"
+
+CFLAGS="$CFLAGS -msg_disable truncintasn"
+CFLAGS="$CFLAGS -msg_disable trunclongint"
+CFLAGS="$CFLAGS -msg_disable intconcastsgn"
+CFLAGS="$CFLAGS -msg_disable intconstsign"
+CFLAGS="$CFLAGS -msg_disable switchlong"
+CFLAGS="$CFLAGS -msg_disable subscrbounds2"
+
+CFLAGS="$CFLAGS -msg_disable hexoctunsign"
+
+CFLAGS="$CFLAGS -msg_disable ignorecallval"
+CFLAGS="$CFLAGS -msg_disable nonstandcast"
+CFLAGS="$CFLAGS -msg_disable embedcomment"
+CFLAGS="$CFLAGS -msg_disable unreachcode"
+CFLAGS="$CFLAGS -msg_disable questcompare2"
+CFLAGS="$CFLAGS -msg_disable unusedtop"
+CFLAGS="$CFLAGS -msg_disable unrefdecl"
+
+CFLAGS="$CFLAGS -msg_disable bitnotint"

nginx/auto/cc/clang

+
+# Copyright (C) Nginx, Inc.
+
+
+# clang
+
+
+NGX_CLANG_VER=`$CC -v 2>&1 | grep 'version' 2>&1 \
+                           | sed -n -e 's/^.*clang version \(.*\)/\1/p' \
+                                    -e 's/^.*LLVM version \(.*\)/\1/p'`
+
+echo " + clang version: $NGX_CLANG_VER"
+
+have=NGX_COMPILER value="\"clang $NGX_CLANG_VER\"" . auto/define
+
+
+CC_TEST_FLAGS="-pipe"
+
+
+# optimizations
+
+#NGX_CLANG_OPT="-O2"
+#NGX_CLANG_OPT="-Oz"
+NGX_CLANG_OPT="-O"
+
+case $CPU in
+    pentium)
+        # optimize for Pentium
+        CPU_OPT="-march=pentium"
+        NGX_CPU_CACHE_LINE=32
+    ;;
+
+    pentiumpro | pentium3)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        CPU_OPT="-march=pentiumpro"
+        NGX_CPU_CACHE_LINE=32
+    ;;
+
+    pentium4)
+        # optimize for Pentium 4
+        CPU_OPT="-march=pentium4"
+        NGX_CPU_CACHE_LINE=128
+    ;;
+
+    athlon)
+        # optimize for Athlon
+        CPU_OPT="-march=athlon"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    opteron)
+        # optimize for Opteron
+        CPU_OPT="-march=opteron"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+esac
+
+CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
+
+
+CFLAGS="$CFLAGS -pipe $CPU_OPT"
+
+if [ ".$PCRE_OPT" = "." ]; then
+    PCRE_OPT="-O2 -pipe $CPU_OPT"
+else
+    PCRE_OPT="$PCRE_OPT -pipe"
+fi
+
+if [ ".$ZLIB_OPT" = "." ]; then
+    ZLIB_OPT="-O2 -pipe $CPU_OPT"
+else
+    ZLIB_OPT="$ZLIB_OPT -pipe"
+fi
+
+
+# warnings
+
+CFLAGS="$CFLAGS $NGX_CLANG_OPT -Wall -Wextra -Wpointer-arith"
+CFLAGS="$CFLAGS -Wconditional-uninitialized"
+#CFLAGS="$CFLAGS -Wmissing-prototypes"
+
+# we have a lot of unused function arguments
+CFLAGS="$CFLAGS -Wno-unused-parameter"
+
+# deprecated system OpenSSL library on OS X
+if [ "$NGX_SYSTEM" = "Darwin" ]; then
+    CFLAGS="$CFLAGS -Wno-deprecated-declarations"
+fi
+
+# stop on warning
+CFLAGS="$CFLAGS -Werror"
+
+# debug
+CFLAGS="$CFLAGS -g"
+
+if [ ".$CPP" = "." ]; then
+    CPP="$CC -E"
+fi

nginx/auto/cc/conf

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+LINK="\$(CC)"
+
+MAIN_LINK=
+MODULE_LINK="-shared"
+
+ngx_include_opt="-I "
+ngx_compile_opt="-c"
+ngx_pic_opt="-fPIC"
+ngx_objout="-o "
+ngx_binout="-o "
+ngx_objext="o"
+ngx_binext=
+ngx_modext=".so"
+
+ngx_long_start=
+ngx_long_end=
+
+ngx_regex_dirsep="\/"
+ngx_dirsep='/'
+
+ngx_regex_cont=' \\\
+	'
+ngx_cont=' \
+	'
+ngx_tab=' \
+		'
+ngx_spacer=
+
+ngx_long_regex_cont=$ngx_regex_cont
+ngx_long_cont=$ngx_cont
+
+. auto/cc/name
+
+if test -n "$CFLAGS"; then
+
+    CC_TEST_FLAGS="$CFLAGS $NGX_CC_OPT"
+
+    case $NGX_CC_NAME in
+
+        ccc)
+            # Compaq C V6.5-207
+
+            ngx_include_opt="-I"
+        ;;
+
+        sunc)
+
+            MAIN_LINK=
+            MODULE_LINK="-G"
+
+            case "$NGX_MACHINE" in
+
+                i86pc)
+                    NGX_AUX=" src/os/unix/ngx_sunpro_x86.il"
+                ;;
+
+                sun4u | sun4v)
+                    NGX_AUX=" src/os/unix/ngx_sunpro_sparc64.il"
+                ;;
+
+            esac
+
+            case $CPU in
+
+                amd64)
+                    NGX_AUX=" src/os/unix/ngx_sunpro_amd64.il"
+                ;;
+
+            esac
+        ;;
+
+    esac
+
+else
+
+    case $NGX_CC_NAME in
+        gcc)
+            # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
+            #     3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2
+            #     4.0.0, 4.0.1, 4.1.0
+
+            . auto/cc/gcc
+        ;;
+
+        clang)
+            # Clang C compiler
+
+            . auto/cc/clang
+        ;;
+
+        icc)
+            # Intel C++ compiler 7.1, 8.0, 8.1
+
+            . auto/cc/icc
+        ;;
+
+        sunc)
+            # Sun C 5.7 Patch 117837-04 2005/05/11
+
+            . auto/cc/sunc
+        ;;
+
+        ccc)
+            # Compaq C V6.5-207
+
+            . auto/cc/ccc
+        ;;
+
+        acc)
+            # aCC: HP ANSI C++ B3910B A.03.55.02
+
+            . auto/cc/acc
+        ;;
+
+        msvc*)
+            # MSVC++ 6.0 SP2, MSVC++ Toolkit 2003
+
+            . auto/cc/msvc
+        ;;
+
+        owc)
+            # Open Watcom C 1.0, 1.2
+
+            . auto/cc/owc
+        ;;
+
+        bcc)
+            # Borland C++ 5.5
+
+            . auto/cc/bcc
+        ;;
+
+    esac
+
+    CC_TEST_FLAGS="$CC_TEST_FLAGS $NGX_CC_OPT"
+
+fi
+
+CFLAGS="$CFLAGS $NGX_CC_OPT"
+NGX_TEST_LD_OPT="$NGX_LD_OPT"
+
+if [ "$NGX_PLATFORM" != win32 ]; then
+
+    if test -n "$NGX_LD_OPT"; then
+        ngx_feature=--with-ld-opt=\"$NGX_LD_OPT\"
+        ngx_feature_name=
+        ngx_feature_run=no
+        ngx_feature_incs=
+        ngx_feature_path=
+        ngx_feature_libs=
+        ngx_feature_test=
+        . auto/feature
+
+        if [ $ngx_found = no ]; then
+            echo $0: error: the invalid value in --with-ld-opt=\"$NGX_LD_OPT\"
+            echo
+            exit 1
+        fi
+    fi
+
+
+    ngx_feature="-Wl,-E switch"
+    ngx_feature_name=
+    ngx_feature_run=no
+    ngx_feature_incs=
+    ngx_feature_path=
+    ngx_feature_libs=-Wl,-E
+    ngx_feature_test=
+    . auto/feature
+
+    if [ $ngx_found = yes ]; then
+        MAIN_LINK="-Wl,-E"
+    fi
+
+
+    if [ "$NGX_CC_NAME" = "sunc" ]; then
+        echo "checking for gcc builtin atomic operations ... disabled"
+    else
+        ngx_feature="gcc builtin atomic operations"
+        ngx_feature_name=NGX_HAVE_GCC_ATOMIC
+        ngx_feature_run=yes
+        ngx_feature_incs=
+        ngx_feature_path=
+        ngx_feature_libs=
+        ngx_feature_test="long  n = 0;
+                          if (!__sync_bool_compare_and_swap(&n, 0, 1))
+                              return 1;
+                          if (__sync_fetch_and_add(&n, 1) != 1)
+                              return 1;
+                          if (n != 2)
+                              return 1;
+                          __sync_synchronize();"
+        . auto/feature
+    fi
+
+
+    if [ "$NGX_CC_NAME" = "ccc" ]; then
+        echo "checking for C99 variadic macros ... disabled"
+    else
+        ngx_feature="C99 variadic macros"
+        ngx_feature_name="NGX_HAVE_C99_VARIADIC_MACROS"
+        ngx_feature_run=yes
+        ngx_feature_incs="#include <stdio.h>
+#define var(dummy, ...)  sprintf(__VA_ARGS__)"
+        ngx_feature_path=
+        ngx_feature_libs=
+        ngx_feature_test="char  buf[30]; buf[0] = '0';
+                          var(0, buf, \"%d\", 1);
+                          if (buf[0] != '1') return 1"
+        . auto/feature
+    fi
+
+
+    ngx_feature="gcc variadic macros"
+    ngx_feature_name="NGX_HAVE_GCC_VARIADIC_MACROS"
+    ngx_feature_run=yes
+    ngx_feature_incs="#include <stdio.h>
+#define var(dummy, args...)  sprintf(args)"
+    ngx_feature_path=
+    ngx_feature_libs=
+    ngx_feature_test="char  buf[30]; buf[0] = '0';
+                      var(0, buf, \"%d\", 1);
+                      if (buf[0] != '1') return 1"
+    . auto/feature
+
+
+    ngx_feature="gcc builtin 64 bit byteswap"
+    ngx_feature_name="NGX_HAVE_GCC_BSWAP64"
+    ngx_feature_run=no
+    ngx_feature_incs=
+    ngx_feature_path=
+    ngx_feature_libs=
+    ngx_feature_test="if (__builtin_bswap64(0)) return 1"
+    . auto/feature
+
+
+#    ngx_feature="inline"
+#    ngx_feature_name=
+#    ngx_feature_run=no
+#    ngx_feature_incs="int inline f(void) { return 1 }"
+#    ngx_feature_path=
+#    ngx_feature_libs=
+#    ngx_feature_test=
+#    . auto/feature
+#
+#    if [ $ngx_found = yes ]; then
+#    fi
+
+fi

nginx/auto/cc/gcc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
+#     3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2
+#     4.0.0, 4.0.1, 4.1.0
+
+
+NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \
+                         | sed -e 's/^.* version \(.*\)/\1/'`
+
+echo " + gcc version: $NGX_GCC_VER"
+
+have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define
+
+
+# Solaris 7's /usr/ccs/bin/as does not support "-pipe"
+
+CC_TEST_FLAGS="-pipe"
+
+ngx_feature="gcc -pipe switch"
+ngx_feature_name=
+ngx_feature_run=no
+ngx_feature_incs=
+ngx_feature_path=
+ngx_feature_libs=
+ngx_feature_test=
+. auto/feature
+
+CC_TEST_FLAGS=
+
+if [ $ngx_found = yes ]; then
+    PIPE="-pipe"
+fi
+
+
+case "$NGX_MACHINE" in
+
+    sun4u | sun4v | sparc | sparc64 )
+        # "-mcpu=v9" enables the "casa" assembler instruction
+        CFLAGS="$CFLAGS -mcpu=v9"
+    ;;
+
+esac
+
+
+# optimizations
+
+#NGX_GCC_OPT="-O2"
+#NGX_GCC_OPT="-Os"
+NGX_GCC_OPT="-O"
+
+#CFLAGS="$CFLAGS -fomit-frame-pointer"
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        CPU_OPT="-march=pentium"
+        NGX_CPU_CACHE_LINE=32
+    ;;
+
+    pentiumpro | pentium3)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        CPU_OPT="-march=pentiumpro"
+        NGX_CPU_CACHE_LINE=32
+    ;;
+
+    pentium4)
+        # optimize for Pentium 4, gcc 3.x
+        CPU_OPT="-march=pentium4"
+        NGX_CPU_CACHE_LINE=128
+    ;;
+
+    athlon)
+        # optimize for Athlon, gcc 3.x
+        CPU_OPT="-march=athlon"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    opteron)
+        # optimize for Opteron, gcc 3.x
+        CPU_OPT="-march=opteron"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    sparc32)
+        # build 32-bit UltraSparc binary
+        CPU_OPT="-m32"
+        CORE_LINK="$CORE_LINK -m32"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    sparc64)
+        # build 64-bit UltraSparc binary
+        CPU_OPT="-m64"
+        CORE_LINK="$CORE_LINK -m64"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    ppc64)
+        # build 64-bit PowerPC binary
+        CPU_OPT="-m64"
+        CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32"
+        CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32"
+        CORE_LINK="$CORE_LINK -m64"
+        NGX_CPU_CACHE_LINE=128
+    ;;
+
+esac
+
+CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
+
+case "$NGX_GCC_VER" in
+    2.7*)
+        # batch build
+        CPU_OPT=
+    ;;
+esac
+
+
+CFLAGS="$CFLAGS $PIPE $CPU_OPT"
+
+if [ ".$PCRE_OPT" = "." ]; then
+    PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
+else
+    PCRE_OPT="$PCRE_OPT $PIPE"
+fi
+
+if [ ".$ZLIB_OPT" = "." ]; then
+    ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
+else
+    ZLIB_OPT="$ZLIB_OPT $PIPE"
+fi
+
+
+# warnings
+
+# -W requires at least -O
+CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
+
+CFLAGS="$CFLAGS -Wall -Wpointer-arith"
+#CFLAGS="$CFLAGS -Wconversion"
+#CFLAGS="$CFLAGS -Winline"
+#CFLAGS="$CFLAGS -Wmissing-prototypes"
+
+case "$NGX_GCC_VER" in
+    2.*)
+        # we have a lot of the unused function arguments
+        CFLAGS="$CFLAGS -Wno-unused"
+    ;;
+
+    *)
+        # we have a lot of the unused function arguments
+        CFLAGS="$CFLAGS -Wno-unused-parameter"
+        # 4.2.1 shows the warning in wrong places
+        #CFLAGS="$CFLAGS -Wunreachable-code"
+
+        # deprecated system OpenSSL library on OS X
+        if [ "$NGX_SYSTEM" = "Darwin" ]; then
+            CFLAGS="$CFLAGS -Wno-deprecated-declarations"
+        fi
+    ;;
+esac
+
+
+# stop on warning
+CFLAGS="$CFLAGS -Werror"
+
+# debug
+CFLAGS="$CFLAGS -g"
+
+# DragonFly's gcc3 generates DWARF
+#CFLAGS="$CFLAGS -g -gstabs"
+
+if [ ".$CPP" = "." ]; then
+    CPP="$CC -E"
+fi

nginx/auto/cc/icc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# Intel C++ compiler 7.1, 8.0, 8.1, 9.0, 11.1
+
+NGX_ICC_VER=`$CC -V 2>&1 | grep 'Version' 2>&1 \
+                         | sed -e 's/^.* Version \([^ ]*\) *Build.*$/\1/'`
+
+echo " + icc version: $NGX_ICC_VER"
+
+have=NGX_COMPILER value="\"Intel C Compiler $NGX_ICC_VER\"" . auto/define
+
+
+# optimizations
+
+CFLAGS="$CFLAGS -O"
+
+CORE_LINK="$CORE_LINK -opt_report_file=$NGX_OBJS/opt_report_file"
+
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        CPU_OPT="-march=pentium"
+    ;;
+
+    pentiumpro)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        CPU_OPT="-mcpu=pentiumpro -march=pentiumpro"
+    ;;
+
+    pentium4)
+        # optimize for Pentium 4, default
+        CPU_OPT="-march=pentium4"
+    ;;
+esac
+
+CFLAGS="$CFLAGS $CPU_OPT"
+
+if [ ".$PCRE_OPT" = "." ]; then
+    PCRE_OPT="-O $CPU_OPT"
+fi
+
+if [ ".$ZLIB_OPT" = "." ]; then
+    ZLIB_OPT="-O $CPU_OPT"
+fi
+
+
+# warnings
+
+CFLAGS="$CFLAGS -w2"
+
+# disable some warnings
+
+# invalid type conversion: "int" to "char *"
+CFLAGS="$CFLAGS -wd171"
+# argument is incompatible with corresponding format string conversion
+CFLAGS="$CFLAGS -wd181"
+# zero used for undefined preprocessing identifier
+CFLAGS="$CFLAGS -wd193"
+# the format string ends before this argument
+CFLAGS="$CFLAGS -wd268"
+# invalid format string conversion
+CFLAGS="$CFLAGS -wd269"
+# conversion from "long long" to "size_t" may lose significant bits
+CFLAGS="$CFLAGS -wd810"
+# parameter was never referenced
+CFLAGS="$CFLAGS -wd869"
+# attribute "unused" is only allowed in a function definition, warning on pTHX_
+CFLAGS="$CFLAGS -wd1301"
+
+# STUB
+# enumerated type mixed with another type
+CFLAGS="$CFLAGS -wd188"
+# controlling expression is constant
+CFLAGS="$CFLAGS -wd279"
+# operands are evaluated in unspecified order
+CFLAGS="$CFLAGS -wd981"
+# external definition with no prior declaration
+CFLAGS="$CFLAGS -wd1418"
+# external declaration in primary source file
+CFLAGS="$CFLAGS -wd1419"
+
+case "$NGX_ICC_VER" in
+    9.*)
+        # "cc" clobber ignored, warnings for Linux's htonl()/htons()
+        CFLAGS="$CFLAGS -wd1469"
+        # explicit conversion of a 64-bit integral type to a smaller
+        # integral type
+        CFLAGS="$CFLAGS -wd1683"
+        # conversion from pointer to same-sized integral type,
+        # warning on offsetof()
+        CFLAGS="$CFLAGS -wd1684"
+        # floating-point equality and inequality comparisons are unreliable,
+        # warning on SvTRUE()
+        CFLAGS="$CFLAGS -wd1572"
+    ;;
+
+    8.*)
+        # "cc" clobber ignored, warnings for Linux's htonl()/htons()
+        CFLAGS="$CFLAGS -wd1469"
+        # floating-point equality and inequality comparisons are unreliable,
+        # warning on SvTRUE()
+        CFLAGS="$CFLAGS -wd1572"
+    ;;
+
+    *)
+    ;;
+esac
+
+# stop on warning
+CFLAGS="$CFLAGS -Werror"
+
+# debug
+CFLAGS="$CFLAGS -g"

nginx/auto/cc/msvc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# MSVC 6.0 SP2                            cl 12.00
+# MSVC Toolkit 2003 (7.1)                 cl 13.10
+# MSVC 2005 Express Edition SP1 (8.0)     cl 14.00
+# MSVC 2008 Express Edition (9.0)         cl 15.00
+# MSVC 2010 (10.0)                        cl 16.00
+# MSVC 2015 (14.0)                        cl 19.00
+
+
+NGX_MSVC_VER=`$NGX_WINE $CC 2>&1 | grep 'Compiler Version' 2>&1 \
+                                 | sed -e 's/^.* Version \(.*\)/\1/'`
+
+echo " + cl version: $NGX_MSVC_VER"
+
+have=NGX_COMPILER value="\"cl $NGX_MSVC_VER\"" . auto/define
+
+
+ngx_msvc_ver=`echo $NGX_MSVC_VER | sed -e 's/^\([0-9]*\).*/\1/'`
+
+
+# optimizations
+
+# maximize speed, equivalent to -Og -Oi -Ot -Oy -Ob2 -Gs -GF -Gy
+CFLAGS="$CFLAGS -O2"
+
+# enable global optimization
+#CFLAGS="$CFLAGS -Og"
+# enable intrinsic functions
+#CFLAGS="$CFLAGS -Oi"
+
+# disable inline expansion
+#CFLAGS="$CFLAGS -Ob0"
+# explicit inline expansion
+#CFLAGS="$CFLAGS -Ob1"
+# explicit and implicit inline expansion
+#CFLAGS="$CFLAGS -Ob2"
+
+# enable frame pointer omission
+#CFLAGS="$CFLAGS -Oy"
+# disable stack checking calls
+#CFLAGS="$CFLAGS -Gs"
+
+# pools strings as read/write
+#CFLAGS="$CFLAGS -Gf"
+# pools strings as read-only
+#CFLAGS="$CFLAGS -GF"
+
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        CPU_OPT="-G5"
+    ;;
+
+    pentiumpro)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        CPU_OPT="-G6"
+    ;;
+
+    pentium4)
+        # optimize for Pentium 4, MSVC 7
+        CPU_OPT="-G7"
+    ;;
+esac
+
+# __cdecl, default, must be used with OpenSSL, md5 asm, and sha1 asm
+#CPU_OPT="$CPU_OPT -Gd"
+# __stdcall
+#CPU_OPT="$CPU_OPT -Gz"
+# __fastcall
+#CPU_OPT="$CPU_OPT -Gr"
+
+
+CFLAGS="$CFLAGS $CPU_OPT"
+
+
+# warnings
+
+CFLAGS="$CFLAGS -W4"
+
+# stop on warning
+CFLAGS="$CFLAGS -WX"
+
+# disable logo
+CFLAGS="$CFLAGS -nologo"
+
+# the link flags
+CORE_LINK="$CORE_LINK -link -verbose:lib"
+
+# link with libcmt.lib, multithreaded
+LIBC="-MT"
+# link with msvcrt.dll
+# however, MSVC Toolkit 2003 has no MSVCRT.LIB
+#LIBC="-MD"
+
+CFLAGS="$CFLAGS $LIBC"
+
+CORE_LIBS="$CORE_LIBS kernel32.lib user32.lib"
+
+# Win32 GUI mode application
+#CORE_LINK="$CORE_LINK -subsystem:windows -entry:mainCRTStartup"
+
+# debug
+# msvc under Wine issues
+# C1902: Program database manager mismatch; please check your installation
+if [ -z "$NGX_WINE" ]; then
+   CFLAGS="$CFLAGS -Zi -Fd$NGX_OBJS/nginx.pdb"
+   CORE_LINK="$CORE_LINK -debug"
+fi
+
+
+# MSVC 2005 supports C99 variadic macros
+if [ "$ngx_msvc_ver" -ge 14 ]; then
+    have=NGX_HAVE_C99_VARIADIC_MACROS . auto/have
+fi
+
+
+# precompiled headers
+CORE_DEPS="$CORE_DEPS $NGX_OBJS/ngx_config.pch"
+CORE_LINK="$CORE_LINK $NGX_OBJS/ngx_pch.obj"
+NGX_PCH="$NGX_OBJS/ngx_config.pch"
+NGX_BUILD_PCH="-Ycngx_config.h -Fp$NGX_OBJS/ngx_config.pch"
+NGX_USE_PCH="-Yungx_config.h -Fp$NGX_OBJS/ngx_config.pch"
+
+
+# the resource file
+NGX_RES="$NGX_OBJS/nginx.res"
+NGX_RCC="rc -fo$NGX_RES \$(CORE_INCS) $NGX_WIN32_RC"
+CORE_LINK="$NGX_RES $CORE_LINK"
+
+
+# dynamic modules
+#MAIN_LINK="-link -def:$NGX_OBJS/nginx.def"
+#MODULE_LINK="-LD $NGX_OBJS/nginx.lib"
+
+
+ngx_pic_opt=
+ngx_objout="-Fo"
+ngx_binout="-Fe"
+ngx_objext="obj"
+
+ngx_long_start='@<<
+	'
+ngx_long_end='<<'
+ngx_long_regex_cont=' \
+	'
+ngx_long_cont='
+	'
+
+# MSVC understand / in path
+#ngx_regex_dirsep='\\'
+#ngx_dirsep="\\"

nginx/auto/cc/name

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+if [ "$NGX_PLATFORM" != win32 ]; then
+
+    ngx_feature="C compiler"
+    ngx_feature_name=
+    ngx_feature_run=yes
+    ngx_feature_incs=
+    ngx_feature_path=
+    ngx_feature_libs=
+    ngx_feature_test=
+    . auto/feature
+
+    if [ $ngx_found = no ]; then
+        echo
+        echo $0: error: C compiler $CC is not found
+        echo
+        exit 1
+    fi
+
+fi
+
+
+if [ "$CC" = cl ]; then
+    NGX_CC_NAME=msvc
+    echo " + using Microsoft Visual C++ compiler"
+
+elif [ "$CC" = wcl386 ]; then
+    NGX_CC_NAME=owc
+    echo " + using Open Watcom C compiler"
+
+elif [ "$CC" = bcc32 ]; then
+    NGX_CC_NAME=bcc
+    echo " + using Borland C++ compiler"
+
+elif `$CC -V 2>&1 | grep '^Intel(R) C' >/dev/null 2>&1`; then
+    NGX_CC_NAME=icc
+    echo " + using Intel C++ compiler"
+
+elif `$CC -v 2>&1 | grep 'gcc version' >/dev/null 2>&1`; then
+    NGX_CC_NAME=gcc
+    echo " + using GNU C compiler"
+
+elif `$CC -v 2>&1 | grep 'clang version' >/dev/null 2>&1`; then
+    NGX_CC_NAME=clang
+    echo " + using Clang C compiler"
+
+elif `$CC -v 2>&1 | grep 'LLVM version' >/dev/null 2>&1`; then
+    NGX_CC_NAME=clang
+    echo " + using Clang C compiler"
+
+elif `$CC -V 2>&1 | grep 'Sun C' >/dev/null 2>&1`; then
+    NGX_CC_NAME=sunc
+    echo " + using Sun C compiler"
+
+elif `$CC -V 2>&1 | grep '^Compaq C' >/dev/null 2>&1`; then
+    NGX_CC_NAME=ccc
+    echo " + using Compaq C compiler"
+
+elif `$CC -V 2>&1 | grep '^aCC: ' >/dev/null 2>&1`; then
+    NGX_CC_NAME=acc
+    echo " + using HP aC++ compiler"
+
+else
+    NGX_CC_NAME=unknown
+
+fi

nginx/auto/cc/owc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# Open Watcom C 1.0, 1.2, 1.3
+
+# optimizations
+
+# maximize speed
+CFLAGS="$CFLAGS -ot"
+# reorder instructions for best pipeline usage
+CFLAGS="$CFLAGS -op"
+# inline intrinsic functions
+CFLAGS="$CFLAGS -oi"
+# inline expansion
+CFLAGS="$CFLAGS -oe"
+# disable stack checking calls
+CFLAGS="$CFLAGS -s"
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        # register-based arguments passing conventions
+        CPU_OPT="-5r"
+        # stack-based arguments passing conventions
+        #CPU_OPT="-5s"
+    ;;
+
+    pentiumpro)
+        # optimize for Pentium Pro, Pentium II and Pentium III
+        # register-based arguments passing conventions
+        CPU_OPT="-6r"
+        # stack-based arguments passing conventions
+        #CPU_OPT="-6s"
+    ;;
+esac
+
+CFLAGS="$CFLAGS $CPU_OPT"
+
+
+# warnings
+
+# maximum level
+CFLAGS="$CFLAGS -wx"
+#CFLAGS="$CFLAGS -w3"
+
+# stop on warning
+CFLAGS="$CFLAGS -we"
+
+# built target is NT
+CFLAGS="$CFLAGS -bt=nt"
+
+# multithreaded
+CFLAGS="$CFLAGS -bm"
+
+# debug
+CFLAGS="$CFLAGS -d2"
+
+# quiet
+CFLAGS="$CFLAGS -zq"
+
+# Open Watcom C 1.2
+have=NGX_HAVE_C99_VARIADIC_MACROS . auto/have
+
+
+# the precompiled headers
+#CORE_DEPS="$CORE_DEPS $NGX_OBJS/ngx_config.pch"
+#NGX_PCH="$NGX_OBJS/ngx_config.pch"
+#NGX_BUILD_PCH="-fhq=$NGX_OBJS/ngx_config.pch"
+#NGX_USE_PCH="-fh=$NGX_OBJS/ngx_config.pch"
+
+
+# the link flags, built target is NT GUI mode application
+#CORE_LINK="$CORE_LINK -l=nt_win"
+
+
+# the resource file
+NGX_RCC="wrc \$(CORE_INCS) -fo=$NGX_OBJS/nginx.res "
+NGX_RCC="$NGX_RCC $NGX_WIN32_RC $NGX_OBJS/nginx.exe"
+
+
+ngx_include_opt="-i="
+ngx_objout="-fo"
+ngx_binout="-fe="
+ngx_objext="obj"
+
+ngx_regex_dirsep='\\'
+ngx_dirsep="\\"
+
+ngx_long_start=' '
+ngx_long_end=' '
+ngx_long_regex_cont=' \&\
+	'
+ngx_long_cont=' &
+	'
+
+ngx_regex_cont=' \&\
+	'
+ngx_cont=' &
+	'
+ngx_tab=' &
+		'

nginx/auto/cc/sunc

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+# Sun C 5.7 Patch 117837-04 2005/05/11    Sun Studio 10
+# Sun C 5.8 2005/10/13                    Sun Studio 11
+# Sun C 5.9 SunOS_i386 2007/05/03         Sun Studio 12
+# Sun C 5.9 SunOS_sparc 2007/05/03
+# Sun C 5.10 SunOS_i386 2009/06/03        Sun Studio 12.1
+# Sun C 5.11 SunOS_i386 2010/08/13        Oracle Solaris Studio 12.2
+# Sun C 5.12 SunOS_i386 2011/11/16        Oracle Solaris Studio 12.3
+# Sun C 5.13 SunOS_i386 2014/10/20        Oracle Solaris Studio 12.4
+# Sun C 5.14 SunOS_i386 2016/05/31        Oracle Developer Studio 12.5
+
+NGX_SUNC_VER=`$CC -V 2>&1 | grep 'Sun C' 2>&1 \
+                          | sed -e 's/^.* Sun C \(.*\)/\1/'`
+
+echo " + Sun C version: $NGX_SUNC_VER"
+
+have=NGX_COMPILER value="\"Sun C $NGX_SUNC_VER\"" . auto/define
+
+
+cat << END > $NGX_AUTOTEST.c
+
+int main(void) {
+    printf("%d", __SUNPRO_C);
+    return 0;
+}
+
+END
+
+eval "$CC -o $NGX_AUTOTEST $NGX_AUTOTEST.c >> $NGX_ERR 2>&1"
+
+if [ -x $NGX_AUTOTEST ]; then
+    ngx_sunc_ver=`$NGX_AUTOTEST`
+fi
+
+rm -rf $NGX_AUTOTEST*
+
+# 1424 == 0x590, Sun Studio 12
+
+if [ "$ngx_sunc_ver" -ge 1424 ]; then
+    ngx_sparc32="-m32"
+    ngx_sparc64="-m64"
+    ngx_amd64="-m64"
+
+else
+    ngx_sparc32="-xarch=v8plus"
+    ngx_sparc64="-xarch=v9"
+    ngx_amd64="-xarch=amd64"
+fi
+
+case "$NGX_MACHINE" in
+
+    i86pc)
+        NGX_AUX=" src/os/unix/ngx_sunpro_x86.il"
+    ;;
+
+    sun4u | sun4v)
+        NGX_AUX=" src/os/unix/ngx_sunpro_sparc64.il"
+    ;;
+
+esac
+
+MAIN_LINK=
+MODULE_LINK="-G"
+
+
+# optimizations
+
+# 20736 == 0x5100, Sun Studio 12.1
+
+if [ "$ngx_sunc_ver" -ge 20736 ]; then
+    ngx_fast="-fast"
+
+else
+    # older versions had problems with bit-fields
+    ngx_fast="-fast -xalias_level=any"
+fi
+
+IPO=-xipo
+CFLAGS="$CFLAGS $ngx_fast $IPO"
+CORE_LINK="$CORE_LINK $ngx_fast $IPO"
+
+
+case $CPU in
+    pentium)
+        # optimize for Pentium and Athlon
+        CPU_OPT="-xchip=pentium"
+    ;;
+
+    pentiumpro)
+        # optimize for Pentium Pro, Pentium II
+        CPU_OPT="-xchip=pentium_pro"
+    ;;
+
+    pentium3)
+        # optimize for Pentium III
+        CPU_OPT="-xchip=pentium3"
+        #CPU_OPT="$CPU_OPT -xarch=sse"
+        CPU_OPT="$CPU_OPT -xcache=16/32/4:256/32/4"
+    ;;
+
+    pentium4)
+        # optimize for Pentium 4
+        CPU_OPT="-xchip=pentium4"
+        #CPU_OPT="$CPU_OPT -xarch=sse2"
+        CPU_OPT="$CPU_OPT -xcache=8/64/4:256/128/8"
+    ;;
+
+    opteron)
+        # optimize for Opteron
+        CPU_OPT="-xchip=opteron"
+        #CPU_OPT="$CPU_OPT -xarch=sse2"
+        CPU_OPT="$CPU_OPT -xcache=64/64/2:1024/64/16"
+    ;;
+
+    sparc32)
+        # build 32-bit UltraSparc binary
+        CPU_OPT="$ngx_sparc32"
+        CORE_LINK="$CORE_LINK $ngx_sparc32"
+        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_sparc32"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    sparc64)
+        # build 64-bit UltraSparc binary
+        CPU_OPT="$ngx_sparc64"
+        CORE_LINK="$CORE_LINK $ngx_sparc64"
+        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_sparc64"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+    amd64)
+        # build 64-bit amd64 binary
+        CPU_OPT="$ngx_amd64"
+        CORE_LINK="$CORE_LINK $ngx_amd64"
+        CC_AUX_FLAGS="$CC_AUX_FLAGS $ngx_amd64"
+        NGX_AUX=" src/os/unix/ngx_sunpro_amd64.il"
+        NGX_CPU_CACHE_LINE=64
+    ;;
+
+esac
+
+
+CFLAGS="$CFLAGS $CPU_OPT"
+
+
+if [ ".$PCRE_OPT" = "." ]; then
+    PCRE_OPT="$ngx_fast $IPO $CPU_OPT"
+fi
+
+if [ ".$ZLIB_OPT" = "." ]; then
+    ZLIB_OPT="$ngx_fast $IPO $CPU_OPT"
+fi
+
+
+# stop on warning
+CFLAGS="$CFLAGS -errwarn=%all"
+
+# debug
+CFLAGS="$CFLAGS -g"

nginx/auto/configure

+#!/bin/sh
+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+LC_ALL=C
+export LC_ALL
+
+. auto/options
+. auto/init
+. auto/sources
+
+test -d $NGX_OBJS || mkdir -p $NGX_OBJS
+
+echo > $NGX_AUTO_HEADERS_H
+echo > $NGX_AUTOCONF_ERR
+
+echo "#define NGX_CONFIGURE \"$NGX_CONFIGURE\"" > $NGX_AUTO_CONFIG_H
+
+
+if [ $NGX_DEBUG = YES ]; then
+    have=NGX_DEBUG . auto/have
+fi
+
+
+if test -z "$NGX_PLATFORM"; then
+    echo "checking for OS"
+
+    NGX_SYSTEM=`uname -s 2>/dev/null`
+    NGX_RELEASE=`uname -r 2>/dev/null`
+    NGX_MACHINE=`uname -m 2>/dev/null`
+
+    echo " + $NGX_SYSTEM $NGX_RELEASE $NGX_MACHINE"
+
+    NGX_PLATFORM="$NGX_SYSTEM:$NGX_RELEASE:$NGX_MACHINE";
+
+    case "$NGX_SYSTEM" in
+        MINGW32_* | MINGW64_* | MSYS_*)
+            NGX_PLATFORM=win32
+        ;;
+    esac
+
+else
+    echo "building for $NGX_PLATFORM"
+    NGX_SYSTEM=$NGX_PLATFORM
+fi
+
+. auto/cc/conf
+
+if [ "$NGX_PLATFORM" != win32 ]; then
+    . auto/headers
+fi
+
+. auto/os/conf
+
+if [ "$NGX_PLATFORM" != win32 ]; then
+    . auto/unix
+fi
+
+. auto/threads
+. auto/modules
+. auto/lib/conf
+
+case ".$NGX_PREFIX" in
+    .)
+        NGX_PREFIX=${NGX_PREFIX:-/usr/local/nginx}
+        have=NGX_PREFIX value="\"$NGX_PREFIX/\"" . auto/define
+    ;;
+
+    .!)
+        NGX_PREFIX=
+    ;;
+
+    *)
+        have=NGX_PREFIX value="\"$NGX_PREFIX/\"" . auto/define
+    ;;
+esac
+
+if [ ".$NGX_CONF_PREFIX" != "." ]; then
+    have=NGX_CONF_PREFIX value="\"$NGX_CONF_PREFIX/\"" . auto/define
+fi
+
+have=NGX_SBIN_PATH value="\"$NGX_SBIN_PATH\"" . auto/define
+have=NGX_CONF_PATH value="\"$NGX_CONF_PATH\"" . auto/define
+have=NGX_PID_PATH value="\"$NGX_PID_PATH\"" . auto/define
+have=NGX_LOCK_PATH value="\"$NGX_LOCK_PATH\"" . auto/define
+have=NGX_ERROR_LOG_PATH value="\"$NGX_ERROR_LOG_PATH\"" . auto/define
+
+if [ ".$NGX_ERROR_LOG_PATH" = "." ]; then
+    have=NGX_ERROR_LOG_STDERR . auto/have
+fi
+
+have=NGX_HTTP_LOG_PATH value="\"$NGX_HTTP_LOG_PATH\"" . auto/define
+have=NGX_HTTP_CLIENT_TEMP_PATH value="\"$NGX_HTTP_CLIENT_TEMP_PATH\""
+. auto/define
+have=NGX_HTTP_PROXY_TEMP_PATH value="\"$NGX_HTTP_PROXY_TEMP_PATH\""
+. auto/define
+have=NGX_HTTP_FASTCGI_TEMP_PATH value="\"$NGX_HTTP_FASTCGI_TEMP_PATH\""
+. auto/define
+have=NGX_HTTP_UWSGI_TEMP_PATH value="\"$NGX_HTTP_UWSGI_TEMP_PATH\""
+. auto/define
+have=NGX_HTTP_SCGI_TEMP_PATH value="\"$NGX_HTTP_SCGI_TEMP_PATH\""
+. auto/define
+
+. auto/make
+. auto/lib/make
+. auto/install
+
+# STUB
+. auto/stubs
+
+have=NGX_USER value="\"$NGX_USER\"" . auto/define
+have=NGX_GROUP value="\"$NGX_GROUP\"" . auto/define
+
+if [ ".$NGX_BUILD" != "." ]; then
+    have=NGX_BUILD value="\"$NGX_BUILD\"" . auto/define
+fi
+
+. auto/summary

nginx/auto/define

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+cat << END >> $NGX_AUTO_CONFIG_H
+
+#ifndef $have
+#define $have  $value
+#endif
+
+END

nginx/auto/endianness

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+echo $ngx_n "checking for system byte ordering ...$ngx_c"
+
+cat << END >> $NGX_AUTOCONF_ERR
+
+----------------------------------------
+checking for system byte ordering
+
+END
+
+
+cat << END > $NGX_AUTOTEST.c
+
+int main(void) {
+    int i = 0x11223344;
+    char *p;
+
+    p = (char *) &i;
+    if (*p == 0x44) return 0;
+    return 1;
+}
+
+END
+
+ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \
+          -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs"
+
+eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1"
+
+if [ -x $NGX_AUTOTEST ]; then
+    if $NGX_AUTOTEST >/dev/null 2>&1; then
+        echo " little endian"
+        have=NGX_HAVE_LITTLE_ENDIAN . auto/have
+    else
+        echo " big endian"
+    fi
+
+    rm -rf $NGX_AUTOTEST*
+
+else
+    rm -rf $NGX_AUTOTEST*
+
+    echo
+    echo "$0: error: cannot detect system byte ordering"
+    exit 1
+fi

nginx/auto/feature

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+echo $ngx_n "checking for $ngx_feature ...$ngx_c"
+
+cat << END >> $NGX_AUTOCONF_ERR
+
+----------------------------------------
+checking for $ngx_feature
+
+END
+
+ngx_found=no
+
+if test -n "$ngx_feature_name"; then
+    ngx_have_feature=`echo $ngx_feature_name \
+                   | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
+fi
+
+if test -n "$ngx_feature_path"; then
+    for ngx_temp in $ngx_feature_path; do
+        ngx_feature_inc_path="$ngx_feature_inc_path -I $ngx_temp"
+    done
+fi
+
+cat << END > $NGX_AUTOTEST.c
+
+#include <sys/types.h>
+$NGX_INCLUDE_UNISTD_H
+$ngx_feature_incs
+
+int main(void) {
+    $ngx_feature_test;
+    return 0;
+}
+
+END
+
+
+ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS $ngx_feature_inc_path \
+          -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_TEST_LD_OPT $ngx_feature_libs"
+
+ngx_feature_inc_path=
+
+eval "/bin/sh -c \"$ngx_test\" >> $NGX_AUTOCONF_ERR 2>&1"
+
+
+if [ -x $NGX_AUTOTEST ]; then
+
+    case "$ngx_feature_run" in
+
+        yes)
+            # /bin/sh is used to intercept "Killed" or "Abort trap" messages
+            if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then
+                echo " found"
+                ngx_found=yes
+
+                if test -n "$ngx_feature_name"; then
+                    have=$ngx_have_feature . auto/have
+                fi
+
+            else
+                echo " found but is not working"
+            fi
+        ;;
+
+        value)
+            # /bin/sh is used to intercept "Killed" or "Abort trap" messages
+            if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then
+                echo " found"
+                ngx_found=yes
+
+                cat << END >> $NGX_AUTO_CONFIG_H
+
+#ifndef $ngx_feature_name
+#define $ngx_feature_name  `$NGX_AUTOTEST`
+#endif
+
+END
+            else
+                echo " found but is not working"
+            fi
+        ;;
+
+        bug)
+            # /bin/sh is used to intercept "Killed" or "Abort trap" messages
+            if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then
+                echo " not found"
+
+            else
+                echo " found"
+                ngx_found=yes
+
+                if test -n "$ngx_feature_name"; then
+                    have=$ngx_have_feature . auto/have
+                fi
+            fi
+        ;;
+
+        *)
+            echo " found"
+            ngx_found=yes
+
+            if test -n "$ngx_feature_name"; then
+                have=$ngx_have_feature . auto/have
+            fi
+        ;;
+
+    esac
+
+else
+    echo " not found"
+
+    echo "----------"    >> $NGX_AUTOCONF_ERR
+    cat $NGX_AUTOTEST.c  >> $NGX_AUTOCONF_ERR
+    echo "----------"    >> $NGX_AUTOCONF_ERR
+    echo $ngx_test       >> $NGX_AUTOCONF_ERR
+    echo "----------"    >> $NGX_AUTOCONF_ERR
+fi
+
+rm -rf $NGX_AUTOTEST*

nginx/auto/have

+
+# Copyright (C) Igor Sysoev
+# Copyright (C) Nginx, Inc.
+
+
+cat << END >> $NGX_AUTO_CONFIG_H
+
+#ifndef $have
+#define $have  1
+#endif
+
+END