|  | 
 |  | 
 | dnl CURL_CHECK_DEF (SYMBOL, [INCLUDES], [SILENT]) | 
 | dnl ------------------------------------------------- | 
 | dnl Use the C preprocessor to find out if the given object-style symbol | 
 | dnl is defined and get its expansion. This macro will not use default | 
 | dnl includes even if no INCLUDES argument is given. This macro will run | 
 | dnl silently when invoked with three arguments. If the expansion would | 
 | dnl result in a set of double-quoted strings the returned expansion will | 
 | dnl actually be a single double-quoted string concatenating all them. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_DEF], [ | 
 |   AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl | 
 |   AS_VAR_PUSHDEF([ac_Def], [curl_cv_def_$1])dnl | 
 |   if test -z "$SED"; then | 
 |     AC_MSG_ERROR([SED not set. Cannot continue without SED being set.]) | 
 |   fi | 
 |   if test -z "$GREP"; then | 
 |     AC_MSG_ERROR([GREP not set. Cannot continue without GREP being set.]) | 
 |   fi | 
 |   ifelse($3,,[AC_MSG_CHECKING([for preprocessor definition of $1])]) | 
 |   tmp_exp="" | 
 |   AC_PREPROC_IFELSE([ | 
 |     AC_LANG_SOURCE( | 
 | ifelse($2,,,[$2])[[ | 
 | #ifdef $1 | 
 | CURL_DEF_TOKEN $1 | 
 | #endif | 
 |     ]]) | 
 |   ],[ | 
 |     tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \ | 
 |       "$GREP" CURL_DEF_TOKEN 2>/dev/null | \ | 
 |       "$SED" 's/.*CURL_DEF_TOKEN[[ ]][[ ]]*//' 2>/dev/null | \ | 
 |       "$SED" 's/[["]][[ ]]*[["]]//g' 2>/dev/null` | 
 |     if test -z "$tmp_exp" || test "$tmp_exp" = "$1"; then | 
 |       tmp_exp="" | 
 |     fi | 
 |   ]) | 
 |   if test -z "$tmp_exp"; then | 
 |     AS_VAR_SET(ac_HaveDef, no) | 
 |     ifelse($3,,[AC_MSG_RESULT([no])]) | 
 |   else | 
 |     AS_VAR_SET(ac_HaveDef, yes) | 
 |     AS_VAR_SET(ac_Def, $tmp_exp) | 
 |     ifelse($3,,[AC_MSG_RESULT([$tmp_exp])]) | 
 |   fi | 
 |   AS_VAR_POPDEF([ac_Def])dnl | 
 |   AS_VAR_POPDEF([ac_HaveDef])dnl | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_DEF_CC (SYMBOL, [INCLUDES], [SILENT]) | 
 | dnl ------------------------------------------------- | 
 | dnl Use the C compiler to find out only if the given symbol is defined | 
 | dnl or not, this can not find out its expansion. This macro will not use | 
 | dnl default includes even if no INCLUDES argument is given. This macro | 
 | dnl will run silently when invoked with three arguments. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_DEF_CC], [ | 
 |   AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl | 
 |   ifelse($3,,[AC_MSG_CHECKING([for compiler definition of $1])]) | 
 |   AC_COMPILE_IFELSE([ | 
 |     AC_LANG_SOURCE( | 
 | ifelse($2,,,[$2])[[ | 
 | int main (void) | 
 | { | 
 | #ifdef $1 | 
 |   return 0; | 
 | #else | 
 |   force compilation error | 
 | #endif | 
 | } | 
 |     ]]) | 
 |   ],[ | 
 |     tst_symbol_defined="yes" | 
 |   ],[ | 
 |     tst_symbol_defined="no" | 
 |   ]) | 
 |   if test "$tst_symbol_defined" = "yes"; then | 
 |     AS_VAR_SET(ac_HaveDef, yes) | 
 |     ifelse($3,,[AC_MSG_RESULT([yes])]) | 
 |   else | 
 |     AS_VAR_SET(ac_HaveDef, no) | 
 |     ifelse($3,,[AC_MSG_RESULT([no])]) | 
 |   fi | 
 |   AS_VAR_POPDEF([ac_HaveDef])dnl | 
 | ]) | 
 |  | 
 |  | 
 | dnl CARES_CHECK_LIB_XNET | 
 | dnl ------------------------------------------------- | 
 | dnl Verify if X/Open network library is required. | 
 |  | 
 | AC_DEFUN([CARES_CHECK_LIB_XNET], [ | 
 |   AC_MSG_CHECKING([if X/Open network library is required]) | 
 |   tst_lib_xnet_required="no" | 
 |   AC_COMPILE_IFELSE([ | 
 |     AC_LANG_SOURCE([[ | 
 | int main (void) | 
 | { | 
 | #if defined(__hpux) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600) | 
 |   return 0; | 
 | #elif defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED) | 
 |   return 0; | 
 | #else | 
 |   force compilation error | 
 | #endif | 
 | } | 
 |     ]]) | 
 |   ],[ | 
 |     tst_lib_xnet_required="yes" | 
 |     LIBS="$LIBS -lxnet" | 
 |   ]) | 
 |   AC_MSG_RESULT([$tst_lib_xnet_required]) | 
 | ]) | 
 |  | 
 |  | 
 | dnl CARES_CHECK_AIX_ALL_SOURCE | 
 | dnl ------------------------------------------------- | 
 | dnl Provides a replacement of traditional AC_AIX with | 
 | dnl an uniform behaviour across all autoconf versions, | 
 | dnl and with our own placement rules. | 
 |  | 
 | AC_DEFUN([CARES_CHECK_AIX_ALL_SOURCE], [ | 
 |   AH_VERBATIM([_ALL_SOURCE], | 
 |     [/* Define to 1 if OS is AIX. */ | 
 | #ifndef _ALL_SOURCE | 
 | #  undef _ALL_SOURCE | 
 | #endif]) | 
 |   AC_BEFORE([$0], [AC_SYS_LARGEFILE])dnl | 
 |   AC_BEFORE([$0], [CARES_CONFIGURE_REENTRANT])dnl | 
 |   AC_MSG_CHECKING([if OS is AIX (to define _ALL_SOURCE)]) | 
 |   AC_EGREP_CPP([yes_this_is_aix],[ | 
 | #ifdef _AIX | 
 |    yes_this_is_aix | 
 | #endif | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     AC_DEFINE(_ALL_SOURCE) | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |   ]) | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_WINDOWS | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid windows.h header | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_WINDOWS], [ | 
 |   AC_CACHE_CHECK([for windows.h], [ac_cv_header_windows_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 |       ]],[[ | 
 | #if defined(__CYGWIN__) || defined(__CEGCC__) | 
 |         HAVE_WINDOWS_H shall not be defined. | 
 | #else | 
 |         int dummy=2*WINVER; | 
 | #endif | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_windows_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_windows_h="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_header_windows_h" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_WINDOWS_H, 1, | 
 |         [Define to 1 if you have the windows.h header file.]) | 
 |       AC_DEFINE_UNQUOTED(WIN32_LEAN_AND_MEAN, 1, | 
 |         [Define to avoid automatic inclusion of winsock.h]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_NATIVE_WINDOWS | 
 | dnl ------------------------------------------------- | 
 | dnl Check if building a native Windows target | 
 |  | 
 | AC_DEFUN([CURL_CHECK_NATIVE_WINDOWS], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl | 
 |   AC_CACHE_CHECK([whether build target is a native Windows one], [ac_cv_native_windows], [ | 
 |     if test "$ac_cv_header_windows_h" = "no"; then | 
 |       ac_cv_native_windows="no" | 
 |     else | 
 |       AC_COMPILE_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 |         ]],[[ | 
 | #if defined(__MINGW32__) || defined(__MINGW32CE__) || \ | 
 |    (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))) | 
 |           int dummy=1; | 
 | #else | 
 |           Not a native Windows build target. | 
 | #endif | 
 |         ]]) | 
 |       ],[ | 
 |         ac_cv_native_windows="yes" | 
 |       ],[ | 
 |         ac_cv_native_windows="no" | 
 |       ]) | 
 |     fi | 
 |   ]) | 
 |   AM_CONDITIONAL(DOING_NATIVE_WINDOWS, test "x$ac_cv_native_windows" = xyes) | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_WINSOCK | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid winsock.h header | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_WINSOCK], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl | 
 |   AC_CACHE_CHECK([for winsock.h], [ac_cv_header_winsock_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #include <winsock.h> | 
 |       ]],[[ | 
 | #if defined(__CYGWIN__) || defined(__CEGCC__) | 
 |         HAVE_WINSOCK_H shall not be defined. | 
 | #else | 
 |         int dummy=WSACleanup(); | 
 | #endif | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_winsock_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_winsock_h="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_header_winsock_h" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_WINSOCK_H, 1, | 
 |         [Define to 1 if you have the winsock.h header file.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_WINSOCK2 | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid winsock2.h header | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_WINSOCK2], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl | 
 |   AC_CACHE_CHECK([for winsock2.h], [ac_cv_header_winsock2_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #include <winsock2.h> | 
 |       ]],[[ | 
 | #if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__) | 
 |         HAVE_WINSOCK2_H shall not be defined. | 
 | #else | 
 |         int dummy=2*IPPROTO_ESP; | 
 | #endif | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_winsock2_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_winsock2_h="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_header_winsock2_h" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_WINSOCK2_H, 1, | 
 |         [Define to 1 if you have the winsock2.h header file.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_WS2TCPIP | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid ws2tcpip.h header | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_WS2TCPIP], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl | 
 |   AC_CACHE_CHECK([for ws2tcpip.h], [ac_cv_header_ws2tcpip_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #include <winsock2.h> | 
 | #include <ws2tcpip.h> | 
 |       ]],[[ | 
 | #if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__) | 
 |         HAVE_WS2TCPIP_H shall not be defined. | 
 | #else | 
 |         int dummy=2*IP_PKTINFO; | 
 | #endif | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_ws2tcpip_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_ws2tcpip_h="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_header_ws2tcpip_h" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_WS2TCPIP_H, 1, | 
 |         [Define to 1 if you have the ws2tcpip.h header file.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_MALLOC | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid malloc.h header, | 
 | dnl and check if it is needed even with stdlib.h | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_MALLOC], [ | 
 |   AC_CACHE_CHECK([for malloc.h], [ac_cv_header_malloc_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #include <malloc.h> | 
 |       ]],[[ | 
 |         void *p = malloc(10); | 
 |         void *q = calloc(10,10); | 
 |         free(p); | 
 |         free(q); | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_malloc_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_malloc_h="no" | 
 |     ]) | 
 |   ]) | 
 |   if test "$ac_cv_header_malloc_h" = "yes"; then | 
 |     AC_DEFINE_UNQUOTED(HAVE_MALLOC_H, 1, | 
 |       [Define to 1 if you have the malloc.h header file.]) | 
 |     # | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #include <stdlib.h> | 
 |       ]],[[ | 
 |         void *p = malloc(10); | 
 |         void *q = calloc(10,10); | 
 |         free(p); | 
 |         free(q); | 
 |       ]]) | 
 |     ],[ | 
 |       curl_cv_need_header_malloc_h="no" | 
 |     ],[ | 
 |       curl_cv_need_header_malloc_h="yes" | 
 |     ]) | 
 |     # | 
 |     case "$curl_cv_need_header_malloc_h" in | 
 |       yes) | 
 |         AC_DEFINE_UNQUOTED(NEED_MALLOC_H, 1, | 
 |           [Define to 1 if you need the malloc.h header file even with stdlib.h]) | 
 |         ;; | 
 |     esac | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_HEADER_MEMORY | 
 | dnl ------------------------------------------------- | 
 | dnl Check for compilable and valid memory.h header, | 
 | dnl and check if it is needed even with stdlib.h for | 
 | dnl memory related functions. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_HEADER_MEMORY], [ | 
 |   AC_CACHE_CHECK([for memory.h], [ac_cv_header_memory_h], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #include <memory.h> | 
 |       ]],[[ | 
 |         void *p = malloc(10); | 
 |         void *q = calloc(10,10); | 
 |         free(p); | 
 |         free(q); | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_header_memory_h="yes" | 
 |     ],[ | 
 |       ac_cv_header_memory_h="no" | 
 |     ]) | 
 |   ]) | 
 |   if test "$ac_cv_header_memory_h" = "yes"; then | 
 |     AC_DEFINE_UNQUOTED(HAVE_MEMORY_H, 1, | 
 |       [Define to 1 if you have the memory.h header file.]) | 
 |     # | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #include <stdlib.h> | 
 |       ]],[[ | 
 |         void *p = malloc(10); | 
 |         void *q = calloc(10,10); | 
 |         free(p); | 
 |         free(q); | 
 |       ]]) | 
 |     ],[ | 
 |       curl_cv_need_header_memory_h="no" | 
 |     ],[ | 
 |       curl_cv_need_header_memory_h="yes" | 
 |     ]) | 
 |     # | 
 |     case "$curl_cv_need_header_memory_h" in | 
 |       yes) | 
 |         AC_DEFINE_UNQUOTED(NEED_MEMORY_H, 1, | 
 |           [Define to 1 if you need the memory.h header file even with stdlib.h]) | 
 |         ;; | 
 |     esac | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_FUNC_GETNAMEINFO | 
 | dnl ------------------------------------------------- | 
 | dnl Test if the getnameinfo function is available, | 
 | dnl and check the types of five of its arguments. | 
 | dnl If the function succeeds HAVE_GETNAMEINFO will be | 
 | dnl defined, defining the types of the arguments in | 
 | dnl GETNAMEINFO_TYPE_ARG1, GETNAMEINFO_TYPE_ARG2, | 
 | dnl GETNAMEINFO_TYPE_ARG46 and GETNAMEINFO_TYPE_ARG7, | 
 | dnl and also defining the type qualifier of first | 
 | dnl argument in GETNAMEINFO_QUAL_ARG1. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_FUNC_GETNAMEINFO], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WS2TCPIP])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/socket.h netdb.h) | 
 |   # | 
 |   AC_MSG_CHECKING([for getnameinfo]) | 
 |   AC_LINK_IFELSE([ | 
 |     AC_LANG_FUNC_LINK_TRY([getnameinfo]) | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     curl_cv_getnameinfo="yes" | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |     curl_cv_getnameinfo="no" | 
 |   ]) | 
 |   # | 
 |   if test "$curl_cv_getnameinfo" != "yes"; then | 
 |     AC_MSG_CHECKING([deeper for getnameinfo]) | 
 |     AC_LINK_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 |       ]],[[ | 
 |         getnameinfo(); | 
 |       ]]) | 
 |     ],[ | 
 |       AC_MSG_RESULT([yes]) | 
 |       curl_cv_getnameinfo="yes" | 
 |     ],[ | 
 |       AC_MSG_RESULT([but still no]) | 
 |       curl_cv_getnameinfo="no" | 
 |     ]) | 
 |   fi | 
 |   # | 
 |   if test "$curl_cv_getnameinfo" != "yes"; then | 
 |     AC_MSG_CHECKING([deeper and deeper for getnameinfo]) | 
 |     AC_LINK_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #ifdef HAVE_WS2TCPIP_H | 
 | #include <ws2tcpip.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETDB_H | 
 | #include <netdb.h> | 
 | #endif | 
 | #endif | 
 |       ]],[[ | 
 |         getnameinfo(0, 0, 0, 0, 0, 0, 0); | 
 |       ]]) | 
 |     ],[ | 
 |       AC_MSG_RESULT([yes]) | 
 |       curl_cv_getnameinfo="yes" | 
 |     ],[ | 
 |       AC_MSG_RESULT([but still no]) | 
 |       curl_cv_getnameinfo="no" | 
 |     ]) | 
 |   fi | 
 |   # | 
 |   if test "$curl_cv_getnameinfo" = "yes"; then | 
 |     AC_CACHE_CHECK([types of arguments for getnameinfo], | 
 |       [curl_cv_func_getnameinfo_args], [ | 
 |       curl_cv_func_getnameinfo_args="unknown" | 
 |       for gni_arg1 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do | 
 |         for gni_arg2 in 'socklen_t' 'size_t' 'int'; do | 
 |           for gni_arg46 in 'size_t' 'int' 'socklen_t' 'unsigned int' 'DWORD'; do | 
 |             for gni_arg7 in 'int' 'unsigned int'; do | 
 |               if test "$curl_cv_func_getnameinfo_args" = "unknown"; then | 
 |                 AC_COMPILE_IFELSE([ | 
 |                   AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #if (!defined(_WIN32_WINNT)) || (_WIN32_WINNT < 0x0501) | 
 | #undef _WIN32_WINNT | 
 | #define _WIN32_WINNT 0x0501 | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #ifdef HAVE_WS2TCPIP_H | 
 | #include <ws2tcpip.h> | 
 | #endif | 
 | #endif | 
 | #define GNICALLCONV WSAAPI | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETDB_H | 
 | #include <netdb.h> | 
 | #endif | 
 | #define GNICALLCONV | 
 | #endif | 
 |                     extern int GNICALLCONV getnameinfo($gni_arg1, $gni_arg2, | 
 |                                            char *, $gni_arg46, | 
 |                                            char *, $gni_arg46, | 
 |                                            $gni_arg7); | 
 |                   ]],[[ | 
 |                     $gni_arg2 salen=0; | 
 |                     $gni_arg46 hostlen=0; | 
 |                     $gni_arg46 servlen=0; | 
 |                     $gni_arg7 flags=0; | 
 |                     int res = getnameinfo(0, salen, 0, hostlen, 0, servlen, flags); | 
 |                   ]]) | 
 |                 ],[ | 
 |                   curl_cv_func_getnameinfo_args="$gni_arg1,$gni_arg2,$gni_arg46,$gni_arg7" | 
 |                 ]) | 
 |               fi | 
 |             done | 
 |           done | 
 |         done | 
 |       done | 
 |     ]) # AC-CACHE-CHECK | 
 |     if test "$curl_cv_func_getnameinfo_args" = "unknown"; then | 
 |       AC_MSG_WARN([Cannot find proper types to use for getnameinfo args]) | 
 |       AC_MSG_WARN([HAVE_GETNAMEINFO will not be defined]) | 
 |     else | 
 |       gni_prev_IFS=$IFS; IFS=',' | 
 |       set dummy `echo "$curl_cv_func_getnameinfo_args" | sed 's/\*/\*/g'` | 
 |       IFS=$gni_prev_IFS | 
 |       shift | 
 |       # | 
 |       gni_qual_type_arg1=$[1] | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG2, $[2], | 
 |         [Define to the type of arg 2 for getnameinfo.]) | 
 |       AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG46, $[3], | 
 |         [Define to the type of args 4 and 6 for getnameinfo.]) | 
 |       AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG7, $[4], | 
 |         [Define to the type of arg 7 for getnameinfo.]) | 
 |       # | 
 |       prev_sh_opts=$- | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set -f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       case "$gni_qual_type_arg1" in | 
 |         const*) | 
 |           gni_qual_arg1=const | 
 |           gni_type_arg1=`echo $gni_qual_type_arg1 | sed 's/^const //'` | 
 |         ;; | 
 |         *) | 
 |           gni_qual_arg1= | 
 |           gni_type_arg1=$gni_qual_type_arg1 | 
 |         ;; | 
 |       esac | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(GETNAMEINFO_QUAL_ARG1, $gni_qual_arg1, | 
 |         [Define to the type qualifier of arg 1 for getnameinfo.]) | 
 |       AC_DEFINE_UNQUOTED(GETNAMEINFO_TYPE_ARG1, $gni_type_arg1, | 
 |         [Define to the type of arg 1 for getnameinfo.]) | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set +f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(HAVE_GETNAMEINFO, 1, | 
 |         [Define to 1 if you have the getnameinfo function.]) | 
 |       ac_cv_func_getnameinfo="yes" | 
 |     fi | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl TYPE_SOCKADDR_STORAGE | 
 | dnl ------------------------------------------------- | 
 | dnl Check for struct sockaddr_storage. Most IPv6-enabled | 
 | dnl hosts have it, but AIX 4.3 is one known exception. | 
 |  | 
 | AC_DEFUN([TYPE_SOCKADDR_STORAGE], | 
 | [ | 
 |    AC_CHECK_TYPE([struct sockaddr_storage], | 
 |         AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE, 1, | 
 |                   [if struct sockaddr_storage is defined]), , | 
 |    [ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETINET_IN_H | 
 | #include <netinet/in.h> | 
 | #endif | 
 | #ifdef HAVE_ARPA_INET_H | 
 | #include <arpa/inet.h> | 
 | #endif | 
 | #endif | 
 |    ]) | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_NI_WITHSCOPEID | 
 | dnl ------------------------------------------------- | 
 | dnl Check for working NI_WITHSCOPEID in getnameinfo() | 
 |  | 
 | AC_DEFUN([CURL_CHECK_NI_WITHSCOPEID], [ | 
 |   AC_REQUIRE([CURL_CHECK_FUNC_GETNAMEINFO])dnl | 
 |   AC_REQUIRE([TYPE_SOCKADDR_STORAGE])dnl | 
 |   AC_CHECK_HEADERS(stdio.h sys/types.h sys/socket.h \ | 
 |                    netdb.h netinet/in.h arpa/inet.h) | 
 |   # | 
 |   AC_CACHE_CHECK([for working NI_WITHSCOPEID], | 
 |     [ac_cv_working_ni_withscopeid], [ | 
 |     AC_RUN_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #ifdef HAVE_STDLIB_H | 
 | #include <stdlib.h> | 
 | #endif | 
 | #ifdef HAVE_STDIO_H | 
 | #include <stdio.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETDB_H | 
 | #include <netdb.h> | 
 | #endif | 
 | #ifdef HAVE_NETINET_IN_H | 
 | #include <netinet/in.h> | 
 | #endif | 
 | #ifdef HAVE_ARPA_INET_H | 
 | #include <arpa/inet.h> | 
 | #endif | 
 |       ]],[[ | 
 | #if defined(NI_WITHSCOPEID) && defined(HAVE_GETNAMEINFO) | 
 | #ifdef HAVE_STRUCT_SOCKADDR_STORAGE | 
 |         struct sockaddr_storage sa; | 
 | #else | 
 |         unsigned char sa[256]; | 
 | #endif | 
 |         char hostbuf[NI_MAXHOST]; | 
 |         int rc; | 
 |         GETNAMEINFO_TYPE_ARG2 salen = (GETNAMEINFO_TYPE_ARG2)sizeof(sa); | 
 |         GETNAMEINFO_TYPE_ARG46 hostlen = (GETNAMEINFO_TYPE_ARG46)sizeof(hostbuf); | 
 |         GETNAMEINFO_TYPE_ARG7 flags = NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID; | 
 |         int fd = socket(AF_INET6, SOCK_STREAM, 0); | 
 |         if(fd < 0) { | 
 |           perror("socket()"); | 
 |           return 1; /* Error creating socket */ | 
 |         } | 
 |         rc = getsockname(fd, (GETNAMEINFO_TYPE_ARG1)&sa, &salen); | 
 |         if(rc) { | 
 |           perror("getsockname()"); | 
 |           return 2; /* Error retrieving socket name */ | 
 |         } | 
 |         rc = getnameinfo((GETNAMEINFO_TYPE_ARG1)&sa, salen, hostbuf, hostlen, NULL, 0, flags); | 
 |         if(rc) { | 
 |           printf("rc = %s\n", gai_strerror(rc)); | 
 |           return 3; /* Error translating socket address */ | 
 |         } | 
 |         return 0; /* Ok, NI_WITHSCOPEID works */ | 
 | #else | 
 |         return 4; /* Error, NI_WITHSCOPEID not defined or no getnameinfo() */ | 
 | #endif | 
 |       ]]) # AC-LANG-PROGRAM | 
 |     ],[ | 
 |       # Exit code == 0. Program worked. | 
 |       ac_cv_working_ni_withscopeid="yes" | 
 |     ],[ | 
 |       # Exit code != 0. Program failed. | 
 |       ac_cv_working_ni_withscopeid="no" | 
 |     ],[ | 
 |       # Program is not run when cross-compiling. So we assume | 
 |       # NI_WITHSCOPEID will work if we are able to compile it. | 
 |       AC_COMPILE_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 | #include <sys/types.h> | 
 | #include <sys/socket.h> | 
 | #include <netdb.h> | 
 |         ]],[[ | 
 |           unsigned int dummy= NI_NUMERICHOST | NI_NUMERICSERV | NI_WITHSCOPEID; | 
 |         ]]) | 
 |       ],[ | 
 |         ac_cv_working_ni_withscopeid="yes" | 
 |       ],[ | 
 |         ac_cv_working_ni_withscopeid="no" | 
 |       ]) # AC-COMPILE-IFELSE | 
 |     ]) # AC-RUN-IFELSE | 
 |   ]) # AC-CACHE-CHECK | 
 |   case "$ac_cv_working_ni_withscopeid" in | 
 |     yes) | 
 |       AC_DEFINE(HAVE_NI_WITHSCOPEID, 1, | 
 |         [Define to 1 if NI_WITHSCOPEID exists and works.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_FUNC_RECV | 
 | dnl ------------------------------------------------- | 
 | dnl Test if the socket recv() function is available, | 
 | dnl and check its return type and the types of its | 
 | dnl arguments. If the function succeeds HAVE_RECV | 
 | dnl will be defined, defining the types of the arguments | 
 | dnl in RECV_TYPE_ARG1, RECV_TYPE_ARG2, RECV_TYPE_ARG3 | 
 | dnl and RECV_TYPE_ARG4, defining the type of the function | 
 | dnl return value in RECV_TYPE_RETV. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_FUNC_RECV], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/socket.h) | 
 |   # | 
 |   AC_MSG_CHECKING([for recv]) | 
 |   AC_LINK_IFELSE([ | 
 |     AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #endif | 
 |     ]],[[ | 
 |       recv(0, 0, 0, 0); | 
 |     ]]) | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     curl_cv_recv="yes" | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |     curl_cv_recv="no" | 
 |   ]) | 
 |   # | 
 |   if test "$curl_cv_recv" = "yes"; then | 
 |     AC_CACHE_CHECK([types of args and return type for recv], | 
 |       [curl_cv_func_recv_args], [ | 
 |       curl_cv_func_recv_args="unknown" | 
 |       for recv_retv in 'int' 'ssize_t'; do | 
 |         for recv_arg1 in 'int' 'ssize_t' 'SOCKET'; do | 
 |           for recv_arg2 in 'char *' 'void *'; do | 
 |             for recv_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do | 
 |               for recv_arg4 in 'int' 'unsigned int'; do | 
 |                 if test "$curl_cv_func_recv_args" = "unknown"; then | 
 |                   AC_COMPILE_IFELSE([ | 
 |                     AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #define RECVCALLCONV PASCAL | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #define RECVCALLCONV | 
 | #endif | 
 |                       extern $recv_retv RECVCALLCONV | 
 |                       recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4); | 
 |                     ]],[[ | 
 |                       $recv_arg1 s=0; | 
 |                       $recv_arg2 buf=0; | 
 |                       $recv_arg3 len=0; | 
 |                       $recv_arg4 flags=0; | 
 |                       $recv_retv res = recv(s, buf, len, flags); | 
 |                     ]]) | 
 |                   ],[ | 
 |                     curl_cv_func_recv_args="$recv_arg1,$recv_arg2,$recv_arg3,$recv_arg4,$recv_retv" | 
 |                   ]) | 
 |                 fi | 
 |               done | 
 |             done | 
 |           done | 
 |         done | 
 |       done | 
 |     ]) # AC-CACHE-CHECK | 
 |     if test "$curl_cv_func_recv_args" = "unknown"; then | 
 |       AC_MSG_ERROR([Cannot find proper types to use for recv args]) | 
 |     else | 
 |       recv_prev_IFS=$IFS; IFS=',' | 
 |       set dummy `echo "$curl_cv_func_recv_args" | sed 's/\*/\*/g'` | 
 |       IFS=$recv_prev_IFS | 
 |       shift | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(RECV_TYPE_ARG1, $[1], | 
 |         [Define to the type of arg 1 for recv.]) | 
 |       AC_DEFINE_UNQUOTED(RECV_TYPE_ARG2, $[2], | 
 |         [Define to the type of arg 2 for recv.]) | 
 |       AC_DEFINE_UNQUOTED(RECV_TYPE_ARG3, $[3], | 
 |         [Define to the type of arg 3 for recv.]) | 
 |       AC_DEFINE_UNQUOTED(RECV_TYPE_ARG4, $[4], | 
 |         [Define to the type of arg 4 for recv.]) | 
 |       AC_DEFINE_UNQUOTED(RECV_TYPE_RETV, $[5], | 
 |         [Define to the function return type for recv.]) | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(HAVE_RECV, 1, | 
 |         [Define to 1 if you have the recv function.]) | 
 |       ac_cv_func_recv="yes" | 
 |     fi | 
 |   else | 
 |     AC_MSG_ERROR([Unable to link function recv]) | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_FUNC_SEND | 
 | dnl ------------------------------------------------- | 
 | dnl Test if the socket send() function is available, | 
 | dnl and check its return type and the types of its | 
 | dnl arguments. If the function succeeds HAVE_SEND | 
 | dnl will be defined, defining the types of the arguments | 
 | dnl in SEND_TYPE_ARG1, SEND_TYPE_ARG2, SEND_TYPE_ARG3 | 
 | dnl and SEND_TYPE_ARG4, defining the type of the function | 
 | dnl return value in SEND_TYPE_RETV, and also defining the | 
 | dnl type qualifier of second argument in SEND_QUAL_ARG2. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_FUNC_SEND], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/socket.h) | 
 |   # | 
 |   AC_MSG_CHECKING([for send]) | 
 |   AC_LINK_IFELSE([ | 
 |     AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #endif | 
 |     ]],[[ | 
 |       send(0, 0, 0, 0); | 
 |     ]]) | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     curl_cv_send="yes" | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |     curl_cv_send="no" | 
 |   ]) | 
 |   # | 
 |   if test "$curl_cv_send" = "yes"; then | 
 |     AC_CACHE_CHECK([types of args and return type for send], | 
 |       [curl_cv_func_send_args], [ | 
 |       curl_cv_func_send_args="unknown" | 
 |       for send_retv in 'int' 'ssize_t'; do | 
 |         for send_arg1 in 'int' 'ssize_t' 'SOCKET'; do | 
 |           for send_arg2 in 'char *' 'void *' 'const char *' 'const void *'; do | 
 |             for send_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do | 
 |               for send_arg4 in 'int' 'unsigned int'; do | 
 |                 if test "$curl_cv_func_send_args" = "unknown"; then | 
 |                   AC_COMPILE_IFELSE([ | 
 |                     AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #define SENDCALLCONV PASCAL | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #define SENDCALLCONV | 
 | #endif | 
 |                       extern $send_retv SENDCALLCONV | 
 |                       send($send_arg1, $send_arg2, $send_arg3, $send_arg4); | 
 |                     ]],[[ | 
 |                       $send_arg1 s=0; | 
 |                       $send_arg3 len=0; | 
 |                       $send_arg4 flags=0; | 
 |                       $send_retv res = send(s, 0, len, flags); | 
 |                     ]]) | 
 |                   ],[ | 
 |                     curl_cv_func_send_args="$send_arg1,$send_arg2,$send_arg3,$send_arg4,$send_retv" | 
 |                   ]) | 
 |                 fi | 
 |               done | 
 |             done | 
 |           done | 
 |         done | 
 |       done | 
 |     ]) # AC-CACHE-CHECK | 
 |     if test "$curl_cv_func_send_args" = "unknown"; then | 
 |       AC_MSG_ERROR([Cannot find proper types to use for send args]) | 
 |     else | 
 |       send_prev_IFS=$IFS; IFS=',' | 
 |       set dummy `echo "$curl_cv_func_send_args" | sed 's/\*/\*/g'` | 
 |       IFS=$send_prev_IFS | 
 |       shift | 
 |       # | 
 |       send_qual_type_arg2=$[2] | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(SEND_TYPE_ARG1, $[1], | 
 |         [Define to the type of arg 1 for send.]) | 
 |       AC_DEFINE_UNQUOTED(SEND_TYPE_ARG3, $[3], | 
 |         [Define to the type of arg 3 for send.]) | 
 |       AC_DEFINE_UNQUOTED(SEND_TYPE_ARG4, $[4], | 
 |         [Define to the type of arg 4 for send.]) | 
 |       AC_DEFINE_UNQUOTED(SEND_TYPE_RETV, $[5], | 
 |         [Define to the function return type for send.]) | 
 |       # | 
 |       prev_sh_opts=$- | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set -f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       case "$send_qual_type_arg2" in | 
 |         const*) | 
 |           send_qual_arg2=const | 
 |           send_type_arg2=`echo $send_qual_type_arg2 | sed 's/^const //'` | 
 |         ;; | 
 |         *) | 
 |           send_qual_arg2= | 
 |           send_type_arg2=$send_qual_type_arg2 | 
 |         ;; | 
 |       esac | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(SEND_QUAL_ARG2, $send_qual_arg2, | 
 |         [Define to the type qualifier of arg 2 for send.]) | 
 |       AC_DEFINE_UNQUOTED(SEND_TYPE_ARG2, $send_type_arg2, | 
 |         [Define to the type of arg 2 for send.]) | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set +f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(HAVE_SEND, 1, | 
 |         [Define to 1 if you have the send function.]) | 
 |       ac_cv_func_send="yes" | 
 |     fi | 
 |   else | 
 |     AC_MSG_ERROR([Unable to link function send]) | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_FUNC_RECVFROM | 
 | dnl ------------------------------------------------- | 
 | dnl Test if the socket recvfrom() function is available, | 
 | dnl and check its return type and the types of its | 
 | dnl arguments. If the function succeeds HAVE_RECVFROM | 
 | dnl will be defined, defining the types of the arguments | 
 | dnl in RECVFROM_TYPE_ARG1, RECVFROM_TYPE_ARG2, and so on | 
 | dnl to RECVFROM_TYPE_ARG6, defining also the type of the | 
 | dnl function return value in RECVFROM_TYPE_RETV. | 
 | dnl Notice that the types returned for pointer arguments | 
 | dnl will actually be the type pointed by the pointer. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_FUNC_RECVFROM], [ | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/socket.h) | 
 |   # | 
 |   AC_MSG_CHECKING([for recvfrom]) | 
 |   AC_LINK_IFELSE([ | 
 |     AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #endif | 
 |     ]],[[ | 
 |       recvfrom(0, 0, 0, 0, 0, 0); | 
 |     ]]) | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     curl_cv_recvfrom="yes" | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |     curl_cv_recvfrom="no" | 
 |   ]) | 
 |   # | 
 |   if test "$curl_cv_recvfrom" = "yes"; then | 
 |     AC_CACHE_CHECK([types of args and return type for recvfrom], | 
 |       [curl_cv_func_recvfrom_args], [ | 
 |       curl_cv_func_recvfrom_args="unknown" | 
 |       for recvfrom_retv in 'int' 'ssize_t'; do | 
 |         for recvfrom_arg1 in 'int' 'ssize_t' 'SOCKET'; do | 
 |           for recvfrom_arg2 in 'char *' 'void *'; do | 
 |             for recvfrom_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do | 
 |               for recvfrom_arg4 in 'int' 'unsigned int'; do | 
 |                 for recvfrom_arg5 in 'struct sockaddr *' 'void *' 'const struct sockaddr *'; do | 
 |                   for recvfrom_arg6 in 'socklen_t *' 'int *' 'unsigned int *' 'size_t *' 'void *'; do | 
 |                     if test "$curl_cv_func_recvfrom_args" = "unknown"; then | 
 |                       AC_COMPILE_IFELSE([ | 
 |                         AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #define RECVFROMCALLCONV PASCAL | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #define RECVFROMCALLCONV | 
 | #endif | 
 |                           extern $recvfrom_retv RECVFROMCALLCONV | 
 |                           recvfrom($recvfrom_arg1, $recvfrom_arg2, | 
 |                                    $recvfrom_arg3, $recvfrom_arg4, | 
 |                                    $recvfrom_arg5, $recvfrom_arg6); | 
 |                         ]],[[ | 
 |                           $recvfrom_arg1 s=0; | 
 |                           $recvfrom_arg2 buf=0; | 
 |                           $recvfrom_arg3 len=0; | 
 |                           $recvfrom_arg4 flags=0; | 
 |                           $recvfrom_arg5 addr=0; | 
 |                           $recvfrom_arg6 addrlen=0; | 
 |                           $recvfrom_retv res=0; | 
 |                           res = recvfrom(s, buf, len, flags, addr, addrlen); | 
 |                         ]]) | 
 |                       ],[ | 
 |                         curl_cv_func_recvfrom_args="$recvfrom_arg1,$recvfrom_arg2,$recvfrom_arg3,$recvfrom_arg4,$recvfrom_arg5,$recvfrom_arg6,$recvfrom_retv" | 
 |                       ]) | 
 |                     fi | 
 |                   done | 
 |                 done | 
 |               done | 
 |             done | 
 |           done | 
 |         done | 
 |       done | 
 |     ]) # AC-CACHE-CHECK | 
 |     # Nearly last minute change for this release starts here | 
 |     AC_DEFINE_UNQUOTED(HAVE_RECVFROM, 1, | 
 |       [Define to 1 if you have the recvfrom function.]) | 
 |     ac_cv_func_recvfrom="yes" | 
 |     # Nearly last minute change for this release ends here | 
 |     if test "$curl_cv_func_recvfrom_args" = "unknown"; then | 
 |       AC_MSG_WARN([Cannot find proper types to use for recvfrom args]) | 
 |     else | 
 |       recvfrom_prev_IFS=$IFS; IFS=',' | 
 |       set dummy `echo "$curl_cv_func_recvfrom_args" | sed 's/\*/\*/g'` | 
 |       IFS=$recvfrom_prev_IFS | 
 |       shift | 
 |       # | 
 |       recvfrom_ptrt_arg2=$[2] | 
 |       recvfrom_qual_ptrt_arg5=$[5] | 
 |       recvfrom_ptrt_arg6=$[6] | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG1, $[1], | 
 |         [Define to the type of arg 1 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG3, $[3], | 
 |         [Define to the type of arg 3 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG4, $[4], | 
 |         [Define to the type of arg 4 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_RETV, $[7], | 
 |         [Define to the function return type for recvfrom.]) | 
 |       # | 
 |       prev_sh_opts=$- | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set -f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       case "$recvfrom_qual_ptrt_arg5" in | 
 |         const*) | 
 |           recvfrom_qual_arg5=const | 
 |           recvfrom_ptrt_arg5=`echo $recvfrom_qual_ptrt_arg5 | sed 's/^const //'` | 
 |         ;; | 
 |         *) | 
 |           recvfrom_qual_arg5= | 
 |           recvfrom_ptrt_arg5=$recvfrom_qual_ptrt_arg5 | 
 |         ;; | 
 |       esac | 
 |       # | 
 |       recvfrom_type_arg2=`echo $recvfrom_ptrt_arg2 | sed 's/ \*//'` | 
 |       recvfrom_type_arg5=`echo $recvfrom_ptrt_arg5 | sed 's/ \*//'` | 
 |       recvfrom_type_arg6=`echo $recvfrom_ptrt_arg6 | sed 's/ \*//'` | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG2, $recvfrom_type_arg2, | 
 |         [Define to the type pointed by arg 2 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_QUAL_ARG5, $recvfrom_qual_arg5, | 
 |         [Define to the type qualifier pointed by arg 5 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG5, $recvfrom_type_arg5, | 
 |         [Define to the type pointed by arg 5 for recvfrom.]) | 
 |       AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG6, $recvfrom_type_arg6, | 
 |         [Define to the type pointed by arg 6 for recvfrom.]) | 
 |       # | 
 |       if test "$recvfrom_type_arg2" = "void"; then | 
 |         AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG2_IS_VOID, 1, | 
 |           [Define to 1 if the type pointed by arg 2 for recvfrom is void.]) | 
 |       fi | 
 |       if test "$recvfrom_type_arg5" = "void"; then | 
 |         AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG5_IS_VOID, 1, | 
 |           [Define to 1 if the type pointed by arg 5 for recvfrom is void.]) | 
 |       fi | 
 |       if test "$recvfrom_type_arg6" = "void"; then | 
 |         AC_DEFINE_UNQUOTED(RECVFROM_TYPE_ARG6_IS_VOID, 1, | 
 |           [Define to 1 if the type pointed by arg 6 for recvfrom is void.]) | 
 |       fi | 
 |       # | 
 |       case $prev_sh_opts in | 
 |         *f*) | 
 |           ;; | 
 |         *) | 
 |           set +f | 
 |           ;; | 
 |       esac | 
 |       # | 
 |       AC_DEFINE_UNQUOTED(HAVE_RECVFROM, 1, | 
 |         [Define to 1 if you have the recvfrom function.]) | 
 |       ac_cv_func_recvfrom="yes" | 
 |     fi | 
 |   else | 
 |     AC_MSG_WARN([Unable to link function recvfrom]) | 
 |     AC_MSG_WARN([Your system will be vulnerable to some forms of DNS cache poisoning]) | 
 |   fi | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_MSG_NOSIGNAL | 
 | dnl ------------------------------------------------- | 
 | dnl Check for MSG_NOSIGNAL | 
 |  | 
 | AC_DEFUN([CURL_CHECK_MSG_NOSIGNAL], [ | 
 |   AC_CHECK_HEADERS(sys/types.h sys/socket.h) | 
 |   AC_CACHE_CHECK([for MSG_NOSIGNAL], [ac_cv_msg_nosignal], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #endif | 
 |       ]],[[ | 
 |         int flag=MSG_NOSIGNAL; | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_msg_nosignal="yes" | 
 |     ],[ | 
 |       ac_cv_msg_nosignal="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_msg_nosignal" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_MSG_NOSIGNAL, 1, | 
 |         [Define to 1 if you have the MSG_NOSIGNAL flag.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_STRUCT_TIMEVAL | 
 | dnl ------------------------------------------------- | 
 | dnl Check for timeval struct | 
 |  | 
 | AC_DEFUN([CURL_CHECK_STRUCT_TIMEVAL], [ | 
 |   AC_REQUIRE([AC_HEADER_TIME])dnl | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK])dnl | 
 |   AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/time.h time.h sys/socket.h) | 
 |   AC_CACHE_CHECK([for struct timeval], [ac_cv_struct_timeval], [ | 
 |     AC_COMPILE_IFELSE([ | 
 |       AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #endif | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TIME_H | 
 | #include <sys/time.h> | 
 | #ifdef TIME_WITH_SYS_TIME | 
 | #include <time.h> | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_TIME_H | 
 | #include <time.h> | 
 | #endif | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 |       ]],[[ | 
 |         struct timeval ts; | 
 |         ts.tv_sec  = 0; | 
 |         ts.tv_usec = 0; | 
 |       ]]) | 
 |     ],[ | 
 |       ac_cv_struct_timeval="yes" | 
 |     ],[ | 
 |       ac_cv_struct_timeval="no" | 
 |     ]) | 
 |   ]) | 
 |   case "$ac_cv_struct_timeval" in | 
 |     yes) | 
 |       AC_DEFINE_UNQUOTED(HAVE_STRUCT_TIMEVAL, 1, | 
 |         [Define to 1 if you have the timeval struct.]) | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl TYPE_SIG_ATOMIC_T | 
 | dnl ------------------------------------------------- | 
 | dnl Check if the sig_atomic_t type is available, and | 
 | dnl verify if it is already defined as volatile. | 
 |  | 
 | AC_DEFUN([TYPE_SIG_ATOMIC_T], [ | 
 |   AC_CHECK_HEADERS(signal.h) | 
 |   AC_CHECK_TYPE([sig_atomic_t],[ | 
 |     AC_DEFINE(HAVE_SIG_ATOMIC_T, 1, | 
 |       [Define to 1 if sig_atomic_t is an available typedef.]) | 
 |   ], ,[ | 
 | #ifdef HAVE_SIGNAL_H | 
 | #include <signal.h> | 
 | #endif | 
 |   ]) | 
 |   case "$ac_cv_type_sig_atomic_t" in | 
 |     yes) | 
 |       # | 
 |       AC_MSG_CHECKING([if sig_atomic_t is already defined as volatile]) | 
 |       AC_LINK_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 | #ifdef HAVE_SIGNAL_H | 
 | #include <signal.h> | 
 | #endif | 
 |         ]],[[ | 
 |           static volatile sig_atomic_t dummy = 0; | 
 |         ]]) | 
 |       ],[ | 
 |         AC_MSG_RESULT([no]) | 
 |         ac_cv_sig_atomic_t_volatile="no" | 
 |       ],[ | 
 |         AC_MSG_RESULT([yes]) | 
 |         ac_cv_sig_atomic_t_volatile="yes" | 
 |       ]) | 
 |       # | 
 |       if test "$ac_cv_sig_atomic_t_volatile" = "yes"; then | 
 |         AC_DEFINE(HAVE_SIG_ATOMIC_T_VOLATILE, 1, | 
 |           [Define to 1 if sig_atomic_t is already defined as volatile.]) | 
 |       fi | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl TYPE_IN_ADDR_T | 
 | dnl ------------------------------------------------- | 
 | dnl Check for in_addr_t: it is used to receive the return code of inet_addr() | 
 | dnl and a few other things. | 
 |  | 
 | AC_DEFUN([TYPE_IN_ADDR_T], [ | 
 |   AC_CHECK_TYPE([in_addr_t], ,[ | 
 |     dnl in_addr_t not available | 
 |     AC_CACHE_CHECK([for in_addr_t equivalent], | 
 |       [curl_cv_in_addr_t_equiv], [ | 
 |       curl_cv_in_addr_t_equiv="unknown" | 
 |       for t in "unsigned long" int size_t unsigned long; do | 
 |         if test "$curl_cv_in_addr_t_equiv" = "unknown"; then | 
 |           AC_LINK_IFELSE([ | 
 |             AC_LANG_PROGRAM([[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETINET_IN_H | 
 | #include <netinet/in.h> | 
 | #endif | 
 | #ifdef HAVE_ARPA_INET_H | 
 | #include <arpa/inet.h> | 
 | #endif | 
 | #endif | 
 |             ]],[[ | 
 |               $t data = inet_addr ("1.2.3.4"); | 
 |             ]]) | 
 |           ],[ | 
 |             curl_cv_in_addr_t_equiv="$t" | 
 |           ]) | 
 |         fi | 
 |       done | 
 |     ]) | 
 |     case "$curl_cv_in_addr_t_equiv" in | 
 |       unknown) | 
 |         AC_MSG_ERROR([Cannot find a type to use in place of in_addr_t]) | 
 |         ;; | 
 |       *) | 
 |         AC_DEFINE_UNQUOTED(in_addr_t, $curl_cv_in_addr_t_equiv, | 
 |           [Type to use in place of in_addr_t when system does not provide it.]) | 
 |         ;; | 
 |     esac | 
 |   ],[ | 
 | #undef inline | 
 | #ifdef HAVE_WINDOWS_H | 
 | #ifndef WIN32_LEAN_AND_MEAN | 
 | #define WIN32_LEAN_AND_MEAN | 
 | #endif | 
 | #include <windows.h> | 
 | #ifdef HAVE_WINSOCK2_H | 
 | #include <winsock2.h> | 
 | #else | 
 | #ifdef HAVE_WINSOCK_H | 
 | #include <winsock.h> | 
 | #endif | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_SOCKET_H | 
 | #include <sys/socket.h> | 
 | #endif | 
 | #ifdef HAVE_NETINET_IN_H | 
 | #include <netinet/in.h> | 
 | #endif | 
 | #ifdef HAVE_ARPA_INET_H | 
 | #include <arpa/inet.h> | 
 | #endif | 
 | #endif | 
 |   ]) | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC | 
 | dnl ------------------------------------------------- | 
 | dnl Check if monotonic clock_gettime is available. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC], [ | 
 |   AC_REQUIRE([AC_HEADER_TIME])dnl | 
 |   AC_CHECK_HEADERS(sys/types.h sys/time.h time.h) | 
 |   AC_MSG_CHECKING([for monotonic clock_gettime]) | 
 |   AC_COMPILE_IFELSE([ | 
 |     AC_LANG_PROGRAM([[ | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TIME_H | 
 | #include <sys/time.h> | 
 | #ifdef TIME_WITH_SYS_TIME | 
 | #include <time.h> | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_TIME_H | 
 | #include <time.h> | 
 | #endif | 
 | #endif | 
 |     ]],[[ | 
 |       struct timespec ts; | 
 |       (void)clock_gettime(CLOCK_MONOTONIC, &ts); | 
 |     ]]) | 
 |   ],[ | 
 |     AC_MSG_RESULT([yes]) | 
 |     ac_cv_func_clock_gettime="yes" | 
 |   ],[ | 
 |     AC_MSG_RESULT([no]) | 
 |     ac_cv_func_clock_gettime="no" | 
 |   ]) | 
 |   dnl Definition of HAVE_CLOCK_GETTIME_MONOTONIC is intentionally postponed | 
 |   dnl until library linking and run-time checks for clock_gettime succeed. | 
 | ]) | 
 |  | 
 |  | 
 | dnl CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC | 
 | dnl ------------------------------------------------- | 
 | dnl If monotonic clock_gettime is available then, | 
 | dnl check and prepended to LIBS any needed libraries. | 
 |  | 
 | AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [ | 
 |   AC_REQUIRE([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC])dnl | 
 |   # | 
 |   if test "$ac_cv_func_clock_gettime" = "yes"; then | 
 |     # | 
 |     AC_MSG_CHECKING([for clock_gettime in libraries]) | 
 |     # | 
 |     curl_cv_save_LIBS="$LIBS" | 
 |     curl_cv_gclk_LIBS="unknown" | 
 |     # | 
 |     for x_xlibs in '' '-lrt' '-lposix4' ; do | 
 |       if test "$curl_cv_gclk_LIBS" = "unknown"; then | 
 |         if test -z "$x_xlibs"; then | 
 |           LIBS="$curl_cv_save_LIBS" | 
 |         else | 
 |           LIBS="$x_xlibs $curl_cv_save_LIBS" | 
 |         fi | 
 |         AC_LINK_IFELSE([ | 
 |           AC_LANG_PROGRAM([[ | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TIME_H | 
 | #include <sys/time.h> | 
 | #ifdef TIME_WITH_SYS_TIME | 
 | #include <time.h> | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_TIME_H | 
 | #include <time.h> | 
 | #endif | 
 | #endif | 
 |           ]],[[ | 
 |             struct timespec ts; | 
 |             (void)clock_gettime(CLOCK_MONOTONIC, &ts); | 
 |           ]]) | 
 |         ],[ | 
 |           curl_cv_gclk_LIBS="$x_xlibs" | 
 |         ]) | 
 |       fi | 
 |     done | 
 |     # | 
 |     LIBS="$curl_cv_save_LIBS" | 
 |     # | 
 |     case X-"$curl_cv_gclk_LIBS" in | 
 |       X-unknown) | 
 |         AC_MSG_RESULT([cannot find clock_gettime]) | 
 |         AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined]) | 
 |         ac_cv_func_clock_gettime="no" | 
 |         ;; | 
 |       X-) | 
 |         AC_MSG_RESULT([no additional lib required]) | 
 |         ac_cv_func_clock_gettime="yes" | 
 |         ;; | 
 |       *) | 
 |         if test -z "$curl_cv_save_LIBS"; then | 
 |           LIBS="$curl_cv_gclk_LIBS" | 
 |         else | 
 |           LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS" | 
 |         fi | 
 |         AC_MSG_RESULT([$curl_cv_gclk_LIBS]) | 
 |         ac_cv_func_clock_gettime="yes" | 
 |         ;; | 
 |     esac | 
 |     # | 
 |     dnl only do runtime verification when not cross-compiling | 
 |     if test "x$cross_compiling" != "xyes" && | 
 |       test "$ac_cv_func_clock_gettime" = "yes"; then | 
 |       AC_MSG_CHECKING([if monotonic clock_gettime works]) | 
 |       AC_RUN_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 | #ifdef HAVE_STDLIB_H | 
 | #include <stdlib.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TYPES_H | 
 | #include <sys/types.h> | 
 | #endif | 
 | #ifdef HAVE_SYS_TIME_H | 
 | #include <sys/time.h> | 
 | #ifdef TIME_WITH_SYS_TIME | 
 | #include <time.h> | 
 | #endif | 
 | #else | 
 | #ifdef HAVE_TIME_H | 
 | #include <time.h> | 
 | #endif | 
 | #endif | 
 |         ]],[[ | 
 |           struct timespec ts; | 
 |           if (0 == clock_gettime(CLOCK_MONOTONIC, &ts)) | 
 |             exit(0); | 
 |           else | 
 |             exit(1); | 
 |         ]]) | 
 |       ],[ | 
 |         AC_MSG_RESULT([yes]) | 
 |       ],[ | 
 |         AC_MSG_RESULT([no]) | 
 |         AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined]) | 
 |         ac_cv_func_clock_gettime="no" | 
 |         LIBS="$curl_cv_save_LIBS" | 
 |       ]) | 
 |     fi | 
 |     # | 
 |     case "$ac_cv_func_clock_gettime" in | 
 |       yes) | 
 |         AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME_MONOTONIC, 1, | 
 |           [Define to 1 if you have the clock_gettime function and monotonic timer.]) | 
 |         ;; | 
 |     esac | 
 |     # | 
 |   fi | 
 |   # | 
 | ]) | 
 |  | 
 |  | 
 | dnl CARES_CHECK_LIBS_CONNECT | 
 | dnl ------------------------------------------------- | 
 | dnl Verify if network connect function is already available | 
 | dnl using current libraries or if another one is required. | 
 |  | 
 | AC_DEFUN([CARES_CHECK_LIBS_CONNECT], [ | 
 |   AC_REQUIRE([CARES_INCLUDES_WINSOCK2])dnl | 
 |   AC_MSG_CHECKING([for connect in libraries]) | 
 |   tst_connect_save_LIBS="$LIBS" | 
 |   tst_connect_need_LIBS="unknown" | 
 |   for tst_lib in '' '-lsocket' ; do | 
 |     if test "$tst_connect_need_LIBS" = "unknown"; then | 
 |       LIBS="$tst_lib $tst_connect_save_LIBS" | 
 |       AC_LINK_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 |           $cares_includes_winsock2 | 
 |           #ifndef HAVE_WINDOWS_H | 
 |             int connect(int, void*, int); | 
 |           #endif | 
 |         ]],[[ | 
 |           if(0 != connect(0, 0, 0)) | 
 |             return 1; | 
 |         ]]) | 
 |       ],[ | 
 |         tst_connect_need_LIBS="$tst_lib" | 
 |       ]) | 
 |     fi | 
 |   done | 
 |   LIBS="$tst_connect_save_LIBS" | 
 |   # | 
 |   case X-"$tst_connect_need_LIBS" in | 
 |     X-unknown) | 
 |       AC_MSG_RESULT([cannot find connect]) | 
 |       AC_MSG_ERROR([cannot find connect function in libraries.]) | 
 |       ;; | 
 |     X-) | 
 |       AC_MSG_RESULT([yes]) | 
 |       ;; | 
 |     *) | 
 |       AC_MSG_RESULT([$tst_connect_need_LIBS]) | 
 |       LIBS="$tst_connect_need_LIBS $tst_connect_save_LIBS" | 
 |       ;; | 
 |   esac | 
 | ]) | 
 |  | 
 |  | 
 | dnl CARES_DEFINE_UNQUOTED (VARIABLE, [VALUE]) | 
 | dnl ------------------------------------------------- | 
 | dnl Like AC_DEFINE_UNQUOTED this macro will define a C preprocessor | 
 | dnl symbol that can be further used in custom template configuration | 
 | dnl files. This macro, unlike AC_DEFINE_UNQUOTED, does not use a third | 
 | dnl argument for the description. Symbol definitions done with this | 
 | dnl macro are intended to be exclusively used in handcrafted *.h.in | 
 | dnl template files. Contrary to what AC_DEFINE_UNQUOTED does, this one | 
 | dnl prevents autoheader generation and insertion of symbol template | 
 | dnl stub and definition into the first configuration header file. Do | 
 | dnl not use this macro as a replacement for AC_DEFINE_UNQUOTED, each | 
 | dnl one serves different functional needs. | 
 |  | 
 | AC_DEFUN([CARES_DEFINE_UNQUOTED], [ | 
 | cat >>confdefs.h <<_EOF | 
 | [@%:@define] $1 ifelse($#, 2, [$2], 1) | 
 | _EOF | 
 | ]) | 
 |  | 
 | dnl CARES_CONFIGURE_ARES_SOCKLEN_T | 
 | dnl ------------------------------------------------- | 
 | dnl Find out suitable ares_socklen_t data type definition and size, making | 
 | dnl appropriate definitions for template file ares_build.h.in | 
 | dnl to properly configure and use the library. | 
 | dnl | 
 | dnl The need for the ares_socklen_t definition arises mainly to properly | 
 | dnl interface HP-UX systems which on one hand have a typedef'ed socklen_t | 
 | dnl data type which is 32 or 64-Bit wide depending on the data model being | 
 | dnl used, and that on the other hand is only actually used when interfacing | 
 | dnl the X/Open sockets provided in the xnet library. | 
 |  | 
 | AC_DEFUN([CARES_CONFIGURE_ARES_SOCKLEN_T], [ | 
 |   AC_REQUIRE([CARES_INCLUDES_WS2TCPIP])dnl | 
 |   AC_REQUIRE([CARES_INCLUDES_SYS_SOCKET])dnl | 
 |   AC_REQUIRE([CARES_PREPROCESS_CALLCONV])dnl | 
 |   # | 
 |   AC_MSG_CHECKING([for ares_socklen_t data type]) | 
 |   cares_typeof_ares_socklen_t="unknown" | 
 |   for arg1 in int SOCKET; do | 
 |     for arg2 in 'struct sockaddr' void; do | 
 |       for t in socklen_t int size_t 'unsigned int' long 'unsigned long' void; do | 
 |         if test "$cares_typeof_ares_socklen_t" = "unknown"; then | 
 |           AC_COMPILE_IFELSE([ | 
 |             AC_LANG_PROGRAM([[ | 
 |               $cares_includes_ws2tcpip | 
 |               $cares_includes_sys_socket | 
 |               $cares_preprocess_callconv | 
 |               extern int FUNCALLCONV getpeername($arg1, $arg2 *, $t *); | 
 |             ]],[[ | 
 |               $t *lenptr = 0; | 
 |               if(0 != getpeername(0, 0, lenptr)) | 
 |                 return 1; | 
 |             ]]) | 
 |           ],[ | 
 |             cares_typeof_ares_socklen_t="$t" | 
 |           ]) | 
 |         fi | 
 |       done | 
 |     done | 
 |   done | 
 |   for t in socklen_t int; do | 
 |     if test "$cares_typeof_ares_socklen_t" = "void"; then | 
 |       AC_COMPILE_IFELSE([ | 
 |         AC_LANG_PROGRAM([[ | 
 |           $cares_includes_sys_socket | 
 |           typedef $t ares_socklen_t; | 
 |         ]],[[ | 
 |           ares_socklen_t dummy; | 
 |         ]]) | 
 |       ],[ | 
 |         cares_typeof_ares_socklen_t="$t" | 
 |       ]) | 
 |     fi | 
 |   done | 
 |   AC_MSG_RESULT([$cares_typeof_ares_socklen_t]) | 
 |   if test "$cares_typeof_ares_socklen_t" = "void" || | 
 |     test "$cares_typeof_ares_socklen_t" = "unknown"; then | 
 |     AC_MSG_ERROR([cannot find data type for ares_socklen_t.]) | 
 |   fi | 
 |   # | 
 |   AC_MSG_CHECKING([size of ares_socklen_t]) | 
 |   cares_sizeof_ares_socklen_t="unknown" | 
 |   cares_pull_headers_socklen_t="unknown" | 
 |   if test "$ac_cv_header_ws2tcpip_h" = "yes"; then | 
 |     tst_pull_header_checks='none ws2tcpip' | 
 |     tst_size_checks='4' | 
 |   else | 
 |     tst_pull_header_checks='none systypes syssocket' | 
 |     tst_size_checks='4 8 2' | 
 |   fi | 
 |   for tst_size in $tst_size_checks; do | 
 |     for tst_pull_headers in $tst_pull_header_checks; do | 
 |       if test "$cares_sizeof_ares_socklen_t" = "unknown"; then | 
 |         case $tst_pull_headers in | 
 |           ws2tcpip) | 
 |             tmp_includes="$cares_includes_ws2tcpip" | 
 |             ;; | 
 |           systypes) | 
 |             tmp_includes="$cares_includes_sys_types" | 
 |             ;; | 
 |           syssocket) | 
 |             tmp_includes="$cares_includes_sys_socket" | 
 |             ;; | 
 |           *) | 
 |             tmp_includes="" | 
 |             ;; | 
 |         esac | 
 |         AC_COMPILE_IFELSE([ | 
 |           AC_LANG_PROGRAM([[ | 
 |             $tmp_includes | 
 |             typedef $cares_typeof_ares_socklen_t ares_socklen_t; | 
 |             typedef char dummy_arr[sizeof(ares_socklen_t) == $tst_size ? 1 : -1]; | 
 |           ]],[[ | 
 |             ares_socklen_t dummy; | 
 |           ]]) | 
 |         ],[ | 
 |           cares_sizeof_ares_socklen_t="$tst_size" | 
 |           cares_pull_headers_socklen_t="$tst_pull_headers" | 
 |         ]) | 
 |       fi | 
 |     done | 
 |   done | 
 |   AC_MSG_RESULT([$cares_sizeof_ares_socklen_t]) | 
 |   if test "$cares_sizeof_ares_socklen_t" = "unknown"; then | 
 |     AC_MSG_ERROR([cannot find out size of ares_socklen_t.]) | 
 |   fi | 
 |   # | 
 |   case $cares_pull_headers_socklen_t in | 
 |     ws2tcpip) | 
 |       CARES_DEFINE_UNQUOTED([CARES_PULL_WS2TCPIP_H]) | 
 |       ;; | 
 |     systypes) | 
 |       CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_TYPES_H]) | 
 |       ;; | 
 |     syssocket) | 
 |       CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_TYPES_H]) | 
 |       CARES_DEFINE_UNQUOTED([CARES_PULL_SYS_SOCKET_H]) | 
 |       ;; | 
 |   esac | 
 |   CARES_DEFINE_UNQUOTED([CARES_TYPEOF_ARES_SOCKLEN_T], [$cares_typeof_ares_socklen_t]) | 
 |   CARES_DEFINE_UNQUOTED([CARES_SIZEOF_ARES_SOCKLEN_T], [$cares_sizeof_ares_socklen_t]) | 
 | ]) | 
 |  | 
 |  | 
 | dnl This macro determines if the specified struct exists in the specified file | 
 | dnl Syntax: | 
 | dnl CARES_CHECK_STRUCT(headers, struct name, if found, [if not found]) | 
 |  | 
 | AC_DEFUN([CARES_CHECK_STRUCT], [ | 
 |   AC_MSG_CHECKING([for struct $2]) | 
 |   AC_TRY_COMPILE([$1], | 
 |     [ | 
 |       struct $2 struct_instance; | 
 |     ], ac_struct="yes", ac_found="no") | 
 |   if test "$ac_struct" = "yes" ; then | 
 |     AC_MSG_RESULT(yes) | 
 |     $3 | 
 |   else | 
 |     AC_MSG_RESULT(no) | 
 |     $4 | 
 |   fi | 
 | ]) | 
 |  | 
 | dnl This macro determines if the specified constant exists in the specified file | 
 | dnl Syntax: | 
 | dnl CARES_CHECK_CONSTANT(headers, constant name, if found, [if not found]) | 
 |  | 
 | AC_DEFUN([CARES_CHECK_CONSTANT], [ | 
 |   AC_MSG_CHECKING([for $2]) | 
 |   AC_EGREP_CPP(VARIABLEWASDEFINED, | 
 |    [ | 
 |       $1 | 
 |  | 
 |       #ifdef $2 | 
 |         VARIABLEWASDEFINED | 
 |       #else | 
 |         NJET | 
 |       #endif | 
 |     ], ac_constant="yes", ac_constant="no" | 
 |   ) | 
 |   if test "$ac_constant" = "yes" ; then | 
 |     AC_MSG_RESULT(yes) | 
 |     $3 | 
 |   else | 
 |     AC_MSG_RESULT(no) | 
 |     $4 | 
 |   fi | 
 | ]) | 
 |  |