diff options
Diffstat (limited to 'src/c-ares/configure.ac')
| -rw-r--r-- | src/c-ares/configure.ac | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/src/c-ares/configure.ac b/src/c-ares/configure.ac new file mode 100644 index 000000000..d31b5968e --- /dev/null +++ b/src/c-ares/configure.ac @@ -0,0 +1,897 @@ +AC_PREREQ(2.57) + +dnl Version not hardcoded here. Fetched later from ares_version.h +AC_INIT([c-ares], [-], + [c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares]) + +XC_OVR_ZZ50 +XC_OVR_ZZ60 +CARES_OVERRIDE_AUTOCONF + +AC_CONFIG_SRCDIR([ares_ipv6.h]) +AC_CONFIG_HEADERS([ares_config.h ares_build.h]) +AC_CONFIG_MACRO_DIR([m4]) +AM_MAINTAINER_MODE +m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) + +CARES_CHECK_OPTION_DEBUG +CARES_CHECK_OPTION_OPTIMIZE +CARES_CHECK_OPTION_WARNINGS +CARES_CHECK_OPTION_WERROR +CARES_CHECK_OPTION_CURLDEBUG +CARES_CHECK_OPTION_SYMBOL_HIDING +CARES_CHECK_OPTION_EXPOSE_STATICS + +XC_CHECK_PATH_SEPARATOR + +dnl SED is mandatory for configure process and libtool. +dnl Set it now, allowing it to be changed later. +AC_PATH_PROG([SED], [sed], [not_found], + [$PATH:/usr/bin:/usr/local/bin]) +if test -z "$SED" || test "$SED" = "not_found"; then + AC_MSG_ERROR([sed not found in PATH. Cannot continue without sed.]) +fi +AC_SUBST([SED]) + +dnl GREP is mandatory for configure process and libtool. +dnl Set it now, allowing it to be changed later. +AC_PATH_PROG([GREP], [grep], [not_found], + [$PATH:/usr/bin:/usr/local/bin]) +if test -z "$GREP" || test "$GREP" = "not_found"; then + AC_MSG_ERROR([grep not found in PATH. Cannot continue without grep.]) +fi +AC_SUBST([GREP]) + +dnl EGREP is mandatory for configure process and libtool. +dnl Set it now, allowing it to be changed later. +if echo a | ($GREP -E '(a|b)') >/dev/null 2>&1; then + AC_MSG_CHECKING([for egrep]) + EGREP="$GREP -E" + AC_MSG_RESULT([$EGREP]) +else + AC_PATH_PROG([EGREP], [egrep], [not_found], + [$PATH:/usr/bin:/usr/local/bin]) +fi +if test -z "$EGREP" || test "$EGREP" = "not_found"; then + AC_MSG_ERROR([egrep not found in PATH. Cannot continue without egrep.]) +fi +AC_SUBST([EGREP]) + +dnl AR is mandatory for configure process and libtool. +dnl This is target dependent, so check it as a tool. +AC_PATH_TOOL([AR], [ar], [not_found], + [$PATH:/usr/bin:/usr/local/bin]) +if test -z "$AR" || test "$AR" = "not_found"; then + AC_MSG_ERROR([ar not found in PATH. Cannot continue without ar.]) +fi +AC_SUBST([AR]) + +AX_CODE_COVERAGE + +dnl Remove non-configure distributed ares_build.h +if test -f ${srcdir}/ares_build.h; then + rm -f ${srcdir}/ares_build.h +fi + +dnl +dnl Detect the canonical host and target build environment +dnl + +AC_CANONICAL_HOST +dnl Get system canonical name +AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS]) + +XC_CHECK_PROG_CC +AX_CXX_COMPILE_STDCXX_11([noext],[optional]) + +XC_AUTOMAKE + +dnl This defines _ALL_SOURCE for AIX +CARES_CHECK_AIX_ALL_SOURCE + +dnl Our configure and build reentrant settings +CARES_CONFIGURE_THREAD_SAFE +CARES_CONFIGURE_REENTRANT + +dnl check for how to do large files +AC_SYS_LARGEFILE + +case $host_os in + solaris*) + AC_DEFINE(ETC_INET, 1, [if a /etc/inet dir is being used]) + ;; +esac + +XC_LIBTOOL + +# +# Automake conditionals based on libtool related checks +# + +AM_CONDITIONAL([CARES_LT_SHLIB_USE_VERSION_INFO], + [test "x$xc_lt_shlib_use_version_info" = 'xyes']) +AM_CONDITIONAL([CARES_LT_SHLIB_USE_NO_UNDEFINED], + [test "x$xc_lt_shlib_use_no_undefined" = 'xyes']) +AM_CONDITIONAL([CARES_LT_SHLIB_USE_MIMPURE_TEXT], + [test "x$xc_lt_shlib_use_mimpure_text" = 'xyes']) + +# +# Due to libtool and automake machinery limitations of not allowing +# specifying separate CPPFLAGS or CFLAGS when compiling objects for +# inclusion of these in shared or static libraries, we are forced to +# build using separate configure runs for shared and static libraries +# on systems where different CPPFLAGS or CFLAGS are mandatory in order +# to compile objects for each kind of library. Notice that relying on +# the '-DPIC' CFLAG that libtool provides is not valid given that the +# user might for example choose to build static libraries with PIC. +# + +# +# Make our Makefile.am files use the staticlib CPPFLAG only when strictly +# targeting a static library and not building its shared counterpart. +# + +AM_CONDITIONAL([USE_CPPFLAG_CARES_STATICLIB], + [test "x$xc_lt_build_static_only" = 'xyes']) + +# +# Make staticlib CPPFLAG variable and its definition visible in output +# files unconditionally, providing an empty definition unless strictly +# targeting a static library and not building its shared counterpart. +# + +CPPFLAG_CARES_STATICLIB= +if test "x$xc_lt_build_static_only" = 'xyes'; then + CPPFLAG_CARES_STATICLIB='-DCARES_STATICLIB' +fi +AC_SUBST([CPPFLAG_CARES_STATICLIB]) + +dnl ********************************************************************** +dnl platform/compiler/architecture specific checks/flags +dnl ********************************************************************** + +CARES_CHECK_COMPILER +CARES_SET_COMPILER_BASIC_OPTS +CARES_SET_COMPILER_DEBUG_OPTS +CARES_SET_COMPILER_OPTIMIZE_OPTS +CARES_SET_COMPILER_WARNING_OPTS + +if test "$compiler_id" = "INTEL_UNIX_C"; then + # + if test "$compiler_num" -ge "1000"; then + dnl icc 10.X or later + CFLAGS="$CFLAGS -shared-intel" + elif test "$compiler_num" -ge "900"; then + dnl icc 9.X specific + CFLAGS="$CFLAGS -i-dynamic" + fi + # +fi + +CARES_CHECK_COMPILER_HALT_ON_ERROR +CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE +CARES_CHECK_COMPILER_PROTOTYPE_MISMATCH +CARES_CHECK_COMPILER_SYMBOL_HIDING + +CARES_CHECK_CURLDEBUG +AM_CONDITIONAL(CURLDEBUG, test x$want_curldebug = xyes) + +dnl ********************************************************************** +dnl Compilation based checks should not be done before this point. +dnl ********************************************************************** + +dnl ********************************************************************** +dnl Make sure that our checks for headers windows.h winsock.h winsock2.h +dnl and ws2tcpip.h take precedence over any other further checks which +dnl could be done later using AC_CHECK_HEADER or AC_CHECK_HEADERS for +dnl this specific header files. And do them before its results are used. +dnl ********************************************************************** + +CURL_CHECK_HEADER_WINDOWS +CURL_CHECK_NATIVE_WINDOWS +case X-"$ac_cv_native_windows" in + X-yes) + CURL_CHECK_HEADER_WINSOCK + CURL_CHECK_HEADER_WINSOCK2 + CURL_CHECK_HEADER_WS2TCPIP + ;; + *) + ac_cv_header_winsock_h="no" + ac_cv_header_winsock2_h="no" + ac_cv_header_ws2tcpip_h="no" + ;; +esac + +dnl ********************************************************************** +dnl Checks for libraries. +dnl ********************************************************************** + +CARES_CHECK_LIB_XNET + +dnl gethostbyname without lib or in the nsl lib? +AC_CHECK_FUNC(gethostbyname, + [HAVE_GETHOSTBYNAME="1" + ], + [ AC_CHECK_LIB(nsl, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lnsl" + ]) + ]) + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl gethostbyname in the socket lib? + AC_CHECK_LIB(socket, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lsocket" + ]) +fi + +dnl At least one system has been identified to require BOTH nsl and socket +dnl libs at the same time to link properly. +if test "$HAVE_GETHOSTBYNAME" != "1" +then + AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs]) + my_ac_save_LIBS=$LIBS + LIBS="-lnsl -lsocket $LIBS" + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + gethostbyname(); + ]]) + ],[ + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1" + ],[ + AC_MSG_RESULT([no]) + LIBS=$my_ac_save_LIBS + ]) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl This is for winsock systems + if test "$ac_cv_header_windows_h" = "yes"; then + if test "$ac_cv_header_winsock_h" = "yes"; then + case $host in + *-*-mingw32ce*) + winsock_LIB="-lwinsock" + ;; + *) + winsock_LIB="-lwsock32" + ;; + esac + fi + if test "$ac_cv_header_winsock2_h" = "yes"; then + winsock_LIB="-lws2_32" + fi + if test ! -z "$winsock_LIB"; then + my_ac_save_LIBS=$LIBS + LIBS="$winsock_LIB $LIBS" + AC_MSG_CHECKING([for gethostbyname in $winsock_LIB]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ +#ifdef HAVE_WINDOWS_H +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif +#include <windows.h> +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#else +#ifdef HAVE_WINSOCK_H +#include <winsock.h> +#endif +#endif +#endif + ]],[[ + gethostbyname("www.dummysite.com"); + ]]) + ],[ + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1" + ],[ + AC_MSG_RESULT([no]) + winsock_LIB="" + LIBS=$my_ac_save_LIBS + ]) + fi + fi +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl This is for Minix 3.1 + AC_MSG_CHECKING([for gethostbyname for Minix 3]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ +/* Older Minix versions may need <net/gen/netdb.h> here instead */ +#include <netdb.h> + ]],[[ + gethostbyname("www.dummysite.com"); + ]]) + ],[ + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1" + ],[ + AC_MSG_RESULT([no]) + ]) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl This is for eCos with a stubbed DNS implementation + AC_MSG_CHECKING([for gethostbyname for eCos]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ +#include <stdio.h> +#include <netdb.h> + ]],[[ + gethostbyname("www.dummysite.com"); + ]]) + ],[ + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1" + ],[ + AC_MSG_RESULT([no]) + ]) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl gethostbyname in the net lib - for BeOS + AC_CHECK_LIB(net, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lnet" + ]) +fi + + +if test "$HAVE_GETHOSTBYNAME" != "1"; then + AC_MSG_ERROR([couldn't find libraries for gethostbyname()]) +fi + +dnl resolv lib for iPhone +AS_IF([test "x$host_vendor" = "xapple"], [ + AC_MSG_CHECKING([for iPhone target]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#include "TargetConditionals.h" + ]], [[ +#if TARGET_OS_IPHONE == 0 +#error Not an iPhone target +#endif +return 0; + ]]) + ],[ + AC_MSG_RESULT([yes]) + AC_SEARCH_LIBS([res_servicename], [resolv], [ + AC_DEFINE([CARES_USE_LIBRESOLV], [1], [Use resolver library to configure cares]) + ], [ + AC_MSG_ERROR([Unable to find libresolv which is required for iPhone targets]) + ]) + ],[ + AC_MSG_RESULT([no]) + ]) +]) + +dnl resolve lib? +AC_CHECK_FUNC(strcasecmp, , [ AC_CHECK_LIB(resolve, strcasecmp) ]) + +if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then + AC_CHECK_LIB(resolve, strcasecmp, + [LIBS="-lresolve $LIBS"], + , + -lnsl) +fi +ac_cv_func_strcasecmp="no" + +CARES_CHECK_LIBS_CONNECT + +dnl iOS 10? +AS_IF([test "x$host_vendor" = "xapple"], [ + AC_MSG_CHECKING([for iOS minimum version 10 or later]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#include <stdio.h> +#include <TargetConditionals.h> + ]], [[ +#if TARGET_OS_IPHONE == 0 || __IPHONE_OS_VERSION_MIN_REQUIRED < 100000 +#error Not iOS 10 or later +#endif +return 0; + ]]) + ],[ + AC_MSG_RESULT([yes]) + ac_cv_ios_10="yes" + ],[ + AC_MSG_RESULT([no]) + ]) +]) + +dnl macOS 10.12? +AS_IF([test "x$host_vendor" = "xapple"], [ + AC_MSG_CHECKING([for macOS minimum version 10.12 or later]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#include <stdio.h> +#include <TargetConditionals.h> + ]], [[ +#ifndef MAC_OS_X_VERSION_10_12 +# define MAC_OS_X_VERSION_10_12 101200 +#endif +#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12 +#error Not macOS 10.12 or later +#endif +return 0; + ]]) + ],[ + AC_MSG_RESULT([yes]) + ac_cv_macos_10_12="yes" + ],[ + AC_MSG_RESULT([no]) + ]) +]) + +dnl ********************************************************************** +dnl In case that function clock_gettime with monotonic timer is available, +dnl check for additional required libraries. +dnl ********************************************************************** +dnl Xcode 8 bug: iOS when targeting less than 10, or macOS when targeting less than 10.12 will +dnl say clock_gettime exists, it is a weak symbol that only exists in iOS 10 or macOS 10.12 and will +dnl cause a crash at runtime when running on older versions. Skip finding CLOCK_MONOTONIC on older +dnl Apple OS's. +if test "x$host_vendor" != "xapple" || test "x$ac_cv_ios_10" = "xyes" || test "x$ac_cv_macos_10_12" = "xyes"; then + CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC +fi + +AC_MSG_CHECKING([whether to use libgcc]) +AC_ARG_ENABLE(libgcc, +AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]), +[ case "$enableval" in + yes) + LIBS="$LIBS -lgcc" + AC_MSG_RESULT(yes) + ;; + *) AC_MSG_RESULT(no) + ;; + esac ], + AC_MSG_RESULT(no) +) + + +dnl Let's hope this split URL remains working: +dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \ +dnl genprogc/thread_quick_ref.htm + + +dnl ********************************************************************** +dnl Back to "normal" configuring +dnl ********************************************************************** + +dnl Checks for header files. +AC_HEADER_STDC + +CURL_CHECK_HEADER_MALLOC +CURL_CHECK_HEADER_MEMORY + +dnl check for a few basic system headers we need +AC_CHECK_HEADERS( + sys/types.h \ + sys/time.h \ + sys/select.h \ + sys/socket.h \ + sys/ioctl.h \ + sys/param.h \ + sys/uio.h \ + assert.h \ + netdb.h \ + netinet/in.h \ + netinet/tcp.h \ + net/if.h \ + errno.h \ + socket.h \ + strings.h \ + stdbool.h \ + time.h \ + limits.h \ + arpa/nameser.h \ + arpa/nameser_compat.h \ + arpa/inet.h, +dnl to do if not found +[], +dnl to do if found +[], +dnl default includes +[ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +dnl We do this default-include simply to make sure that the nameser_compat.h +dnl header *REALLY* can be include after the new nameser.h. It seems AIX 5.1 +dnl (and others?) is not designed to allow this. +#ifdef HAVE_ARPA_NAMESER_H +#include <arpa/nameser.h> +#endif + +dnl *Sigh* these are needed in order for net/if.h to get properly detected. +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +] +) + +dnl Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST +AC_TYPE_SIZE_T +AC_HEADER_TIME +CURL_CHECK_STRUCT_TIMEVAL + +AC_CHECK_TYPE(long long, + [AC_DEFINE(HAVE_LONGLONG, 1, + [Define to 1 if the compiler supports the 'long long' data type.])] + longlong="yes" +) + +if test "xyes" = "x$longlong"; then + AC_MSG_CHECKING([if numberLL works]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + long long val = 1000LL; + ]]) + ],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_LL, 1, [if your compiler supports LL]) + ],[ + AC_MSG_RESULT([no]) + ]) +fi + + +# check for ssize_t +AC_CHECK_TYPE(ssize_t, , + AC_DEFINE(ssize_t, int, [the signed version of size_t])) + +# check for bool type +AC_CHECK_TYPE([bool],[ + AC_DEFINE(HAVE_BOOL_T, 1, + [Define to 1 if bool is an available type.]) +], ,[ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_STDBOOL_H +#include <stdbool.h> +#endif +]) + +CARES_CONFIGURE_ARES_SOCKLEN_T + +TYPE_IN_ADDR_T + +TYPE_SOCKADDR_STORAGE + +TYPE_SIG_ATOMIC_T + +AC_TYPE_SIGNAL + +CURL_CHECK_FUNC_RECV +CURL_CHECK_FUNC_RECVFROM +CURL_CHECK_FUNC_SEND +CURL_CHECK_MSG_NOSIGNAL + +CARES_CHECK_FUNC_CLOSESOCKET +CARES_CHECK_FUNC_CLOSESOCKET_CAMEL +CARES_CHECK_FUNC_CONNECT +CARES_CHECK_FUNC_FCNTL +CARES_CHECK_FUNC_FREEADDRINFO +CARES_CHECK_FUNC_GETADDRINFO +CARES_CHECK_FUNC_GETENV +CARES_CHECK_FUNC_GETHOSTBYADDR +CARES_CHECK_FUNC_GETHOSTBYNAME +CARES_CHECK_FUNC_GETHOSTNAME +CARES_CHECK_FUNC_GETSERVBYPORT_R +CARES_CHECK_FUNC_INET_NET_PTON +CARES_CHECK_FUNC_INET_NTOP +CARES_CHECK_FUNC_INET_PTON +CARES_CHECK_FUNC_IOCTL +CARES_CHECK_FUNC_IOCTLSOCKET +CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL +CARES_CHECK_FUNC_SETSOCKOPT +CARES_CHECK_FUNC_SOCKET +CARES_CHECK_FUNC_STRCASECMP +CARES_CHECK_FUNC_STRCMPI +CARES_CHECK_FUNC_STRDUP +CARES_CHECK_FUNC_STRICMP +CARES_CHECK_FUNC_STRNCASECMP +CARES_CHECK_FUNC_STRNCMPI +CARES_CHECK_FUNC_STRNICMP +CARES_CHECK_FUNC_WRITEV + + +dnl check for AF_INET6 +CARES_CHECK_CONSTANT( + [ +#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 +#endif + ], [PF_INET6], + AC_DEFINE_UNQUOTED(HAVE_PF_INET6,1,[Define to 1 if you have PF_INET6.]) +) + +dnl check for PF_INET6 +CARES_CHECK_CONSTANT( + [ +#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 +#endif + ], [AF_INET6], + AC_DEFINE_UNQUOTED(HAVE_AF_INET6,1,[Define to 1 if you have AF_INET6.]) +) + + +dnl check for the in6_addr structure +CARES_CHECK_STRUCT( + [ +#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_NETINET_IN_H +#include <netinet/in.h> +#endif +#endif + ], [in6_addr], + AC_DEFINE_UNQUOTED(HAVE_STRUCT_IN6_ADDR,1,[Define to 1 if you have struct in6_addr.]) +) + +dnl check for the sockaddr_in6 structure +CARES_CHECK_STRUCT( + [ +#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_NETINET_IN_H +#include <netinet/in.h> +#endif +#endif + ], [sockaddr_in6], + AC_DEFINE_UNQUOTED(HAVE_STRUCT_SOCKADDR_IN6,1, + [Define to 1 if you have struct sockaddr_in6.]) ac_have_sockaddr_in6=yes +) + +AC_CHECK_MEMBER(struct sockaddr_in6.sin6_scope_id, + AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1, + [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.]) + , , + [ +#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_NETINET_IN_H +#include <netinet/in.h> +#endif +#endif + ]) + +dnl check for the addrinfo structure +AC_CHECK_MEMBER(struct addrinfo.ai_flags, + AC_DEFINE_UNQUOTED(HAVE_STRUCT_ADDRINFO,1, + [Define to 1 if you have struct addrinfo.]),, + [ +#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_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif +#endif + ] +) + + +AC_CHECK_FUNCS([bitncmp \ + gettimeofday \ + if_indextoname +],[ +],[ + func="$ac_func" + AC_MSG_CHECKING([deeper for $func]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + $func (); + ]]) + ],[ + AC_MSG_RESULT([yes]) + eval "ac_cv_func_$func=yes" + AC_DEFINE_UNQUOTED(XC_SH_TR_CPP([HAVE_$func]), [1], + [Define to 1 if you have the $func function.]) + ],[ + AC_MSG_RESULT([but still no]) + ]) +]) + + +dnl Check if the getnameinfo function is available +dnl and get the types of five of its arguments. +CURL_CHECK_FUNC_GETNAMEINFO + + +AC_C_BIGENDIAN( + [AC_DEFINE(ARES_BIG_ENDIAN, 1, + [define this if ares is built for a big endian system])], + , + [AC_MSG_WARN([couldn't figure out endianess, assuming little endian!])] +) + +dnl Check for user-specified random device +AC_ARG_WITH(random, +AC_HELP_STRING([--with-random=FILE], + [read randomness from FILE (default=/dev/urandom)]), + [ RANDOM_FILE="$withval" ], + [ + dnl Check for random device. If we're cross compiling, we can't + dnl check, and it's better to assume it doesn't exist than it is + dnl to fail on AC_CHECK_FILE or later. + if test "$cross_compiling" = "no"; then + AC_CHECK_FILE("/dev/urandom", [ RANDOM_FILE="/dev/urandom"] ) + else + AC_MSG_WARN([cannot check for /dev/urandom while cross compiling; assuming none]) + fi + + ] +) +if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then + AC_SUBST(RANDOM_FILE) + AC_DEFINE_UNQUOTED(RANDOM_FILE, "$RANDOM_FILE", + [a suitable file/device to read random data from]) +fi + +CARES_CHECK_OPTION_NONBLOCKING +CARES_CHECK_NONBLOCKING_SOCKET + +CARES_CONFIGURE_SYMBOL_HIDING + +CARES_PRIVATE_LIBS="$LIBS" +AC_SUBST(CARES_PRIVATE_LIBS) + +CARES_CFLAG_EXTRAS="" +if test X"$want_werror" = Xyes; then + CARES_CFLAG_EXTRAS="-Werror" +fi +AC_SUBST(CARES_CFLAG_EXTRAS) + +dnl squeeze whitespace out of some variables + +squeeze CFLAGS +squeeze CPPFLAGS +squeeze DEFS +squeeze LDFLAGS +squeeze LIBS + +squeeze CARES_PRIVATE_LIBS + +XC_CHECK_BUILD_FLAGS + +AC_MSG_CHECKING([whether to build tests]) +AC_ARG_ENABLE(tests, + AC_HELP_STRING([--enable-tests], [build test suite]), + [ build_tests="$enableval" ], + [ if test "x$HAVE_CXX11" = "x1" && test "x$cross_compiling" = "xno" ; then + build_tests="yes" + else + build_tests="no" + fi + ] +) + +if test "x$build_tests" = "xyes" ; then + if test "x$HAVE_CXX11" = "0" ; then + AC_MSG_ERROR([*** Building tests requires a CXX11 compiler]) + fi + if test "x$cross_compiling" = "xyes" ; then + AC_MSG_ERROR([*** Tests not supported when cross compiling]) + fi +fi +AC_MSG_RESULT([$build_tests]) + +if test "x$build_tests" = "xyes" ; then + AC_CONFIG_SUBDIRS([test]) +fi + +AC_CONFIG_FILES([Makefile libcares.pc]) +AC_OUTPUT +XC_AMEND_DISTCLEAN(['.']) |