3 dnl Version not hardcoded here. Fetched later from ares_version.h
5 [c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares])
7 AC_CONFIG_SRCDIR([ares_ipv6.h])
8 AM_CONFIG_HEADER([config.h])
11 dnl SED is mandatory for configure process and libtool.
12 dnl Set it now, allowing it to be changed later.
13 AC_PATH_PROG([SED], [sed], [not_found],
14 [$PATH:/usr/bin:/usr/local/bin])
15 if test -z "$SED" || test "$SED" = "not_found"; then
16 AC_MSG_ERROR([sed not found in PATH. Cannot continue without sed.])
20 dnl GREP is mandatory for configure process and libtool.
21 dnl Set it now, allowing it to be changed later.
22 AC_PATH_PROG([GREP], [grep], [not_found],
23 [$PATH:/usr/bin:/usr/local/bin])
24 if test -z "$GREP" || test "$GREP" = "not_found"; then
25 AC_MSG_ERROR([grep not found in PATH. Cannot continue without grep.])
29 dnl EGREP is mandatory for configure process and libtool.
30 dnl Set it now, allowing it to be changed later.
31 if echo a | ($GREP -E '(a|b)') >/dev/null 2>&1; then
32 AC_MSG_CHECKING([for egrep])
34 AC_MSG_RESULT([$EGREP])
36 AC_PATH_PROG([EGREP], [egrep], [not_found],
37 [$PATH:/usr/bin:/usr/local/bin])
39 if test -z "$EGREP" || test "$EGREP" = "not_found"; then
40 AC_MSG_ERROR([egrep not found in PATH. Cannot continue without egrep.])
44 dnl AR is mandatory for configure process and libtool.
45 dnl This is target dependant, so check it as a tool.
46 AC_PATH_TOOL([AR], [ar], [not_found],
47 [$PATH:/usr/bin:/usr/local/bin])
48 if test -z "$AR" || test "$AR" = "not_found"; then
49 AC_MSG_ERROR([ar not found in PATH. Cannot continue without ar.])
53 dnl Fetch c-ares version from ares_version.h
54 VERSION=`$SED -ne 's/^#define ARES_VERSION_STR "\(.*\)"/\1/p' ${srcdir}/ares_version.h`
55 AM_INIT_AUTOMAKE([c-ares], [$VERSION])
56 AC_MSG_CHECKING([c-ares version])
57 AC_MSG_RESULT([$VERSION])
60 dnl Detect the canonical host and target build environment
64 dnl Get system canonical name
65 AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS])
71 dnl This defines _ALL_SOURCE for AIX
72 CARES_CHECK_AIX_ALL_SOURCE
74 dnl Our configure and build reentrant settings
75 CARES_CONFIGURE_REENTRANT
77 dnl check for how to do large files
82 AC_DEFINE(ETC_INET, 1, [if a /etc/inet dir is being used])
86 dnl support building of Windows DLLs
89 dnl ************************************************************
90 dnl Option to switch on debug options. This makes an assumption that
91 dnl this is built as an 'ares' subdir in the curl source tree. Subject for
92 dnl improval in the future!
94 AC_MSG_CHECKING([whether to enable debug options])
96 AC_HELP_STRING([--enable-debug],[Enable pedantic debug options])
97 AC_HELP_STRING([--disable-debug],[Disable debug options]),
98 [ case "$enableval" in
102 *) AC_MSG_RESULT(yes)
104 dnl when doing the debug stuff, use static library only
109 dnl the entire --enable-debug is a hack that lives and runs on top of
110 dnl libcurl stuff so this BUILDING_LIBCURL is not THAT much uglier
111 AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl])
113 CPPFLAGS="$CPPFLAGS -DCURLDEBUG -I$srcdir/../include"
116 dnl set compiler "debug" options to become more picky, and remove
117 dnl optimize options from CFLAGS
124 AM_CONDITIONAL(DEBUGBUILD, test x$debugbuild = xyes)
125 AM_CONDITIONAL(CURLDEBUG, test x$debugbuild = xyes)
127 dnl skip libtool C++ and Fortran compiler checks
128 m4_ifdef([AC_PROG_CXX], [m4_undefine([AC_PROG_CXX])])
129 m4_defun([AC_PROG_CXX],[])
130 m4_ifdef([AC_PROG_CXXCPP], [m4_undefine([AC_PROG_CXXCPP])])
131 m4_defun([AC_PROG_CXXCPP],[true])
132 m4_ifdef([AC_PROG_F77], [m4_undefine([AC_PROG_F77])])
133 m4_defun([AC_PROG_F77],[])
135 dnl skip libtool C++ and Fortran linker checks
136 m4_ifdef([AC_LIBTOOL_CXX], [m4_undefine([AC_LIBTOOL_CXX])])
137 m4_defun([AC_LIBTOOL_CXX],[])
138 m4_ifdef([AC_LIBTOOL_CXXCPP], [m4_undefine([AC_LIBTOOL_CXXCPP])])
139 m4_defun([AC_LIBTOOL_CXXCPP],[true])
140 m4_ifdef([AC_LIBTOOL_F77], [m4_undefine([AC_LIBTOOL_F77])])
141 m4_defun([AC_LIBTOOL_F77],[])
143 dnl force libtool to build static libraries with PIC on AMD64-linux
144 AC_MSG_CHECKING([if arch-OS host is AMD64-linux (to build static libraries with PIC)])
158 AC_MSG_CHECKING([if we need -no-undefined])
160 *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
161 need_no_undefined=yes
167 AC_MSG_RESULT($need_no_undefined)
168 AM_CONDITIONAL(NO_UNDEFINED, test x$need_no_undefined = xyes)
170 dnl **********************************************************************
171 dnl platform/compiler/architecture specific checks/flags
172 dnl **********************************************************************
178 dnl find out if icc is being used
179 if test "z$ICC" = "z"; then
183 if test "$ICC" = "yes"; then
184 dnl figure out icc version
185 AC_MSG_CHECKING([icc version])
186 iccver=`$CC -dumpversion`
187 iccnhi=`echo $iccver | cut -d . -f1`
188 iccnlo=`echo $iccver | cut -d . -f2`
189 iccnum=`(expr $iccnhi "*" 100 + $iccnlo) 2>/dev/null`
190 AC_MSG_RESULT($iccver)
192 if test "$iccnum" -ge "900" && test "$iccnum" -lt "1000"; then
194 CFLAGS="$CFLAGS -i-dynamic"
197 if test "$iccnum" -ge "1000"; then
198 dnl icc 10.X or later
199 CFLAGS="$CFLAGS -shared-intel"
207 AC_MSG_CHECKING([whether we are using the IBM C compiler])
208 CURL_CHECK_DEF([__IBMC__], [], [silent])
209 if test "$curl_cv_have_def___IBMC__" = "yes"; then
211 dnl Ensure that compiler optimizations are always thread-safe.
212 CFLAGS="$CFLAGS -qthreaded"
213 dnl Disable type based strict aliasing optimizations, using worst
214 dnl case aliasing assumptions when compiling. Type based aliasing
215 dnl would restrict the lvalues that could be safely used to access
217 CFLAGS="$CFLAGS -qnoansialias"
218 dnl Force compiler to stop after the compilation phase, without
219 dnl generating an object code file when compilation has errors.
220 CFLAGS="$CFLAGS -qhalt=e"
225 AC_MSG_CHECKING([whether we are using the Intel C compiler])
226 CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
227 if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
229 dnl On Linux this compiler uses gcc's header files, so
230 dnl we select ANSI C89 dialect plus GNU extensions.
231 CPPFLAGS="$CPPFLAGS -std=gnu89"
232 if test "$curl_cv_def___INTEL_COMPILER" -gt "600"; then
233 dnl Show errors, warnings, and remarks
234 CPPFLAGS="$CPPFLAGS -Wall"
235 dnl Perform extra compile-time code checking
236 CPPFLAGS="$CPPFLAGS -Wcheck"
238 dnl Change some warnings into errors
239 dnl #140: too many arguments in function call
240 dnl #147: declaration is incompatible with 'previous one'
241 dnl #165: too few arguments in function call
242 dnl #266: function declared implicitly
243 CPPFLAGS="$CPPFLAGS -we 140,147,165,266"
244 dnl Disable use of ANSI C aliasing rules in optimizations
245 CFLAGS="$CFLAGS -no-ansi-alias"
250 AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
251 CURL_CHECK_DEF([__DECC], [], [silent])
252 CURL_CHECK_DEF([__DECC_VER], [], [silent])
253 if test "$curl_cv_have_def___DECC" = "yes" &&
254 test "$curl_cv_have_def___DECC_VER" = "yes"; then
256 dnl Select strict ANSI C compiler mode
257 CFLAGS="$CFLAGS -std1"
258 dnl Turn off optimizer ANSI C aliasing rules
259 CFLAGS="$CFLAGS -noansi_alias"
260 dnl Select a higher warning level than default level2
261 CFLAGS="$CFLAGS -msg_enable level3"
262 dnl Generate warnings for missing function prototypes
263 CFLAGS="$CFLAGS -warnprotos"
264 dnl Change some warnings into fatal errors
265 CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
270 CURL_CHECK_COMPILER_HALT_ON_ERROR
271 CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
273 dnl **********************************************************************
274 dnl Compilation based checks should not be done before this point.
275 dnl **********************************************************************
277 dnl **********************************************************************
278 dnl Make sure that our checks for headers windows.h winsock.h winsock2.h
279 dnl and ws2tcpip.h take precedence over any other further checks which
280 dnl could be done later using AC_CHECK_HEADER or AC_CHECK_HEADERS for
281 dnl this specific header files. And do them before its results are used.
282 dnl **********************************************************************
284 CURL_CHECK_HEADER_WINDOWS
285 CURL_CHECK_NATIVE_WINDOWS
286 case X-"$ac_cv_native_windows" in
288 CURL_CHECK_HEADER_WINSOCK
289 CURL_CHECK_HEADER_WINSOCK2
290 CURL_CHECK_HEADER_WS2TCPIP
293 ac_cv_header_winsock_h="no"
294 ac_cv_header_winsock2_h="no"
295 ac_cv_header_ws2tcpip_h="no"
299 dnl **********************************************************************
300 dnl Checks for libraries.
301 dnl **********************************************************************
303 dnl gethostbyname without lib or in the nsl lib?
304 AC_CHECK_FUNC(gethostbyname,
305 [HAVE_GETHOSTBYNAME="1"
307 [ AC_CHECK_LIB(nsl, gethostbyname,
308 [HAVE_GETHOSTBYNAME="1"
313 if test "$HAVE_GETHOSTBYNAME" != "1"
315 dnl gethostbyname in the socket lib?
316 AC_CHECK_LIB(socket, gethostbyname,
317 [HAVE_GETHOSTBYNAME="1"
318 LIBS="$LIBS -lsocket"
322 dnl At least one system has been identified to require BOTH nsl and socket
323 dnl libs at the same time to link properly.
324 if test "$HAVE_GETHOSTBYNAME" != "1"
326 AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs])
327 my_ac_save_LIBS=$LIBS
328 LIBS="-lnsl -lsocket $LIBS"
336 HAVE_GETHOSTBYNAME="1"
339 LIBS=$my_ac_save_LIBS
343 if test "$HAVE_GETHOSTBYNAME" != "1"
345 dnl This is for winsock systems
346 if test "$ac_cv_header_windows_h" = "yes"; then
347 if test "$ac_cv_header_winsock_h" = "yes"; then
350 winsock_LIB="-lwinsock"
353 winsock_LIB="-lwsock32"
357 if test "$ac_cv_header_winsock2_h" = "yes"; then
358 winsock_LIB="-lws2_32"
360 if test ! -z "$winsock_LIB"; then
361 my_ac_save_LIBS=$LIBS
362 LIBS="$winsock_LIB $LIBS"
363 AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
366 #ifdef HAVE_WINDOWS_H
367 #ifndef WIN32_LEAN_AND_MEAN
368 #define WIN32_LEAN_AND_MEAN
371 #ifdef HAVE_WINSOCK2_H
372 #include <winsock2.h>
374 #ifdef HAVE_WINSOCK_H
380 gethostbyname("www.dummysite.com");
384 HAVE_GETHOSTBYNAME="1"
388 LIBS=$my_ac_save_LIBS
394 if test "$HAVE_GETHOSTBYNAME" != "1"
396 dnl This is for Minix 3.1
397 AC_MSG_CHECKING([for gethostbyname for Minix 3])
400 /* Older Minix versions may need <net/gen/netdb.h> here instead */
403 gethostbyname("www.dummysite.com");
407 HAVE_GETHOSTBYNAME="1"
413 if test "$HAVE_GETHOSTBYNAME" != "1"
415 dnl This is for eCos with a stubbed DNS implementation
416 AC_MSG_CHECKING([for gethostbyname for eCos])
422 gethostbyname("www.dummysite.com");
426 HAVE_GETHOSTBYNAME="1"
432 if test "$HAVE_GETHOSTBYNAME" != "1"
434 dnl gethostbyname in the net lib - for BeOS
435 AC_CHECK_LIB(net, gethostbyname,
436 [HAVE_GETHOSTBYNAME="1"
442 if test "$HAVE_GETHOSTBYNAME" = "1"; then
443 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [If you have gethostbyname])
445 AC_MSG_ERROR([couldn't find libraries for gethostbyname()])
449 AC_CHECK_FUNC(strcasecmp, , [ AC_CHECK_LIB(resolve, strcasecmp) ])
451 if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then
452 AC_CHECK_LIB(resolve, strcasecmp,
453 [LIBS="-lresolve $LIBS"],
457 ac_cv_func_strcasecmp="no"
460 AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])
462 dnl **********************************************************************
463 dnl In case that function clock_gettime with monotonic timer is available,
464 dnl check for additional required libraries.
465 dnl **********************************************************************
466 CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
468 AC_MSG_CHECKING([whether to use libgcc])
469 AC_ARG_ENABLE(libgcc,
470 AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]),
471 [ case "$enableval" in
483 dnl Default is to try the thread-safe versions of a few functions
486 dnl detect AIX 4.3 or later
487 AC_MSG_CHECKING([AIX 4.3 or later])
489 #if defined(_AIX) && defined(_AIX43)
492 #error "this is not AIX 4.3 or later"
495 [ AC_MSG_RESULT([yes])
498 [ AC_MSG_RESULT([no]) ]
501 AC_ARG_ENABLE(thread,dnl
502 AC_HELP_STRING([--disable-thread],[don't look for thread-safe functions])
503 AC_HELP_STRING([--enable-thread],[look for thread-safe functions]),
504 [ case "$enableval" in
507 AC_MSG_WARN(c-ares will not get built using thread-safe functions)
515 if test X"$OPT_THREAD" = Xoff
517 AC_DEFINE(DISABLED_THREADSAFE, 1,
518 [Set to explicitly specify we don't want to use thread-safe functions])
521 dnl for recent AIX versions, we skip all the thread-safe checks above since
522 dnl they claim a thread-safe libc using the standard API. But there are
523 dnl some functions still not thread-safe. Check for these!
525 dnl Let's hope this split URL remains working:
526 dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
527 dnl genprogc/thread_quick_ref.htm
529 if test "x$RECENTAIX" = "xyes"; then
531 AC_DEFINE(_THREAD_SAFE, 1, [define this if you need it to compile thread-safe code])
536 dnl **********************************************************************
537 dnl Back to "normal" configuring
538 dnl **********************************************************************
540 dnl Checks for header files.
543 CURL_CHECK_HEADER_MALLOC
545 dnl check for a few basic system headers we need
563 arpa/nameser_compat.h \
565 dnl to do if not found
571 #ifdef HAVE_SYS_TYPES_H
572 #include <sys/types.h>
574 #ifdef HAVE_SYS_TIME_H
575 #include <sys/time.h>
577 dnl We do this default-include simply to make sure that the nameser_compat.h
578 dnl header *REALLY* can be include after the new nameser.h. It seems AIX 5.1
579 dnl (and others?) is not designed to allow this.
580 #ifdef HAVE_ARPA_NAMESER_H
581 #include <arpa/nameser.h>
584 dnl *Sigh* these are needed in order for net/if.h to get properly detected.
585 #ifdef HAVE_SYS_SOCKET_H
586 #include <sys/socket.h>
588 #ifdef HAVE_NETINET_IN_H
589 #include <netinet/in.h>
594 dnl Checks for typedefs, structures, and compiler characteristics.
598 CURL_CHECK_STRUCT_TIMEVAL
600 AC_CHECK_SIZEOF(size_t)
601 AC_CHECK_SIZEOF(long)
602 AC_CHECK_SIZEOF(time_t)
604 AC_CHECK_TYPE(long long,
605 [AC_DEFINE(HAVE_LONGLONG, 1,
606 [Define to 1 if the compiler supports the 'long long' data type.])]
610 if test "xyes" = "x$longlong"; then
611 AC_MSG_CHECKING([if numberLL works])
612 AC_COMPILE_IFELSE([long long val = 1000LL;],
613 [AC_DEFINE(HAVE_LL, 1, [if your compiler supports LL])]
621 AC_CHECK_TYPE(ssize_t, ,
622 AC_DEFINE(ssize_t, int, [the signed version of size_t]))
624 # check for bool type
625 AC_CHECK_TYPE([bool],[
626 AC_DEFINE(HAVE_BOOL_T, 1,
627 [Define to 1 if bool is an available type.])
629 #ifdef HAVE_SYS_TYPES_H
630 #include <sys/types.h>
632 #ifdef HAVE_STDBOOL_H
637 # Check for socklen_t or equivalent
638 CURL_CHECK_TYPE_SOCKLEN_T
642 TYPE_SOCKADDR_STORAGE
649 CURL_CHECK_FUNC_RECVFROM
651 CURL_CHECK_MSG_NOSIGNAL
653 CARES_CHECK_FUNC_GETHOSTNAME
654 CARES_CHECK_FUNC_GETSERVBYPORT_R
655 CARES_CHECK_FUNC_STRCASECMP
656 CARES_CHECK_FUNC_STRCMPI
657 CARES_CHECK_FUNC_STRDUP
658 CARES_CHECK_FUNC_STRICMP
659 CARES_CHECK_FUNC_STRNCASECMP
660 CARES_CHECK_FUNC_STRNCMPI
661 CARES_CHECK_FUNC_STRNICMP
662 CARES_CHECK_FUNC_WRITEV
665 dnl check for AF_INET6
666 CARES_CHECK_CONSTANT(
669 #ifdef HAVE_WINDOWS_H
670 #ifndef WIN32_LEAN_AND_MEAN
671 #define WIN32_LEAN_AND_MEAN
674 #ifdef HAVE_WINSOCK2_H
675 #include <winsock2.h>
678 #ifdef HAVE_SYS_TYPES_H
679 #include <sys/types.h>
681 #ifdef HAVE_SYS_SOCKET_H
682 #include <sys/socket.h>
686 AC_DEFINE_UNQUOTED(HAVE_PF_INET6,1,[Define to 1 if you have PF_INET6.])
689 dnl check for PF_INET6
690 CARES_CHECK_CONSTANT(
693 #ifdef HAVE_WINDOWS_H
694 #ifndef WIN32_LEAN_AND_MEAN
695 #define WIN32_LEAN_AND_MEAN
698 #ifdef HAVE_WINSOCK2_H
699 #include <winsock2.h>
702 #ifdef HAVE_SYS_TYPES_H
703 #include <sys/types.h>
705 #ifdef HAVE_SYS_SOCKET_H
706 #include <sys/socket.h>
710 AC_DEFINE_UNQUOTED(HAVE_AF_INET6,1,[Define to 1 if you have AF_INET6.])
714 dnl check for the in6_addr structure
718 #ifdef HAVE_WINDOWS_H
719 #ifndef WIN32_LEAN_AND_MEAN
720 #define WIN32_LEAN_AND_MEAN
723 #ifdef HAVE_WINSOCK2_H
724 #include <winsock2.h>
725 #ifdef HAVE_WS2TCPIP_H
726 #include <ws2tcpip.h>
730 #ifdef HAVE_SYS_TYPES_H
731 #include <sys/types.h>
733 #ifdef HAVE_NETINET_IN_H
734 #include <netinet/in.h>
738 AC_DEFINE_UNQUOTED(HAVE_STRUCT_IN6_ADDR,1,[Define to 1 if you have struct in6_addr.])
741 dnl check for the sockaddr_in6 structure
745 #ifdef HAVE_WINDOWS_H
746 #ifndef WIN32_LEAN_AND_MEAN
747 #define WIN32_LEAN_AND_MEAN
750 #ifdef HAVE_WINSOCK2_H
751 #include <winsock2.h>
752 #ifdef HAVE_WS2TCPIP_H
753 #include <ws2tcpip.h>
757 #ifdef HAVE_SYS_TYPES_H
758 #include <sys/types.h>
760 #ifdef HAVE_NETINET_IN_H
761 #include <netinet/in.h>
765 AC_DEFINE_UNQUOTED(HAVE_STRUCT_SOCKADDR_IN6,1,
766 [Define to 1 if you have struct sockaddr_in6.]) ac_have_sockaddr_in6=yes
769 AC_CHECK_MEMBER(struct sockaddr_in6.sin6_scope_id,
770 AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1,
771 [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.])
775 #ifdef HAVE_WINDOWS_H
776 #ifndef WIN32_LEAN_AND_MEAN
777 #define WIN32_LEAN_AND_MEAN
780 #ifdef HAVE_WINSOCK2_H
781 #include <winsock2.h>
782 #ifdef HAVE_WS2TCPIP_H
783 #include <ws2tcpip.h>
787 #ifdef HAVE_SYS_TYPES_H
788 #include <sys/types.h>
790 #ifdef HAVE_NETINET_IN_H
791 #include <netinet/in.h>
796 dnl check for the addrinfo structure
797 AC_CHECK_MEMBER(struct addrinfo.ai_flags,
798 AC_DEFINE_UNQUOTED(HAVE_STRUCT_ADDRINFO,1,
799 [Define to 1 if you have struct addrinfo.]),,
802 #ifdef HAVE_WINDOWS_H
803 #ifndef WIN32_LEAN_AND_MEAN
804 #define WIN32_LEAN_AND_MEAN
807 #ifdef HAVE_WINSOCK2_H
808 #include <winsock2.h>
809 #ifdef HAVE_WS2TCPIP_H
810 #include <ws2tcpip.h>
814 #ifdef HAVE_SYS_TYPES_H
815 #include <sys/types.h>
817 #ifdef HAVE_NETINET_IN_H
818 #include <netinet/in.h>
820 #ifdef HAVE_SYS_SOCKET_H
821 #include <sys/socket.h>
831 AC_CHECK_FUNCS([bitncmp \
837 AC_MSG_CHECKING([deeper for $func])
845 eval "ac_cv_func_$func=yes"
846 AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
847 [Define to 1 if you have the $func function.])
849 AC_MSG_RESULT([but still no])
854 dnl check for inet_pton
855 AC_CHECK_FUNCS(inet_pton)
856 dnl Some systems have it, but not IPv6
857 if test "$ac_cv_func_inet_pton" = "yes" ; then
858 AC_MSG_CHECKING(if inet_pton supports IPv6)
861 #ifdef HAVE_SYS_TYPES_H
862 #include <sys/types.h>
864 #ifdef HAVE_SYS_SOCKET_H
865 #include <sys/socket.h>
867 #ifdef HAVE_NETINET_IN_H
868 #include <netinet/in.h>
872 struct in6_addr addr6;
873 if (inet_pton(AF_INET6, "::1", &addr6) < 1)
880 AC_DEFINE_UNQUOTED(HAVE_INET_PTON_IPV6,1,[Define to 1 if inet_pton supports IPv6.])
881 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
883 dnl Check for inet_net_pton
884 AC_CHECK_FUNCS(inet_net_pton)
885 dnl Again, some systems have it, but not IPv6
886 if test "$ac_cv_func_inet_net_pton" = "yes" ; then
887 AC_MSG_CHECKING(if inet_net_pton supports IPv6)
890 #ifdef HAVE_SYS_TYPES_H
891 #include <sys/types.h>
893 #ifdef HAVE_SYS_SOCKET_H
894 #include <sys/socket.h>
896 #ifdef HAVE_NETINET_IN_H
897 #include <netinet/in.h>
901 struct in6_addr addr6;
902 if (inet_net_pton(AF_INET6, "::1", &addr6, sizeof(addr6)) < 1)
909 AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON_IPV6,1,[Define to 1 if inet_net_pton supports IPv6.])
910 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
914 dnl Check for inet_ntop
915 AC_CHECK_FUNCS(inet_ntop)
916 dnl Again, some systems have it, but not IPv6
917 if test "$ac_cv_func_inet_ntop" = "yes" ; then
918 AC_MSG_CHECKING(if inet_ntop supports IPv6)
921 #ifdef HAVE_SYS_TYPES_H
922 #include <sys/types.h>
924 #ifdef HAVE_SYS_SOCKET_H
925 #include <sys/socket.h>
927 #ifdef HAVE_NETINET_IN_H
928 #include <netinet/in.h>
933 struct in6_addr addr6;
935 if (inet_ntop(AF_INET6, &addr6, buf, 128) == 0 && errno == EAFNOSUPPORT)
942 AC_DEFINE_UNQUOTED(HAVE_INET_NTOP_IPV6,1,
943 [Define to 1 if inet_ntop supports IPv6.])
944 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
947 AC_CHECK_SIZEOF(struct in6_addr, ,
950 #ifdef HAVE_WINDOWS_H
951 #ifndef WIN32_LEAN_AND_MEAN
952 #define WIN32_LEAN_AND_MEAN
955 #ifdef HAVE_WINSOCK2_H
956 #include <winsock2.h>
957 #ifdef HAVE_WS2TCPIP_H
958 #include <ws2tcpip.h>
962 #ifdef HAVE_SYS_TYPES_H
963 #include <sys/types.h>
965 #ifdef HAVE_SYS_SOCKET_H
966 #include <sys/socket.h>
968 #ifdef HAVE_NETINET_IN_H
969 #include <netinet/in.h>
975 AC_CHECK_SIZEOF(struct in_addr, ,
978 #ifdef HAVE_WINDOWS_H
979 #ifndef WIN32_LEAN_AND_MEAN
980 #define WIN32_LEAN_AND_MEAN
983 #ifdef HAVE_WINSOCK2_H
984 #include <winsock2.h>
985 #ifdef HAVE_WS2TCPIP_H
986 #include <ws2tcpip.h>
990 #ifdef HAVE_SYS_TYPES_H
991 #include <sys/types.h>
993 #ifdef HAVE_SYS_SOCKET_H
994 #include <sys/socket.h>
996 #ifdef HAVE_NETINET_IN_H
997 #include <netinet/in.h>
1004 dnl Check if the getnameinfo function is available
1005 dnl and get the types of five of its arguments.
1006 CURL_CHECK_FUNC_GETNAMEINFO
1009 CURL_CHECK_NONBLOCKING_SOCKET
1012 [AC_DEFINE(ARES_BIG_ENDIAN, 1,
1013 [define this if ares is built for a big endian system])],
1015 [AC_MSG_WARN([couldn't figure out endianess, assuming little endian!])]
1018 dnl Check for user-specified random device
1020 AC_HELP_STRING([--with-random=FILE],
1021 [read randomness from FILE (default=/dev/urandom)]),
1022 [ RANDOM_FILE="$withval" ],
1024 dnl Check for random device. If we're cross compiling, we can't
1025 dnl check, and it's better to assume it doesn't exist than it is
1026 dnl to fail on AC_CHECK_FILE or later.
1027 if test "$cross_compiling" = "no"; then
1028 AC_CHECK_FILE("/dev/urandom", [ RANDOM_FILE="/dev/urandom"] )
1030 AC_MSG_WARN([cannot check for /dev/urandom while cross compiling; assuming none])
1035 if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then
1036 AC_SUBST(RANDOM_FILE)
1037 AC_DEFINE_UNQUOTED(RANDOM_FILE, "$RANDOM_FILE",
1038 [a suitable file/device to read random data from])
1041 CARES_PRIVATE_LIBS="$LIBS"
1042 AC_SUBST(CARES_PRIVATE_LIBS)
1044 AC_CONFIG_FILES([Makefile libcares.pc])