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="$CPPFLAGS -we 140,147,165,266"
244 dnl Disable some remarks
245 dnl #981: operands are evaluated in unspecified order
246 dnl #1469: "cc" clobber ignored
247 CPPFLAGS="$CPPFLAGS -wd 981,1469"
248 dnl Disable use of ANSI C aliasing rules in optimizations
249 CFLAGS="$CFLAGS -no-ansi-alias"
254 AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
255 CURL_CHECK_DEF([__DECC], [], [silent])
256 CURL_CHECK_DEF([__DECC_VER], [], [silent])
257 if test "$curl_cv_have_def___DECC" = "yes" &&
258 test "$curl_cv_have_def___DECC_VER" = "yes"; then
260 dnl Select strict ANSI C compiler mode
261 CFLAGS="$CFLAGS -std1"
262 dnl Turn off optimizer ANSI C aliasing rules
263 CFLAGS="$CFLAGS -noansi_alias"
264 dnl Select a higher warning level than default level2
265 CFLAGS="$CFLAGS -msg_enable level3"
266 dnl Generate warnings for missing function prototypes
267 CFLAGS="$CFLAGS -warnprotos"
268 dnl Change some warnings into fatal errors
269 CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
274 CURL_CHECK_COMPILER_HALT_ON_ERROR
275 CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
277 dnl **********************************************************************
278 dnl Compilation based checks should not be done before this point.
279 dnl **********************************************************************
281 dnl **********************************************************************
282 dnl Make sure that our checks for headers windows.h winsock.h winsock2.h
283 dnl and ws2tcpip.h take precedence over any other further checks which
284 dnl could be done later using AC_CHECK_HEADER or AC_CHECK_HEADERS for
285 dnl this specific header files. And do them before its results are used.
286 dnl **********************************************************************
288 CURL_CHECK_HEADER_WINDOWS
289 CURL_CHECK_NATIVE_WINDOWS
290 case X-"$ac_cv_native_windows" in
292 CURL_CHECK_HEADER_WINSOCK
293 CURL_CHECK_HEADER_WINSOCK2
294 CURL_CHECK_HEADER_WS2TCPIP
297 ac_cv_header_winsock_h="no"
298 ac_cv_header_winsock2_h="no"
299 ac_cv_header_ws2tcpip_h="no"
303 dnl **********************************************************************
304 dnl Checks for libraries.
305 dnl **********************************************************************
307 dnl gethostbyname without lib or in the nsl lib?
308 AC_CHECK_FUNC(gethostbyname,
309 [HAVE_GETHOSTBYNAME="1"
311 [ AC_CHECK_LIB(nsl, gethostbyname,
312 [HAVE_GETHOSTBYNAME="1"
317 if test "$HAVE_GETHOSTBYNAME" != "1"
319 dnl gethostbyname in the socket lib?
320 AC_CHECK_LIB(socket, gethostbyname,
321 [HAVE_GETHOSTBYNAME="1"
322 LIBS="$LIBS -lsocket"
326 dnl At least one system has been identified to require BOTH nsl and socket
327 dnl libs at the same time to link properly.
328 if test "$HAVE_GETHOSTBYNAME" != "1"
330 AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs])
331 my_ac_save_LIBS=$LIBS
332 LIBS="-lnsl -lsocket $LIBS"
340 HAVE_GETHOSTBYNAME="1"
343 LIBS=$my_ac_save_LIBS
347 if test "$HAVE_GETHOSTBYNAME" != "1"
349 dnl This is for winsock systems
350 if test "$ac_cv_header_windows_h" = "yes"; then
351 if test "$ac_cv_header_winsock_h" = "yes"; then
354 winsock_LIB="-lwinsock"
357 winsock_LIB="-lwsock32"
361 if test "$ac_cv_header_winsock2_h" = "yes"; then
362 winsock_LIB="-lws2_32"
364 if test ! -z "$winsock_LIB"; then
365 my_ac_save_LIBS=$LIBS
366 LIBS="$winsock_LIB $LIBS"
367 AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
370 #ifdef HAVE_WINDOWS_H
371 #ifndef WIN32_LEAN_AND_MEAN
372 #define WIN32_LEAN_AND_MEAN
375 #ifdef HAVE_WINSOCK2_H
376 #include <winsock2.h>
378 #ifdef HAVE_WINSOCK_H
384 gethostbyname("www.dummysite.com");
388 HAVE_GETHOSTBYNAME="1"
392 LIBS=$my_ac_save_LIBS
398 if test "$HAVE_GETHOSTBYNAME" != "1"
400 dnl This is for Minix 3.1
401 AC_MSG_CHECKING([for gethostbyname for Minix 3])
404 /* Older Minix versions may need <net/gen/netdb.h> here instead */
407 gethostbyname("www.dummysite.com");
411 HAVE_GETHOSTBYNAME="1"
417 if test "$HAVE_GETHOSTBYNAME" != "1"
419 dnl This is for eCos with a stubbed DNS implementation
420 AC_MSG_CHECKING([for gethostbyname for eCos])
426 gethostbyname("www.dummysite.com");
430 HAVE_GETHOSTBYNAME="1"
436 if test "$HAVE_GETHOSTBYNAME" != "1"
438 dnl gethostbyname in the net lib - for BeOS
439 AC_CHECK_LIB(net, gethostbyname,
440 [HAVE_GETHOSTBYNAME="1"
446 if test "$HAVE_GETHOSTBYNAME" = "1"; then
447 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [If you have gethostbyname])
449 AC_MSG_ERROR([couldn't find libraries for gethostbyname()])
453 AC_CHECK_FUNC(strcasecmp, , [ AC_CHECK_LIB(resolve, strcasecmp) ])
455 if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then
456 AC_CHECK_LIB(resolve, strcasecmp,
457 [LIBS="-lresolve $LIBS"],
461 ac_cv_func_strcasecmp="no"
464 AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])
466 dnl **********************************************************************
467 dnl In case that function clock_gettime with monotonic timer is available,
468 dnl check for additional required libraries.
469 dnl **********************************************************************
470 CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
472 AC_MSG_CHECKING([whether to use libgcc])
473 AC_ARG_ENABLE(libgcc,
474 AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]),
475 [ case "$enableval" in
487 dnl Default is to try the thread-safe versions of a few functions
490 dnl detect AIX 4.3 or later
491 AC_MSG_CHECKING([AIX 4.3 or later])
493 #if defined(_AIX) && defined(_AIX43)
496 #error "this is not AIX 4.3 or later"
499 [ AC_MSG_RESULT([yes])
502 [ AC_MSG_RESULT([no]) ]
505 AC_ARG_ENABLE(thread,dnl
506 AC_HELP_STRING([--disable-thread],[don't look for thread-safe functions])
507 AC_HELP_STRING([--enable-thread],[look for thread-safe functions]),
508 [ case "$enableval" in
511 AC_MSG_WARN(c-ares will not get built using thread-safe functions)
519 if test X"$OPT_THREAD" = Xoff
521 AC_DEFINE(DISABLED_THREADSAFE, 1,
522 [Set to explicitly specify we don't want to use thread-safe functions])
525 dnl for recent AIX versions, we skip all the thread-safe checks above since
526 dnl they claim a thread-safe libc using the standard API. But there are
527 dnl some functions still not thread-safe. Check for these!
529 dnl Let's hope this split URL remains working:
530 dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
531 dnl genprogc/thread_quick_ref.htm
533 if test "x$RECENTAIX" = "xyes"; then
535 AC_DEFINE(_THREAD_SAFE, 1, [define this if you need it to compile thread-safe code])
540 dnl **********************************************************************
541 dnl Back to "normal" configuring
542 dnl **********************************************************************
544 dnl Checks for header files.
547 CURL_CHECK_HEADER_MALLOC
549 dnl check for a few basic system headers we need
567 arpa/nameser_compat.h \
569 dnl to do if not found
575 #ifdef HAVE_SYS_TYPES_H
576 #include <sys/types.h>
578 #ifdef HAVE_SYS_TIME_H
579 #include <sys/time.h>
581 dnl We do this default-include simply to make sure that the nameser_compat.h
582 dnl header *REALLY* can be include after the new nameser.h. It seems AIX 5.1
583 dnl (and others?) is not designed to allow this.
584 #ifdef HAVE_ARPA_NAMESER_H
585 #include <arpa/nameser.h>
588 dnl *Sigh* these are needed in order for net/if.h to get properly detected.
589 #ifdef HAVE_SYS_SOCKET_H
590 #include <sys/socket.h>
592 #ifdef HAVE_NETINET_IN_H
593 #include <netinet/in.h>
598 dnl Checks for typedefs, structures, and compiler characteristics.
602 CURL_CHECK_STRUCT_TIMEVAL
604 AC_CHECK_SIZEOF(size_t)
605 AC_CHECK_SIZEOF(long)
606 AC_CHECK_SIZEOF(time_t)
608 AC_CHECK_TYPE(long long,
609 [AC_DEFINE(HAVE_LONGLONG, 1,
610 [Define to 1 if the compiler supports the 'long long' data type.])]
614 if test "xyes" = "x$longlong"; then
615 AC_MSG_CHECKING([if numberLL works])
616 AC_COMPILE_IFELSE([long long val = 1000LL;],
617 [AC_DEFINE(HAVE_LL, 1, [if your compiler supports LL])]
625 AC_CHECK_TYPE(ssize_t, ,
626 AC_DEFINE(ssize_t, int, [the signed version of size_t]))
628 # check for bool type
629 AC_CHECK_TYPE([bool],[
630 AC_DEFINE(HAVE_BOOL_T, 1,
631 [Define to 1 if bool is an available type.])
633 #ifdef HAVE_SYS_TYPES_H
634 #include <sys/types.h>
636 #ifdef HAVE_STDBOOL_H
641 # Check for socklen_t or equivalent
642 CURL_CHECK_TYPE_SOCKLEN_T
646 TYPE_SOCKADDR_STORAGE
653 CURL_CHECK_FUNC_RECVFROM
655 CURL_CHECK_MSG_NOSIGNAL
657 CARES_CHECK_FUNC_GETHOSTNAME
658 CARES_CHECK_FUNC_GETSERVBYPORT_R
659 CARES_CHECK_FUNC_STRCASECMP
660 CARES_CHECK_FUNC_STRCMPI
661 CARES_CHECK_FUNC_STRDUP
662 CARES_CHECK_FUNC_STRICMP
663 CARES_CHECK_FUNC_STRNCASECMP
664 CARES_CHECK_FUNC_STRNCMPI
665 CARES_CHECK_FUNC_STRNICMP
666 CARES_CHECK_FUNC_WRITEV
669 dnl check for AF_INET6
670 CARES_CHECK_CONSTANT(
673 #ifdef HAVE_WINDOWS_H
674 #ifndef WIN32_LEAN_AND_MEAN
675 #define WIN32_LEAN_AND_MEAN
678 #ifdef HAVE_WINSOCK2_H
679 #include <winsock2.h>
682 #ifdef HAVE_SYS_TYPES_H
683 #include <sys/types.h>
685 #ifdef HAVE_SYS_SOCKET_H
686 #include <sys/socket.h>
690 AC_DEFINE_UNQUOTED(HAVE_PF_INET6,1,[Define to 1 if you have PF_INET6.])
693 dnl check for PF_INET6
694 CARES_CHECK_CONSTANT(
697 #ifdef HAVE_WINDOWS_H
698 #ifndef WIN32_LEAN_AND_MEAN
699 #define WIN32_LEAN_AND_MEAN
702 #ifdef HAVE_WINSOCK2_H
703 #include <winsock2.h>
706 #ifdef HAVE_SYS_TYPES_H
707 #include <sys/types.h>
709 #ifdef HAVE_SYS_SOCKET_H
710 #include <sys/socket.h>
714 AC_DEFINE_UNQUOTED(HAVE_AF_INET6,1,[Define to 1 if you have AF_INET6.])
718 dnl check for the in6_addr structure
722 #ifdef HAVE_WINDOWS_H
723 #ifndef WIN32_LEAN_AND_MEAN
724 #define WIN32_LEAN_AND_MEAN
727 #ifdef HAVE_WINSOCK2_H
728 #include <winsock2.h>
729 #ifdef HAVE_WS2TCPIP_H
730 #include <ws2tcpip.h>
734 #ifdef HAVE_SYS_TYPES_H
735 #include <sys/types.h>
737 #ifdef HAVE_NETINET_IN_H
738 #include <netinet/in.h>
742 AC_DEFINE_UNQUOTED(HAVE_STRUCT_IN6_ADDR,1,[Define to 1 if you have struct in6_addr.])
745 dnl check for the sockaddr_in6 structure
749 #ifdef HAVE_WINDOWS_H
750 #ifndef WIN32_LEAN_AND_MEAN
751 #define WIN32_LEAN_AND_MEAN
754 #ifdef HAVE_WINSOCK2_H
755 #include <winsock2.h>
756 #ifdef HAVE_WS2TCPIP_H
757 #include <ws2tcpip.h>
761 #ifdef HAVE_SYS_TYPES_H
762 #include <sys/types.h>
764 #ifdef HAVE_NETINET_IN_H
765 #include <netinet/in.h>
769 AC_DEFINE_UNQUOTED(HAVE_STRUCT_SOCKADDR_IN6,1,
770 [Define to 1 if you have struct sockaddr_in6.]) ac_have_sockaddr_in6=yes
773 AC_CHECK_MEMBER(struct sockaddr_in6.sin6_scope_id,
774 AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1,
775 [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.])
779 #ifdef HAVE_WINDOWS_H
780 #ifndef WIN32_LEAN_AND_MEAN
781 #define WIN32_LEAN_AND_MEAN
784 #ifdef HAVE_WINSOCK2_H
785 #include <winsock2.h>
786 #ifdef HAVE_WS2TCPIP_H
787 #include <ws2tcpip.h>
791 #ifdef HAVE_SYS_TYPES_H
792 #include <sys/types.h>
794 #ifdef HAVE_NETINET_IN_H
795 #include <netinet/in.h>
800 dnl check for the addrinfo structure
801 AC_CHECK_MEMBER(struct addrinfo.ai_flags,
802 AC_DEFINE_UNQUOTED(HAVE_STRUCT_ADDRINFO,1,
803 [Define to 1 if you have struct addrinfo.]),,
806 #ifdef HAVE_WINDOWS_H
807 #ifndef WIN32_LEAN_AND_MEAN
808 #define WIN32_LEAN_AND_MEAN
811 #ifdef HAVE_WINSOCK2_H
812 #include <winsock2.h>
813 #ifdef HAVE_WS2TCPIP_H
814 #include <ws2tcpip.h>
818 #ifdef HAVE_SYS_TYPES_H
819 #include <sys/types.h>
821 #ifdef HAVE_NETINET_IN_H
822 #include <netinet/in.h>
824 #ifdef HAVE_SYS_SOCKET_H
825 #include <sys/socket.h>
835 AC_CHECK_FUNCS([bitncmp \
841 AC_MSG_CHECKING([deeper for $func])
849 eval "ac_cv_func_$func=yes"
850 AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
851 [Define to 1 if you have the $func function.])
853 AC_MSG_RESULT([but still no])
858 dnl check for inet_pton
859 AC_CHECK_FUNCS(inet_pton)
860 dnl Some systems have it, but not IPv6
861 if test "$ac_cv_func_inet_pton" = "yes" ; then
862 AC_MSG_CHECKING(if inet_pton supports IPv6)
865 #ifdef HAVE_SYS_TYPES_H
866 #include <sys/types.h>
868 #ifdef HAVE_SYS_SOCKET_H
869 #include <sys/socket.h>
871 #ifdef HAVE_NETINET_IN_H
872 #include <netinet/in.h>
876 struct in6_addr addr6;
877 if (inet_pton(AF_INET6, "::1", &addr6) < 1)
884 AC_DEFINE_UNQUOTED(HAVE_INET_PTON_IPV6,1,[Define to 1 if inet_pton supports IPv6.])
885 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
887 dnl Check for inet_net_pton
888 AC_CHECK_FUNCS(inet_net_pton)
889 dnl Again, some systems have it, but not IPv6
890 if test "$ac_cv_func_inet_net_pton" = "yes" ; then
891 AC_MSG_CHECKING(if inet_net_pton supports IPv6)
894 #ifdef HAVE_SYS_TYPES_H
895 #include <sys/types.h>
897 #ifdef HAVE_SYS_SOCKET_H
898 #include <sys/socket.h>
900 #ifdef HAVE_NETINET_IN_H
901 #include <netinet/in.h>
905 struct in6_addr addr6;
906 if (inet_net_pton(AF_INET6, "::1", &addr6, sizeof(addr6)) < 1)
913 AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON_IPV6,1,[Define to 1 if inet_net_pton supports IPv6.])
914 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
918 dnl Check for inet_ntop
919 AC_CHECK_FUNCS(inet_ntop)
920 dnl Again, some systems have it, but not IPv6
921 if test "$ac_cv_func_inet_ntop" = "yes" ; then
922 AC_MSG_CHECKING(if inet_ntop supports IPv6)
925 #ifdef HAVE_SYS_TYPES_H
926 #include <sys/types.h>
928 #ifdef HAVE_SYS_SOCKET_H
929 #include <sys/socket.h>
931 #ifdef HAVE_NETINET_IN_H
932 #include <netinet/in.h>
937 struct in6_addr addr6;
939 if (inet_ntop(AF_INET6, &addr6, buf, 128) == 0 && errno == EAFNOSUPPORT)
946 AC_DEFINE_UNQUOTED(HAVE_INET_NTOP_IPV6,1,
947 [Define to 1 if inet_ntop supports IPv6.])
948 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
951 AC_CHECK_SIZEOF(struct in6_addr, ,
954 #ifdef HAVE_WINDOWS_H
955 #ifndef WIN32_LEAN_AND_MEAN
956 #define WIN32_LEAN_AND_MEAN
959 #ifdef HAVE_WINSOCK2_H
960 #include <winsock2.h>
961 #ifdef HAVE_WS2TCPIP_H
962 #include <ws2tcpip.h>
966 #ifdef HAVE_SYS_TYPES_H
967 #include <sys/types.h>
969 #ifdef HAVE_SYS_SOCKET_H
970 #include <sys/socket.h>
972 #ifdef HAVE_NETINET_IN_H
973 #include <netinet/in.h>
979 AC_CHECK_SIZEOF(struct in_addr, ,
982 #ifdef HAVE_WINDOWS_H
983 #ifndef WIN32_LEAN_AND_MEAN
984 #define WIN32_LEAN_AND_MEAN
987 #ifdef HAVE_WINSOCK2_H
988 #include <winsock2.h>
989 #ifdef HAVE_WS2TCPIP_H
990 #include <ws2tcpip.h>
994 #ifdef HAVE_SYS_TYPES_H
995 #include <sys/types.h>
997 #ifdef HAVE_SYS_SOCKET_H
998 #include <sys/socket.h>
1000 #ifdef HAVE_NETINET_IN_H
1001 #include <netinet/in.h>
1008 dnl Check if the getnameinfo function is available
1009 dnl and get the types of five of its arguments.
1010 CURL_CHECK_FUNC_GETNAMEINFO
1013 CURL_CHECK_NONBLOCKING_SOCKET
1016 [AC_DEFINE(ARES_BIG_ENDIAN, 1,
1017 [define this if ares is built for a big endian system])],
1019 [AC_MSG_WARN([couldn't figure out endianess, assuming little endian!])]
1022 dnl Check for user-specified random device
1024 AC_HELP_STRING([--with-random=FILE],
1025 [read randomness from FILE (default=/dev/urandom)]),
1026 [ RANDOM_FILE="$withval" ],
1028 dnl Check for random device. If we're cross compiling, we can't
1029 dnl check, and it's better to assume it doesn't exist than it is
1030 dnl to fail on AC_CHECK_FILE or later.
1031 if test "$cross_compiling" = "no"; then
1032 AC_CHECK_FILE("/dev/urandom", [ RANDOM_FILE="/dev/urandom"] )
1034 AC_MSG_WARN([cannot check for /dev/urandom while cross compiling; assuming none])
1039 if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then
1040 AC_SUBST(RANDOM_FILE)
1041 AC_DEFINE_UNQUOTED(RANDOM_FILE, "$RANDOM_FILE",
1042 [a suitable file/device to read random data from])
1045 CARES_PRIVATE_LIBS="$LIBS"
1046 AC_SUBST(CARES_PRIVATE_LIBS)
1048 AC_CONFIG_FILES([Makefile libcares.pc])