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$need_no_undefined = xyes)
170 dnl **********************************************************************
171 dnl check if this is the Intel ICC compiler, and if so make it stricter
172 dnl (convert warning 147 into an error) so that it properly can detect the
173 dnl gethostbyname_r() version
174 dnl **********************************************************************
175 CURL_DETECT_ICC([CFLAGS="$CFLAGS -we 147"])
177 dnl **********************************************************************
178 dnl platform/compiler/architecture specific checks/flags
179 dnl **********************************************************************
185 dnl find out if icc is being used
186 if test "z$ICC" = "z"; then
190 if test "$ICC" = "yes"; then
191 dnl figure out icc version
192 AC_MSG_CHECKING([icc version])
193 iccver=`$CC -dumpversion`
194 iccnhi=`echo $iccver | cut -d . -f1`
195 iccnlo=`echo $iccver | cut -d . -f2`
196 iccnum=`(expr $iccnhi "*" 100 + $iccnlo) 2>/dev/null`
197 AC_MSG_RESULT($iccver)
199 if test "$iccnum" -ge "900" && test "$iccnum" -lt "1000"; then
201 CFLAGS="$CFLAGS -i-dynamic"
204 if test "$iccnum" -ge "1000"; then
205 dnl icc 10.X or later
206 CFLAGS="$CFLAGS -shared-intel"
214 AC_MSG_CHECKING([whether we are using the IBM C compiler])
215 CURL_CHECK_DEF([__IBMC__], [], [silent])
216 if test "$curl_cv_have_def___IBMC__" = "yes"; then
218 dnl Ensure that compiler optimizations are always thread-safe.
219 CFLAGS="$CFLAGS -qthreaded"
220 dnl Disable type based strict aliasing optimizations, using worst
221 dnl case aliasing assumptions when compiling. Type based aliasing
222 dnl would restrict the lvalues that could be safely used to access
224 CFLAGS="$CFLAGS -qnoansialias"
225 dnl Force compiler to stop after the compilation phase, without
226 dnl generating an object code file when compilation has errors.
227 CFLAGS="$CFLAGS -qhalt=e"
232 AC_MSG_CHECKING([whether we are using the Intel C compiler])
233 CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
234 if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
236 dnl Select strict ANSI C conformance
237 CFLAGS="$CFLAGS -strict-ansi"
238 dnl Select ANSI C dialect
239 CFLAGS="$CFLAGS -std=c89"
240 dnl Disable use of ANSI C aliasing rules in optimizations
241 CFLAGS="$CFLAGS -no-ansi-alias"
246 AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
247 CURL_CHECK_DEF([__DECC], [], [silent])
248 CURL_CHECK_DEF([__DECC_VER], [], [silent])
249 if test "$curl_cv_have_def___DECC" = "yes" &&
250 test "$curl_cv_have_def___DECC_VER" = "yes"; then
252 dnl Select strict ANSI C compiler mode
253 CFLAGS="$CFLAGS -std1"
254 dnl Turn off optimizer ANSI C aliasing rules
255 CFLAGS="$CFLAGS -noansi_alias"
256 dnl Select a higher warning level than default level2
257 CFLAGS="$CFLAGS -msg_enable level3"
258 dnl Generate warnings for missing function prototypes
259 CFLAGS="$CFLAGS -warnprotos"
260 dnl Change some warnings into fatal errors
261 CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
266 CURL_CHECK_COMPILER_HALT_ON_ERROR
267 CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
269 dnl **********************************************************************
270 dnl Compilation based checks should not be done before this point.
271 dnl **********************************************************************
273 dnl **********************************************************************
274 dnl Make sure that our checks for headers windows.h winsock.h winsock2.h
275 dnl and ws2tcpip.h take precedence over any other further checks which
276 dnl could be done later using AC_CHECK_HEADER or AC_CHECK_HEADERS for
277 dnl this specific header files. And do them before its results are used.
278 dnl **********************************************************************
280 CURL_CHECK_HEADER_WINDOWS
281 CURL_CHECK_NATIVE_WINDOWS
282 case X-"$ac_cv_native_windows" in
284 CURL_CHECK_HEADER_WINSOCK
285 CURL_CHECK_HEADER_WINSOCK2
286 CURL_CHECK_HEADER_WS2TCPIP
289 ac_cv_header_winsock_h="no"
290 ac_cv_header_winsock2_h="no"
291 ac_cv_header_ws2tcpip_h="no"
295 dnl **********************************************************************
296 dnl Checks for libraries.
297 dnl **********************************************************************
299 dnl gethostbyname without lib or in the nsl lib?
300 AC_CHECK_FUNC(gethostbyname,
301 [HAVE_GETHOSTBYNAME="1"
303 [ AC_CHECK_LIB(nsl, gethostbyname,
304 [HAVE_GETHOSTBYNAME="1"
309 if test "$HAVE_GETHOSTBYNAME" != "1"
311 dnl gethostbyname in the socket lib?
312 AC_CHECK_LIB(socket, gethostbyname,
313 [HAVE_GETHOSTBYNAME="1"
314 LIBS="$LIBS -lsocket"
318 dnl At least one system has been identified to require BOTH nsl and socket
319 dnl libs at the same time to link properly.
320 if test "$HAVE_GETHOSTBYNAME" != "1"
322 AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs])
323 my_ac_save_LIBS=$LIBS
324 LIBS="-lnsl -lsocket $LIBS"
332 HAVE_GETHOSTBYNAME="1"
335 LIBS=$my_ac_save_LIBS
339 if test "$HAVE_GETHOSTBYNAME" != "1"
341 dnl This is for winsock systems
342 if test "$ac_cv_header_windows_h" = "yes"; then
343 if test "$ac_cv_header_winsock_h" = "yes"; then
346 winsock_LIB="-lwinsock"
349 winsock_LIB="-lwsock32"
353 if test "$ac_cv_header_winsock2_h" = "yes"; then
354 winsock_LIB="-lws2_32"
356 if test ! -z "$winsock_LIB"; then
357 my_ac_save_LIBS=$LIBS
358 LIBS="$winsock_LIB $LIBS"
359 AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
362 #ifdef HAVE_WINDOWS_H
363 #ifndef WIN32_LEAN_AND_MEAN
364 #define WIN32_LEAN_AND_MEAN
367 #ifdef HAVE_WINSOCK2_H
368 #include <winsock2.h>
370 #ifdef HAVE_WINSOCK_H
376 gethostbyname("www.dummysite.com");
380 HAVE_GETHOSTBYNAME="1"
384 LIBS=$my_ac_save_LIBS
390 if test "$HAVE_GETHOSTBYNAME" != "1"
392 dnl This is for Minix 3.1
393 AC_MSG_CHECKING([for gethostbyname for Minix 3])
396 /* Older Minix versions may need <net/gen/netdb.h> here instead */
399 gethostbyname("www.dummysite.com");
403 HAVE_GETHOSTBYNAME="1"
409 if test "$HAVE_GETHOSTBYNAME" != "1"
411 dnl This is for eCos with a stubbed DNS implementation
412 AC_MSG_CHECKING([for gethostbyname for eCos])
418 gethostbyname("www.dummysite.com");
422 HAVE_GETHOSTBYNAME="1"
428 if test "$HAVE_GETHOSTBYNAME" != "1"
430 dnl gethostbyname in the net lib - for BeOS
431 AC_CHECK_LIB(net, gethostbyname,
432 [HAVE_GETHOSTBYNAME="1"
438 if test "$HAVE_GETHOSTBYNAME" = "1"; then
439 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [If you have gethostbyname])
441 AC_MSG_ERROR([couldn't find libraries for gethostbyname()])
445 AC_CHECK_FUNC(strcasecmp, , [ AC_CHECK_LIB(resolve, strcasecmp) ])
447 if test "$ac_cv_lib_resolve_strcasecmp" = "$ac_cv_func_strcasecmp"; then
448 AC_CHECK_LIB(resolve, strcasecmp,
449 [LIBS="-lresolve $LIBS"],
455 AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])
457 dnl **********************************************************************
458 dnl In case that function clock_gettime with monotonic timer is available,
459 dnl check for additional required libraries.
460 dnl **********************************************************************
461 CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
463 AC_MSG_CHECKING([whether to use libgcc])
464 AC_ARG_ENABLE(libgcc,
465 AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]),
466 [ case "$enableval" in
478 dnl Default is to try the thread-safe versions of a few functions
481 dnl detect AIX 4.3 or later
482 AC_MSG_CHECKING([AIX 4.3 or later])
484 #if defined(_AIX) && defined(_AIX43)
487 #error "this is not AIX 4.3 or later"
490 [ AC_MSG_RESULT([yes])
493 [ AC_MSG_RESULT([no]) ]
496 AC_ARG_ENABLE(thread,dnl
497 AC_HELP_STRING([--disable-thread],[don't look for thread-safe functions])
498 AC_HELP_STRING([--enable-thread],[look for thread-safe functions]),
499 [ case "$enableval" in
502 AC_MSG_WARN(c-ares will not get built using thread-safe functions)
510 if test X"$OPT_THREAD" = Xoff
512 AC_DEFINE(DISABLED_THREADSAFE, 1,
513 [Set to explicitly specify we don't want to use thread-safe functions])
516 dnl for recent AIX versions, we skip all the thread-safe checks above since
517 dnl they claim a thread-safe libc using the standard API. But there are
518 dnl some functions still not thread-safe. Check for these!
520 dnl Let's hope this split URL remains working:
521 dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
522 dnl genprogc/thread_quick_ref.htm
524 if test "x$RECENTAIX" = "xyes"; then
526 AC_DEFINE(_THREAD_SAFE, 1, [define this if you need it to compile thread-safe code])
531 dnl **********************************************************************
532 dnl Back to "normal" configuring
533 dnl **********************************************************************
535 dnl Checks for header files.
538 CURL_CHECK_HEADER_MALLOC
540 dnl check for a few basic system headers we need
557 arpa/nameser_compat.h \
559 dnl to do if not found
565 #ifdef HAVE_SYS_TYPES_H
566 #include <sys/types.h>
568 #ifdef HAVE_SYS_TIME_H
569 #include <sys/time.h>
571 dnl We do this default-include simply to make sure that the nameser_compat.h
572 dnl header *REALLY* can be include after the new nameser.h. It seems AIX 5.1
573 dnl (and others?) is not designed to allow this.
574 #ifdef HAVE_ARPA_NAMESER_H
575 #include <arpa/nameser.h>
578 dnl *Sigh* these are needed in order for net/if.h to get properly detected.
579 #ifdef HAVE_SYS_SOCKET_H
580 #include <sys/socket.h>
582 #ifdef HAVE_NETINET_IN_H
583 #include <netinet/in.h>
588 dnl Checks for typedefs, structures, and compiler characteristics.
592 CURL_CHECK_STRUCT_TIMEVAL
594 AC_CHECK_SIZEOF(size_t)
595 AC_CHECK_SIZEOF(long)
596 AC_CHECK_SIZEOF(time_t)
598 AC_CHECK_TYPE(long long,
599 [AC_DEFINE(HAVE_LONGLONG, 1,
600 [Define to 1 if the compiler supports the 'long long' data type.])]
604 if test "xyes" = "x$longlong"; then
605 AC_MSG_CHECKING([if numberLL works])
606 AC_COMPILE_IFELSE([long long val = 1000LL;],
607 [AC_DEFINE(HAVE_LL, 1, [if your compiler supports LL])]
615 AC_CHECK_TYPE(ssize_t, ,
616 AC_DEFINE(ssize_t, int, [the signed version of size_t]))
618 # check for bool type
619 AC_CHECK_TYPE([bool],[
620 AC_DEFINE(HAVE_BOOL_T, 1,
621 [Define to 1 if bool is an available type.])
623 #ifdef HAVE_SYS_TYPES_H
624 #include <sys/types.h>
626 #ifdef HAVE_STDBOOL_H
631 # Check for socklen_t or equivalent
632 CURL_CHECK_TYPE_SOCKLEN_T
636 TYPE_SOCKADDR_STORAGE
643 CURL_CHECK_FUNC_RECVFROM
645 CURL_CHECK_MSG_NOSIGNAL
647 dnl check for AF_INET6
648 CARES_CHECK_CONSTANT(
651 #ifdef HAVE_WINDOWS_H
652 #ifndef WIN32_LEAN_AND_MEAN
653 #define WIN32_LEAN_AND_MEAN
656 #ifdef HAVE_WINSOCK2_H
657 #include <winsock2.h>
660 #ifdef HAVE_SYS_TYPES_H
661 #include <sys/types.h>
663 #ifdef HAVE_SYS_SOCKET_H
664 #include <sys/socket.h>
668 AC_DEFINE_UNQUOTED(HAVE_PF_INET6,1,[Define to 1 if you have PF_INET6.])
671 dnl check for PF_INET6
672 CARES_CHECK_CONSTANT(
675 #ifdef HAVE_WINDOWS_H
676 #ifndef WIN32_LEAN_AND_MEAN
677 #define WIN32_LEAN_AND_MEAN
680 #ifdef HAVE_WINSOCK2_H
681 #include <winsock2.h>
684 #ifdef HAVE_SYS_TYPES_H
685 #include <sys/types.h>
687 #ifdef HAVE_SYS_SOCKET_H
688 #include <sys/socket.h>
692 AC_DEFINE_UNQUOTED(HAVE_AF_INET6,1,[Define to 1 if you have AF_INET6.])
696 dnl check for the in6_addr structure
700 #ifdef HAVE_WINDOWS_H
701 #ifndef WIN32_LEAN_AND_MEAN
702 #define WIN32_LEAN_AND_MEAN
705 #ifdef HAVE_WINSOCK2_H
706 #include <winsock2.h>
707 #ifdef HAVE_WS2TCPIP_H
708 #include <ws2tcpip.h>
712 #ifdef HAVE_SYS_TYPES_H
713 #include <sys/types.h>
715 #ifdef HAVE_NETINET_IN_H
716 #include <netinet/in.h>
720 AC_DEFINE_UNQUOTED(HAVE_STRUCT_IN6_ADDR,1,[Define to 1 if you have struct in6_addr.])
723 dnl check for the sockaddr_in6 structure
727 #ifdef HAVE_WINDOWS_H
728 #ifndef WIN32_LEAN_AND_MEAN
729 #define WIN32_LEAN_AND_MEAN
732 #ifdef HAVE_WINSOCK2_H
733 #include <winsock2.h>
734 #ifdef HAVE_WS2TCPIP_H
735 #include <ws2tcpip.h>
739 #ifdef HAVE_SYS_TYPES_H
740 #include <sys/types.h>
742 #ifdef HAVE_NETINET_IN_H
743 #include <netinet/in.h>
747 AC_DEFINE_UNQUOTED(HAVE_STRUCT_SOCKADDR_IN6,1,
748 [Define to 1 if you have struct sockaddr_in6.]) ac_have_sockaddr_in6=yes
751 AC_CHECK_MEMBER(struct sockaddr_in6.sin6_scope_id,
752 AC_DEFINE_UNQUOTED(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID,1,
753 [Define to 1 if your struct sockaddr_in6 has sin6_scope_id.])
757 #ifdef HAVE_WINDOWS_H
758 #ifndef WIN32_LEAN_AND_MEAN
759 #define WIN32_LEAN_AND_MEAN
762 #ifdef HAVE_WINSOCK2_H
763 #include <winsock2.h>
764 #ifdef HAVE_WS2TCPIP_H
765 #include <ws2tcpip.h>
769 #ifdef HAVE_SYS_TYPES_H
770 #include <sys/types.h>
772 #ifdef HAVE_NETINET_IN_H
773 #include <netinet/in.h>
778 dnl check for the addrinfo structure
779 AC_CHECK_MEMBER(struct addrinfo.ai_flags,
780 AC_DEFINE_UNQUOTED(HAVE_STRUCT_ADDRINFO,1,
781 [Define to 1 if you have struct addrinfo.]),,
784 #ifdef HAVE_WINDOWS_H
785 #ifndef WIN32_LEAN_AND_MEAN
786 #define WIN32_LEAN_AND_MEAN
789 #ifdef HAVE_WINSOCK2_H
790 #include <winsock2.h>
791 #ifdef HAVE_WS2TCPIP_H
792 #include <ws2tcpip.h>
796 #ifdef HAVE_SYS_TYPES_H
797 #include <sys/types.h>
799 #ifdef HAVE_NETINET_IN_H
800 #include <netinet/in.h>
802 #ifdef HAVE_SYS_SOCKET_H
803 #include <sys/socket.h>
813 AC_CHECK_FUNCS([bitncmp \
819 AC_MSG_CHECKING([deeper for $func])
827 eval "ac_cv_func_$func=yes"
828 AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
829 [Define to 1 if you have the $func function.])
831 AC_MSG_RESULT([but still no])
836 dnl check for inet_pton
837 AC_CHECK_FUNCS(inet_pton)
838 dnl Some systems have it, but not IPv6
839 if test "$ac_cv_func_inet_pton" = "yes" ; then
840 AC_MSG_CHECKING(if inet_pton supports IPv6)
843 #ifdef HAVE_SYS_TYPES_H
844 #include <sys/types.h>
846 #ifdef HAVE_SYS_SOCKET_H
847 #include <sys/socket.h>
849 #ifdef HAVE_NETINET_IN_H
850 #include <netinet/in.h>
854 struct in6_addr addr6;
855 if (inet_pton(AF_INET6, "::1", &addr6) < 1)
862 AC_DEFINE_UNQUOTED(HAVE_INET_PTON_IPV6,1,[Define to 1 if inet_pton supports IPv6.])
863 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
865 dnl Check for inet_net_pton
866 AC_CHECK_FUNCS(inet_net_pton)
867 dnl Again, some systems have it, but not IPv6
868 if test "$ac_cv_func_inet_net_pton" = "yes" ; then
869 AC_MSG_CHECKING(if inet_net_pton supports IPv6)
872 #ifdef HAVE_SYS_TYPES_H
873 #include <sys/types.h>
875 #ifdef HAVE_SYS_SOCKET_H
876 #include <sys/socket.h>
878 #ifdef HAVE_NETINET_IN_H
879 #include <netinet/in.h>
883 struct in6_addr addr6;
884 if (inet_net_pton(AF_INET6, "::1", &addr6, sizeof(addr6)) < 1)
891 AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON_IPV6,1,[Define to 1 if inet_net_pton supports IPv6.])
892 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
896 dnl Check for inet_ntop
897 AC_CHECK_FUNCS(inet_ntop)
898 dnl Again, some systems have it, but not IPv6
899 if test "$ac_cv_func_inet_ntop" = "yes" ; then
900 AC_MSG_CHECKING(if inet_ntop supports IPv6)
903 #ifdef HAVE_SYS_TYPES_H
904 #include <sys/types.h>
906 #ifdef HAVE_SYS_SOCKET_H
907 #include <sys/socket.h>
909 #ifdef HAVE_NETINET_IN_H
910 #include <netinet/in.h>
915 struct in6_addr addr6;
917 if (inet_ntop(AF_INET6, &addr6, buf, 128) == 0 && errno == EAFNOSUPPORT)
924 AC_DEFINE_UNQUOTED(HAVE_INET_NTOP_IPV6,1,
925 [Define to 1 if inet_ntop supports IPv6.])
926 ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
929 AC_CHECK_SIZEOF(struct in6_addr, ,
932 #ifdef HAVE_WINDOWS_H
933 #ifndef WIN32_LEAN_AND_MEAN
934 #define WIN32_LEAN_AND_MEAN
937 #ifdef HAVE_WINSOCK2_H
938 #include <winsock2.h>
939 #ifdef HAVE_WS2TCPIP_H
940 #include <ws2tcpip.h>
944 #ifdef HAVE_SYS_TYPES_H
945 #include <sys/types.h>
947 #ifdef HAVE_SYS_SOCKET_H
948 #include <sys/socket.h>
950 #ifdef HAVE_NETINET_IN_H
951 #include <netinet/in.h>
957 AC_CHECK_SIZEOF(struct in_addr, ,
960 #ifdef HAVE_WINDOWS_H
961 #ifndef WIN32_LEAN_AND_MEAN
962 #define WIN32_LEAN_AND_MEAN
965 #ifdef HAVE_WINSOCK2_H
966 #include <winsock2.h>
967 #ifdef HAVE_WS2TCPIP_H
968 #include <ws2tcpip.h>
972 #ifdef HAVE_SYS_TYPES_H
973 #include <sys/types.h>
975 #ifdef HAVE_SYS_SOCKET_H
976 #include <sys/socket.h>
978 #ifdef HAVE_NETINET_IN_H
979 #include <netinet/in.h>
986 dnl Check if the getnameinfo function is available
987 dnl and get the types of five of its arguments.
988 CURL_CHECK_FUNC_GETNAMEINFO
991 dnl God bless non-standardized functions! We need to see which getservbyport_r
992 dnl variant is available
993 CARES_CHECK_GETSERVBYPORT_R
995 CURL_CHECK_NONBLOCKING_SOCKET
998 [AC_DEFINE(ARES_BIG_ENDIAN, 1,
999 [define this if ares is built for a big endian system])],
1001 [AC_MSG_WARN([couldn't figure out endianess, assuming little endian!])]
1004 dnl Check for user-specified random device
1006 AC_HELP_STRING([--with-random=FILE],
1007 [read randomness from FILE (default=/dev/urandom)]),
1008 [ RANDOM_FILE="$withval" ],
1010 dnl Check for random device. If we're cross compiling, we can't
1011 dnl check, and it's better to assume it doesn't exist than it is
1012 dnl to fail on AC_CHECK_FILE or later.
1013 if test "$cross_compiling" = "no"; then
1014 AC_CHECK_FILE("/dev/urandom", [ RANDOM_FILE="/dev/urandom"] )
1016 AC_MSG_WARN([cannot check for /dev/urandom while cross compiling; assuming none])
1021 if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then
1022 AC_SUBST(RANDOM_FILE)
1023 AC_DEFINE_UNQUOTED(RANDOM_FILE, "$RANDOM_FILE",
1024 [a suitable file/device to read random data from])
1027 CARES_PRIVATE_LIBS="$LIBS"
1028 AC_SUBST(CARES_PRIVATE_LIBS)
1030 AC_CONFIG_FILES([Makefile libcares.pc])