dnl -------------------------------------------------------- -*- autoconf -*- dnl Licensed to the Apache Software Foundation (ASF) under one or more dnl contributor license agreements. See the NOTICE file distributed with dnl this work for additional information regarding copyright ownership. dnl The ASF licenses this file to You under the Apache License, Version 2.0 dnl (the "License"); you may not use this file except in compliance with dnl the License. You may obtain a copy of the License at dnl dnl http://www.apache.org/licenses/LICENSE-2.0 dnl dnl Unless required by applicable law or agreed to in writing, software dnl distributed under the License is distributed on an "AS IS" BASIS, dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. dnl See the License for the specific language governing permissions and dnl limitations under the License. dnl ----------------------------------------------------------------- dnl apr_network.m4: APR's autoconf macros for testing network support dnl dnl dnl check for type in_addr dnl AC_DEFUN(APR_TYPE_IN_ADDR,[ AC_CACHE_CHECK(for type in_addr, ac_cv_type_in_addr,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_WINSOCK2_H #include #endif ],[ struct in_addr arg; arg.s_addr = htonl(INADDR_ANY); ], [ ac_cv_type_in_addr="yes"] , [ ac_cv_type_in_addr="no"]) ]) ]) dnl dnl check for working getaddrinfo() dnl dnl Note that if the system doesn't have gai_strerror(), we dnl can't use getaddrinfo() because we can't get strings dnl describing the error codes. dnl AC_DEFUN([APR_CHECK_WORKING_GETADDRINFO], [ AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[ AC_TRY_RUN( [ #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif void main(void) { struct addrinfo hints, *ai; int error; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; error = getaddrinfo("127.0.0.1", NULL, &hints, &ai); if (error) { exit(1); } if (ai->ai_addr->sa_family != AF_INET) { exit(1); } exit(0); } ],[ ac_cv_working_getaddrinfo="yes" ],[ ac_cv_working_getaddrinfo="no" ],[ ac_cv_working_getaddrinfo="yes" ])]) if test "$ac_cv_working_getaddrinfo" = "yes"; then if test "$ac_cv_func_gai_strerror" != "yes"; then ac_cv_working_getaddrinfo="no" else AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works well enough for APR]) fi fi ]) dnl Check whether the AI_ADDRCONFIG flag can be used with getaddrinfo AC_DEFUN([APR_CHECK_GETADDRINFO_ADDRCONFIG], [ AC_CACHE_CHECK(for working AI_ADDRCONFIG, apr_cv_gai_addrconfig, [ AC_TRY_RUN([ #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif int main(int argc, char **argv) { struct addrinfo hints, *ai; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; hints.ai_flags = AI_ADDRCONFIG; return getaddrinfo("localhost", NULL, &hints, &ai) != 0; }], [apr_cv_gai_addrconfig=yes], [apr_cv_gai_addrconfig=no], [apr_cv_gai_addrconfig=no])]) if test $apr_cv_gai_addrconfig = yes; then AC_DEFINE(HAVE_GAI_ADDRCONFIG, 1, [Define if getaddrinfo accepts the AI_ADDRCONFIG flag]) fi ]) dnl dnl check for working getnameinfo() dnl AC_DEFUN([APR_CHECK_WORKING_GETNAMEINFO], [ AC_CACHE_CHECK(for working getnameinfo, ac_cv_working_getnameinfo,[ AC_TRY_RUN( [ #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif void main(void) { struct sockaddr_in sa; char hbuf[256]; int error; sa.sin_family = AF_INET; sa.sin_port = 0; sa.sin_addr.s_addr = inet_addr("127.0.0.1"); #ifdef SIN6_LEN sa.sin_len = sizeof(sa); #endif error = getnameinfo((const struct sockaddr *)&sa, sizeof(sa), hbuf, 256, NULL, 0, NI_NUMERICHOST); if (error) { exit(1); } else { exit(0); } } ],[ ac_cv_working_getnameinfo="yes" ],[ ac_cv_working_getnameinfo="no" ],[ ac_cv_working_getnameinfo="yes" ])]) if test "$ac_cv_working_getnameinfo" = "yes"; then AC_DEFINE(HAVE_GETNAMEINFO, 1, [Define if getnameinfo exists]) fi ]) dnl dnl check for negative error codes for getaddrinfo() dnl AC_DEFUN([APR_CHECK_NEGATIVE_EAI], [ AC_CACHE_CHECK(for negative error codes for getaddrinfo, ac_cv_negative_eai,[ AC_TRY_RUN( [ #ifdef HAVE_NETDB_H #include #endif void main(void) { if (EAI_ADDRFAMILY < 0) { exit(0); } exit(1); } ],[ ac_cv_negative_eai="yes" ],[ ac_cv_negative_eai="no" ],[ ac_cv_negative_eai="no" ])]) if test "$ac_cv_negative_eai" = "yes"; then AC_DEFINE(NEGATIVE_EAI, 1, [Define if EAI_ error codes from getaddrinfo are negative]) fi ]) dnl dnl Checks the definition of gethostbyname_r and gethostbyaddr_r dnl which are different for glibc, solaris and assorted other operating dnl systems dnl dnl Note that this test is executed too early to see if we have all of dnl the headers. AC_DEFUN([APR_CHECK_GETHOSTBYNAME_R_STYLE], [ dnl Try and compile a glibc2 gethostbyname_r piece of code, and set the dnl style of the routines to glibc2 on success AC_CACHE_CHECK([style of gethostbyname_r routine], ac_cv_gethostbyname_r_style, APR_TRY_COMPILE_NO_WARNING([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STDLIB_H #include #endif ],[ int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0, (char *) 0, 0, (struct hostent **) 0, &tmp); /* use tmp to suppress the warning */ tmp=0; ], ac_cv_gethostbyname_r_style=glibc2, ac_cv_gethostbyname_r_style=none)) if test "$ac_cv_gethostbyname_r_style" = "glibc2"; then AC_DEFINE(GETHOSTBYNAME_R_GLIBC2, 1, [Define if gethostbyname_r has the glibc style]) fi AC_CACHE_CHECK([3rd argument to the gethostbyname_r routines], ac_cv_gethostbyname_r_arg, APR_TRY_COMPILE_NO_WARNING([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STDLIB_H #include #endif ],[ int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0, (struct hostent_data *) 0); /* use tmp to suppress the warning */ tmp=0; ], ac_cv_gethostbyname_r_arg=hostent_data, ac_cv_gethostbyname_r_arg=char)) if test "$ac_cv_gethostbyname_r_arg" = "hostent_data"; then AC_DEFINE(GETHOSTBYNAME_R_HOSTENT_DATA, 1, [Define if gethostbyname_r has the hostent_data for the third argument]) fi ]) dnl dnl Checks the definition of getservbyname_r dnl which are different for glibc, solaris and assorted other operating dnl systems dnl dnl Note that this test is executed too early to see if we have all of dnl the headers. AC_DEFUN([APR_CHECK_GETSERVBYNAME_R_STYLE], [ dnl Try and compile a glibc2 getservbyname_r piece of code, and set the dnl style of the routines to glibc2 on success AC_CACHE_CHECK([style of getservbyname_r routine], ac_cv_getservbyname_r_style, [ APR_TRY_COMPILE_NO_WARNING([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STDLIB_H #include #endif ],[ int tmp = getservbyname_r((const char *) 0, (const char *) 0, (struct servent *) 0, (char *) 0, 0, (struct servent **) 0); /* use tmp to suppress the warning */ tmp=0; ], ac_cv_getservbyname_r_style=glibc2, ac_cv_getservbyname_r_style=none) if test "$ac_cv_getservbyname_r_style" = "none"; then dnl Try and compile a Solaris getservbyname_r piece of code, and set the dnl style of the routines to solaris on success APR_TRY_COMPILE_NO_WARNING([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STDLIB_H #include #endif ],[ struct servent *tmp = getservbyname_r((const char *) 0, (const char *) 0, (struct servent *) 0, (char *) 0, 0); /* use tmp to suppress the warning */ tmp=NULL; ], ac_cv_getservbyname_r_style=solaris, ac_cv_getservbyname_r_style=none) fi if test "$ac_cv_getservbyname_r_style" = "none"; then dnl Try and compile a OSF/1 getservbyname_r piece of code, and set the dnl style of the routines to osf1 on success APR_TRY_COMPILE_NO_WARNING([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_STDLIB_H #include #endif ],[ int tmp = getservbyname_r((const char *) 0, (const char *) 0, (struct servent *) 0, (struct servent_data *) 0); /* use tmp to suppress the warning */ tmp=0; ], ac_cv_getservbyname_r_style=osf1, ac_cv_getservbyname_r_style=none) fi ]) if test "$ac_cv_getservbyname_r_style" = "glibc2"; then AC_DEFINE(GETSERVBYNAME_R_GLIBC2, 1, [Define if getservbyname_r has the glibc style]) elif test "$ac_cv_getservbyname_r_style" = "solaris"; then AC_DEFINE(GETSERVBYNAME_R_SOLARIS, 1, [Define if getservbyname_r has the Solaris style]) elif test "$ac_cv_getservbyname_r_style" = "osf1"; then AC_DEFINE(GETSERVBYNAME_R_OSF1, 1, [Define if getservbyname_r has the OSF/1 style]) fi ]) dnl dnl see if TCP_NODELAY setting is inherited from listening sockets dnl AC_DEFUN([APR_CHECK_TCP_NODELAY_INHERITED], [ AC_CACHE_CHECK(if TCP_NODELAY setting is inherited from listening sockets, ac_cv_tcp_nodelay_inherited,[ AC_TRY_RUN( [ #include #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_TCP_H #include #endif #ifndef HAVE_SOCKLEN_T typedef int socklen_t; #endif int main(void) { int listen_s, connected_s, client_s; int listen_port, rc; struct sockaddr_in sa; socklen_t sa_len; socklen_t option_len; int option; listen_s = socket(AF_INET, SOCK_STREAM, 0); if (listen_s < 0) { perror("socket"); exit(1); } option = 1; rc = setsockopt(listen_s, IPPROTO_TCP, TCP_NODELAY, &option, sizeof option); if (rc < 0) { perror("setsockopt TCP_NODELAY"); exit(1); } memset(&sa, 0, sizeof sa); sa.sin_family = AF_INET; #ifdef BEOS sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK); #endif /* leave port 0 to get ephemeral */ rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa); if (rc < 0) { perror("bind for ephemeral port"); exit(1); } /* find ephemeral port */ sa_len = sizeof(sa); rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len); if (rc < 0) { perror("getsockname"); exit(1); } listen_port = sa.sin_port; rc = listen(listen_s, 5); if (rc < 0) { perror("listen"); exit(1); } client_s = socket(AF_INET, SOCK_STREAM, 0); if (client_s < 0) { perror("socket"); exit(1); } memset(&sa, 0, sizeof sa); sa.sin_family = AF_INET; sa.sin_port = listen_port; #ifdef BEOS sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK); #endif /* leave sin_addr all zeros to use loopback */ rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa); if (rc < 0) { perror("connect"); exit(1); } sa_len = sizeof sa; connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len); if (connected_s < 0) { perror("accept"); exit(1); } option_len = sizeof option; rc = getsockopt(connected_s, IPPROTO_TCP, TCP_NODELAY, &option, &option_len); if (rc < 0) { perror("getsockopt"); exit(1); } if (!option) { fprintf(stderr, "TCP_NODELAY is not set in the child.\n"); exit(1); } return 0; } ],[ ac_cv_tcp_nodelay_inherited="yes" ],[ ac_cv_tcp_nodelay_inherited="no" ],[ ac_cv_tcp_nodelay_inherited="yes" ])]) if test "$ac_cv_tcp_nodelay_inherited" = "yes"; then tcp_nodelay_inherited=1 else tcp_nodelay_inherited=0 fi ]) dnl dnl Determine whether TCP_NODELAY and TCP_CORK can both be set dnl on a TCP socket. dnl AC_DEFUN([APR_CHECK_TCP_NODELAY_WITH_CORK], [ AC_CACHE_CHECK([whether TCP_NODELAY and TCP_CORK can both be enabled], [apr_cv_tcp_nodelay_with_cork], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_TCP_H #include #endif #include #include ]], [[ int fd, flag, rc; fd = socket(AF_INET, SOCK_STREAM, 0); if (fd < 0) { exit(1); } flag = 1; rc = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof flag); if (rc < 0) { perror("setsockopt TCP_NODELAY"); exit(2); } flag = 1; rc = setsockopt(fd, IPPROTO_TCP, TCP_CORK, &flag, sizeof flag); if (rc < 0) { perror("setsockopt TCP_CORK"); exit(3); } exit(0); ]])], [apr_cv_tcp_nodelay_with_cork=yes], [apr_cv_tcp_nodelay_with_cork=no])]) if test "$apr_cv_tcp_nodelay_with_cork" = "yes"; then AC_DEFINE([HAVE_TCP_NODELAY_WITH_CORK], 1, [Define if TCP_NODELAY and TCP_CORK can be enabled at the same time]) fi ]) dnl dnl see if O_NONBLOCK setting is inherited from listening sockets dnl AC_DEFUN([APR_CHECK_O_NONBLOCK_INHERITED], [ AC_CACHE_CHECK(if O_NONBLOCK setting is inherited from listening sockets, ac_cv_o_nonblock_inherited,[ AC_TRY_RUN( [ #include #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_TCP_H #include #endif #ifndef HAVE_SOCKLEN_T typedef int socklen_t; #endif #ifdef HAVE_FCNTL_H #include #endif int main(void) { int listen_s, connected_s, client_s; int listen_port, rc; struct sockaddr_in sa; socklen_t sa_len; listen_s = socket(AF_INET, SOCK_STREAM, 0); if (listen_s < 0) { perror("socket"); exit(1); } memset(&sa, 0, sizeof sa); sa.sin_family = AF_INET; #ifdef BEOS sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK); #endif /* leave port 0 to get ephemeral */ rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa); if (rc < 0) { perror("bind for ephemeral port"); exit(1); } /* find ephemeral port */ sa_len = sizeof(sa); rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len); if (rc < 0) { perror("getsockname"); exit(1); } listen_port = sa.sin_port; rc = listen(listen_s, 5); if (rc < 0) { perror("listen"); exit(1); } rc = fcntl(listen_s, F_SETFL, O_NONBLOCK); if (rc < 0) { perror("fcntl(F_SETFL)"); exit(1); } client_s = socket(AF_INET, SOCK_STREAM, 0); if (client_s < 0) { perror("socket"); exit(1); } memset(&sa, 0, sizeof sa); sa.sin_family = AF_INET; sa.sin_port = listen_port; #ifdef BEOS sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK); #endif /* leave sin_addr all zeros to use loopback */ rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa); if (rc < 0) { perror("connect"); exit(1); } sa_len = sizeof sa; connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len); if (connected_s < 0) { perror("accept"); exit(1); } rc = fcntl(connected_s, F_GETFL, 0); if (rc < 0) { perror("fcntl(F_GETFL)"); exit(1); } if (!(rc & O_NONBLOCK)) { fprintf(stderr, "O_NONBLOCK is not set in the child.\n"); exit(1); } return 0; } ],[ ac_cv_o_nonblock_inherited="yes" ],[ ac_cv_o_nonblock_inherited="no" ],[ ac_cv_o_nonblock_inherited="yes" ])]) if test "$ac_cv_o_nonblock_inherited" = "yes"; then o_nonblock_inherited=1 else o_nonblock_inherited=0 fi ]) dnl dnl check for socklen_t, fall back to unsigned int dnl AC_DEFUN([APR_CHECK_SOCKLEN_T], [ AC_CACHE_CHECK(for socklen_t, ac_cv_socklen_t,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif ],[ socklen_t foo = (socklen_t) 0; ],[ ac_cv_socklen_t=yes ],[ ac_cv_socklen_t=no ]) ]) if test "$ac_cv_socklen_t" = "yes"; then AC_DEFINE(HAVE_SOCKLEN_T, 1, [Whether you have socklen_t]) fi ]) AC_DEFUN([APR_CHECK_INET_ADDR], [ AC_CACHE_CHECK(for inet_addr, ac_cv_func_inet_addr,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif ],[ inet_addr("127.0.0.1"); ],[ ac_cv_func_inet_addr=yes ],[ ac_cv_func_inet_addr=no ]) ]) if test "$ac_cv_func_inet_addr" = "yes"; then have_inet_addr=1 else have_inet_addr=0 fi ]) AC_DEFUN([APR_CHECK_INET_NETWORK], [ AC_CACHE_CHECK(for inet_network, ac_cv_func_inet_network,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif ],[ inet_network("127.0.0.1"); ],[ ac_cv_func_inet_network=yes ],[ ac_cv_func_inet_network=no ]) ]) if test "$ac_cv_func_inet_network" = "yes"; then have_inet_network=1 else have_inet_network=0 fi ]) dnl Check for presence of struct sockaddr_storage. AC_DEFUN([APR_CHECK_SOCKADDR_STORAGE], [ AC_CACHE_CHECK(for sockaddr_storage, apr_cv_define_sockaddr_storage,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif ],[struct sockaddr_storage sa;], [apr_cv_define_sockaddr_storage=yes], [apr_cv_define_sockaddr_storage=no])]) if test "$apr_cv_define_sockaddr_storage" = "yes"; then have_sa_storage=1 else have_sa_storage=0 fi AC_SUBST(have_sa_storage) ]) dnl Check for presence of struct sockaddr_in6. AC_DEFUN([APR_CHECK_SOCKADDR_IN6], [ AC_CACHE_CHECK(for sockaddr_in6, ac_cv_define_sockaddr_in6,[ AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif ],[ struct sockaddr_in6 sa; ],[ ac_cv_define_sockaddr_in6=yes ],[ ac_cv_define_sockaddr_in6=no ]) ]) if test "$ac_cv_define_sockaddr_in6" = "yes"; then have_sockaddr_in6=1 else have_sockaddr_in6=0 fi ]) dnl dnl APR_H_ERRNO_COMPILE_CHECK dnl AC_DEFUN([APR_H_ERRNO_COMPILE_CHECK], [ if test x$1 != x; then CPPFLAGS="-D$1 $CPPFLAGS" fi AC_TRY_COMPILE([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETDB_H #include #endif ],[ int h_e = h_errno; ],[ if test x$1 != x; then ac_cv_h_errno_cppflags="$1" else ac_cv_h_errno_cppflags=yes fi ],[ ac_cv_h_errno_cppflags=no ])]) dnl dnl APR_CHECK_SCTP dnl dnl check for presence of SCTP protocol support dnl AC_DEFUN([APR_CHECK_SCTP], [ AC_CACHE_CHECK([whether SCTP is supported], [apr_cv_sctp], [ AC_TRY_RUN([ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_SCTP_H #include #endif #ifdef HAVE_NETINET_SCTP_UIO_H #include #endif #include int main(void) { int s, opt = 1; if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP)) < 0) exit(1); if (setsockopt(s, IPPROTO_SCTP, SCTP_NODELAY, &opt, sizeof(int)) < 0) exit(2); exit(0); }], [apr_cv_sctp=yes], [apr_cv_sctp=no], [apr_cv_sctp=no])]) if test "$apr_cv_sctp" = "yes"; then have_sctp=1 else have_sctp=0 fi ]) dnl APR_CHECK_MCAST: check for multicast interfaces AC_DEFUN([APR_CHECK_MCAST], [ AC_CACHE_CHECK([for struct ip_mreq], [apr_cv_struct_ipmreq], [ AC_TRY_COMPILE([ #include #include ], [ struct ip_mreq mip; mip.imr_interface.s_addr = INADDR_ANY; ], [apr_cv_struct_ipmreq=yes], [apr_cv_struct_ipmreq=no], [apr_cv_struct_ipmreq=yes])]) if test $apr_cv_struct_ipmreq = yes; then AC_DEFINE([HAVE_STRUCT_IPMREQ], 1, [Define if struct impreq was found]) fi ]) dnl dnl APR_CHECK_H_ERRNO_FLAG dnl dnl checks which flags are necessary for to define h_errno dnl AC_DEFUN([APR_CHECK_H_ERRNO_FLAG], [ AC_MSG_CHECKING([for h_errno in netdb.h]) AC_CACHE_VAL(ac_cv_h_errno_cppflags,[ APR_H_ERRNO_COMPILE_CHECK if test "$ac_cv_h_errno_cppflags" = "no"; then ac_save="$CPPFLAGS" for flag in _XOPEN_SOURCE_EXTENDED; do APR_H_ERRNO_COMPILE_CHECK($flag) if test "$ac_cv_h_errno_cppflags" != "no"; then break fi done CPPFLAGS="$ac_save" fi ]) if test "$ac_cv_h_errno_cppflags" != "no"; then if test "$ac_cv_h_errno_cppflags" != "yes"; then CPPFLAGS="-D$ac_cv_h_errno_cppflags $CPPFLAGS" AC_MSG_RESULT([yes, with -D$ac_cv_h_errno_cppflags]) else AC_MSG_RESULT([$ac_cv_h_errno_cppflags]) fi else AC_MSG_RESULT([$ac_cv_h_errno_cppflags]) fi ]) AC_DEFUN([APR_EBCDIC], [ AC_CACHE_CHECK([whether system uses EBCDIC],ac_cv_ebcdic,[ AC_TRY_RUN( [ int main(void) { return (unsigned char)'A' != (unsigned char)0xC1; } ],[ ac_cv_ebcdic="yes" ],[ ac_cv_ebcdic="no" ],[ ac_cv_ebcdic="no" ])]) if test "$ac_cv_ebcdic" = "yes"; then apr_charset_ebcdic=1 else apr_charset_ebcdic=0 fi AC_SUBST(apr_charset_ebcdic) ])