kc3-lang/gnulib/m4/getaddrinfo.m4
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Hash : 7029d554
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Date : 2025-03-04T21:45:58
getaddrinfo: Fix AI_NUMERICSERV configure check on GCC 14 (regr. 2025-02-12). * m4/getaddrinfo.m4 (gl_GETADDRINFO): Define a pointer to pass to getaddrinfo where it allocates and stores the result.
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m4/getaddrinfo.m4
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# getaddrinfo.m4 # serial 38 dnl Copyright (C) 2004-2025 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This file is offered as-is, without any warranty. AC_DEFUN([gl_GETADDRINFO], [ AC_REQUIRE([gl_SYS_SOCKET_H])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H AC_REQUIRE([gl_NETDB_H])dnl for HAVE_NETDB_H AC_REQUIRE([AC_CANONICAL_HOST]) GETADDRINFO_LIB= gai_saved_LIBS="$LIBS" dnl Where is getaddrinfo()? dnl - On Solaris, it is in libsocket. dnl - On Haiku, it is in libnetwork. dnl - On BeOS, it is in libnet. dnl - On native Windows, it is in ws2_32.dll. dnl - Otherwise it is in libc. AC_SEARCH_LIBS([getaddrinfo], [socket network net], [if test "$ac_cv_search_getaddrinfo" != "none required"; then GETADDRINFO_LIB="$ac_cv_search_getaddrinfo" fi]) LIBS="$gai_saved_LIBS $GETADDRINFO_LIB" HAVE_GETADDRINFO=1 AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [ AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #include <stddef.h> ]], [[getaddrinfo("", "", NULL, NULL);]])], [gl_cv_func_getaddrinfo=yes], [gl_cv_func_getaddrinfo=no])]) if test $gl_cv_func_getaddrinfo = no; then AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32], gl_cv_w32_getaddrinfo, [ gl_cv_w32_getaddrinfo=no gl_saved_LIBS="$LIBS" LIBS="$LIBS -lws2_32" AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> ]], [[getaddrinfo(NULL, NULL, NULL, NULL);]])], [gl_cv_w32_getaddrinfo=yes]) LIBS="$gl_saved_LIBS" ]) if test "$gl_cv_w32_getaddrinfo" = "yes"; then GETADDRINFO_LIB="-lws2_32" LIBS="$gai_saved_LIBS $GETADDRINFO_LIB" dnl Check for correct signature, in particular for a cdecl-compatible dnl calling convention. AC_CACHE_CHECK([for getaddrinfo with POSIX signature], [gl_cv_func_getaddrinfo_posix_signature], [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> extern #ifdef __cplusplus "C" #endif int getaddrinfo (const char *, const char *, const struct addrinfo *, struct addrinfo **); ]])], [gl_cv_func_getaddrinfo_posix_signature=yes], [gl_cv_func_getaddrinfo_posix_signature=no]) ]) if test $gl_cv_func_getaddrinfo_posix_signature = no; then REPLACE_GETADDRINFO=1 fi else HAVE_GETADDRINFO=0 fi fi if test $HAVE_GETADDRINFO != 0; then AC_CACHE_CHECK([whether getaddrinfo supports AI_NUMERICSERV], [gl_cv_func_getaddrinfo_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> #include <string.h> ]], [[ struct addrinfo hints; struct addrinfo *ai; memset (&hints, 0, sizeof (hints)); hints.ai_flags = AI_NUMERICSERV; return getaddrinfo ("www.gnu.org", "http", &hints, &ai) != EAI_NONAME; ]]) ], [gl_cv_func_getaddrinfo_works=yes], [gl_cv_func_getaddrinfo_works=no], [case "$host_os" in # Guess no on native Windows. mingw* | windows*) gl_cv_func_getaddrinfo_works="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_getaddrinfo_works="guessing yes" ;; esac ]) ]) case "$gl_cv_func_getaddrinfo_works" in *yes) ;; *) REPLACE_GETADDRINFO=1 ;; esac fi AC_DEFINE_UNQUOTED([HAVE_GETADDRINFO], [$HAVE_GETADDRINFO], [Define to 1 if getaddrinfo exists, or to 0 otherwise.]) # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an # inline function declared in ws2tcpip.h, so we need to get that # header included somehow. AC_CHECK_DECLS([gai_strerror], [], [], [[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> ]]) if test $ac_cv_have_decl_gai_strerror = yes; then AC_CHECK_DECLS([gai_strerrorA], [], [], [[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> ]]) dnl check for correct signature AC_CACHE_CHECK([for gai_strerror with POSIX signature], [gl_cv_func_gai_strerror_posix_signature], [ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif #include <stddef.h> extern #ifdef __cplusplus "C" #endif const char *gai_strerror(int);]])], [gl_cv_func_gai_strerror_posix_signature=yes], [gl_cv_func_gai_strerror_posix_signature=no])]) if test $gl_cv_func_gai_strerror_posix_signature = no; then REPLACE_GAI_STRERROR=1 fi fi LIBS="$gai_saved_LIBS" gl_PREREQ_GETADDRINFO AC_SUBST([GETADDRINFO_LIB]) ]) # Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c. AC_DEFUN([gl_PREREQ_GETADDRINFO], [ AC_REQUIRE([gl_NETDB_H_DEFAULTS]) AC_REQUIRE([gl_SYS_SOCKET_H])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB AC_REQUIRE([gl_FUNC_INET_NTOP]) dnl for INET_NTOP_LIB AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([gl_SOCKET_FAMILIES]) AC_REQUIRE([gl_SYS_SOCKET_H]) AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Including sys/socket.h is wrong for Windows, but Windows does not dnl have sa_len so the result is correct anyway. AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [ #include <sys/types.h> #include <sys/socket.h> ]) AC_CHECK_HEADERS_ONCE([netinet/in.h]) AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, getnameinfo],,,[[ /* sys/types.h is not needed according to POSIX, but the sys/socket.h in i386-unknown-freebsd4.10 and powerpc-apple-darwin5.5 required it. */ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif ]]) if test $ac_cv_have_decl_getaddrinfo = no; then HAVE_DECL_GETADDRINFO=0 fi if test $ac_cv_have_decl_freeaddrinfo = no; then HAVE_DECL_FREEADDRINFO=0 fi if test $ac_cv_have_decl_gai_strerror = no; then HAVE_DECL_GAI_STRERROR=0 fi if test $ac_cv_have_decl_getnameinfo = no; then HAVE_DECL_GETNAMEINFO=0 fi AC_CHECK_TYPES([struct addrinfo],,,[ #include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_WS2TCPIP_H #include <ws2tcpip.h> #endif ]) if test $ac_cv_type_struct_addrinfo = no; then HAVE_STRUCT_ADDRINFO=0 fi dnl Append $HOSTENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. case " $GETADDRINFO_LIB " in *" $HOSTENT_LIB "*) ;; *) GETADDRINFO_LIB="$GETADDRINFO_LIB $HOSTENT_LIB" ;; esac dnl Append $SERVENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. case " $GETADDRINFO_LIB " in *" $SERVENT_LIB "*) ;; *) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;; esac dnl Append $INET_NTOP_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates. case " $GETADDRINFO_LIB " in *" $INET_NTOP_LIB "*) ;; *) GETADDRINFO_LIB="$GETADDRINFO_LIB $INET_NTOP_LIB" ;; esac ])