Merge branch 'PHP-5.6'

* PHP-5.6:
  - Fixed bug #65923 (ext/socket assumes AI_V4MAPPED is defined)

Author: felipensp

ext/sockets/config.m4

@@ -16,18 +16,18 @@ if test "$PHP_SOCKETS" != "no"; then
 
   if test "$ac_cv_cmsghdr" = yes; then
     AC_DEFINE(HAVE_CMSGHDR,1,[Whether you have struct cmsghdr])
-  fi 
+  fi
 
   AC_CHECK_FUNCS([hstrerror socketpair if_nametoindex if_indextoname])
-  AC_CHECK_HEADERS([netdb.h netinet/tcp.h sys/un.h sys/sockio.h errno.h]) 
+  AC_CHECK_HEADERS([netdb.h netinet/tcp.h sys/un.h sys/sockio.h errno.h])
   AC_TRY_COMPILE([
 #include <sys/types.h>
 #include <sys/socket.h>
   ], [static struct msghdr tp; int n = (int) tp.msg_flags; return n],[],
     [AC_DEFINE(MISSING_MSGHDR_MSGFLAGS, 1, [ ])]
   )
   AC_DEFINE([HAVE_SOCKETS], 1, [ ])
-  
+
   dnl Check for fied ss_family in sockaddr_storage (missing in AIX until 5.3)
   AC_CACHE_CHECK([for field ss_family in struct sockaddr_storage], ac_cv_ss_family,
   [
@@ -38,11 +38,24 @@ if test "$PHP_SOCKETS" != "no"; then
   ], [struct sockaddr_storage sa_store; sa_store.ss_family = AF_INET6;],
      ac_cv_ss_family=yes, ac_cv_ss_family=no)
   ])
-  
+
   if test "$ac_cv_ss_family" = yes; then
     AC_DEFINE(HAVE_SA_SS_FAMILY,1,[Whether you have sockaddr_storage.ss_family])
   fi
 
+  dnl Check for AI_V4MAPPED flag
+  AC_CACHE_CHECK([if getaddrinfo supports AI_V4MAPPED],[ac_cv_gai_ai_v4mapped],
+  [
+    AC_TRY_COMPILE([
+#include <netdb.h>
+  ], [int flag = AI_V4MAPPED;],
+     ac_cv_gai_ai_v4mapped=yes, ac_cv_gai_ai_v4mapped=no)
+  ])
+
+  if test "$ac_cv_gai_ai_v4mapped" = yes; then
+    AC_DEFINE(HAVE_AI_V4MAPPED,1,[Whether you have AI_V4MAPPED])
+  fi
+
   PHP_NEW_EXTENSION([sockets], [sockets.c multicast.c conversions.c sockaddr_conv.c sendrecvmsg.c], [$ext_shared])
   PHP_INSTALL_HEADERS([ext/sockets/], [php_sockets.h])
 fi

ext/sockets/sockaddr_conv.c

@@ -27,7 +27,11 @@ int php_set_inet6_addr(struct sockaddr_in6 *sin6, char *string, php_socket *php_
 
 		memset(&hints, 0, sizeof(struct addrinfo));
 		hints.ai_family = AF_INET6;
+#if HAVE_AI_V4MAPPED
 		hints.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG;
+#else
+		hints.ai_flags = AI_ADDRCONFIG;
+#endif
 		getaddrinfo(string, NULL, &hints, &addrinfo);
 		if (!addrinfo) {
 #ifdef PHP_WIN32