diff options
| -rw-r--r-- | configure.ac | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index d054a43..87804ba 100644 --- a/configure.ac +++ b/configure.ac @@ -90,6 +90,40 @@ xauto) ;; esac +# XPG4v2/UNIX95 added msg_control - check to see if we need to define +# _XOPEN_SOURCE to get it (such as on Solaris) +AC_CHECK_MEMBER([struct msghdr.msg_control], [], [], + [ +AC_INCLUDES_DEFAULT +#include <sys/socket.h> + ]) +# First try for Solaris in C99 compliant mode, which requires XPG6/UNIX03 +if test "x$ac_cv_member_struct_msghdr_msg_control" = xno; then + unset ac_cv_member_struct_msghdr_msg_control + AC_MSG_NOTICE([trying again with _XOPEN_SOURCE=600]) + AC_CHECK_MEMBER([struct msghdr.msg_control], + [AC_DEFINE([_XOPEN_SOURCE], [600], + [Defined if needed to expose struct msghdr.msg_control]) + ], [], [ +#define _XOPEN_SOURCE 600 +AC_INCLUDES_DEFAULT +#include <sys/socket.h> + ]) +fi +# If that didn't work, fall back to XPG5/UNIX98 with C89 +if test "x$ac_cv_member_struct_msghdr_msg_control" = xno; then + unset ac_cv_member_struct_msghdr_msg_control + AC_MSG_NOTICE([trying again with _XOPEN_SOURCE=500]) + AC_CHECK_MEMBER([struct msghdr.msg_control], + [AC_DEFINE([_XOPEN_SOURCE], [500], + [Defined if needed to expose struct msghdr.msg_control]) + ], [sendfds="no"], [ +#define _XOPEN_SOURCE 500 +AC_INCLUDES_DEFAULT +#include <sys/socket.h> + ]) +fi + case x$sendfds in xyes) AC_DEFINE([HAVE_SENDMSG],1,[Define if your platform supports sendmsg]) |