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authorAlan Coopersmith <alan.coopersmith@oracle.com>2013-11-06 22:34:03 -0800
committerAlan Coopersmith <alan.coopersmith@oracle.com>2013-11-07 20:16:20 -0800
commit76b4f4430f9a857a1b54bfde9ef57a95b87789f5 (patch)
treef59d7a1a6d64899a19ca67624be9a9d49d57bd0e
parent32070a64ba99fb89ec039e26444b1e026d6a978e (diff)
Check if we need to define _XOPEN_SOURCE for struct msghdr.msg_control
Required to expose the structure members in Solaris headers, since it was an XPG4/UNIX95 addition to the Solaris ABI. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
-rw-r--r--xtrans.m435
1 files changed, 35 insertions, 0 deletions
diff --git a/xtrans.m4 b/xtrans.m4
index 91c6f9d..d84442e 100644
--- a/xtrans.m4
+++ b/xtrans.m4
@@ -57,6 +57,41 @@ AC_DEFUN([XTRANS_TCP_FLAGS],[
AC_INCLUDES_DEFAULT
#include <sys/socket.h>])
+ # 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])
+ ], [], [
+#define _XOPEN_SOURCE 500
+AC_INCLUDES_DEFAULT
+#include <sys/socket.h>
+ ])
+ fi
+
+
]) # XTRANS_TCP_FLAGS
# XTRANS_CONNECTION_FLAGS()