gcc13 on OSX fails to include the system limits.

The only way to get IOV_MAX (and friends) is to manually include the GCC specific
syslimits.h header (sys/syslimits.h would not work either).

Fixes open-mpi#12110

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

configure.ac

@@ -686,7 +686,7 @@ AC_CHECK_HEADERS([alloca.h aio.h arpa/inet.h dirent.h \
     sys/types.h sys/uio.h sys/un.h net/uio.h sys/utsname.h sys/vfs.h sys/wait.h syslog.h \
     termios.h ulimit.h unistd.h util.h utmp.h malloc.h \
     ifaddrs.h crt_externs.h regex.h mntent.h paths.h \
-    ioLib.h sockLib.h hostLib.h shlwapi.h sys/synch.h db.h ndbm.h ieee754.h])
+    ioLib.h sockLib.h hostLib.h shlwapi.h sys/synch.h db.h ndbm.h ieee754.h syslimits.h])
 
 AC_CHECK_HEADERS([sys/mount.h], [], [],
 [AC_INCLUDES_DEFAULT

ompi/mca/fbtl/posix/fbtl_posix_preadv.c

@@ -13,6 +13,7 @@
  * Copyright (c) 2015-2018 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * Copyright (c) 2023      Jeffrey M. Squyres.  All rights reserved.
+ * Copyright (c) 2023      NVIDIA Corporation.  All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -26,6 +27,9 @@
 #include "mpi.h"
 #include <unistd.h>
 #include <limits.h>
+#ifdef HAVE_SYSLIMITS_H
+#include <syslimits.h>
+#endif  /* HAVE_SYSLIMITS_H */
 #include "ompi/constants.h"
 #include "ompi/mca/fbtl/fbtl.h"
 

ompi/mca/fbtl/posix/fbtl_posix_pwritev.c

@@ -12,6 +12,7 @@
  * Copyright (c) 2008-2021 University of Houston. All rights reserved.
  * Copyright (c) 2015-2018 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
+ * Copyright (c) 2023      NVIDIA Corporation.  All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -25,8 +26,10 @@
 
 #include "mpi.h"
 #include <unistd.h>
-#include <sys/uio.h>
 #include <limits.h>
+#ifdef HAVE_SYSLIMITS_H
+#include <syslimits.h>
+#endif  /* HAVE_SYSLIMITS_H */
 #include "ompi/constants.h"
 #include "ompi/mca/fbtl/fbtl.h"