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-rw-r--r--lib/autoconf/specific.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index f750722a..7478ee7f 100644
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -228,7 +228,7 @@ fi
# If the system automatically restarts a system call that is
# interrupted by a signal, define `HAVE_RESTARTABLE_SYSCALLS'.
AC_DEFUN([AC_SYS_RESTARTABLE_SYSCALLS],
-[AC_DIAGNOSE([obsolete],
+[m4_warn([obsolete],
[$0: AC_SYS_RESTARTABLE_SYSCALLS is useful only when supporting very
old systems that lack `sigaction' and `SA_RESTART'. Don't bother with
this macro unless you need to support very old systems like 4.2BSD and