Non-existence of _POSIX_VDISABLE is now non-fatal

[mdsms.git] / configure.in

diff --git a/configure.in b/configure.in
index fc3b103..f4f8f57 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -151,6 +151,18 @@ AC_TRY_COMPILE([
        fi
        ])
 
+AC_MSG_CHECKING([for _POSIX_VDISABLE])
+AC_TRY_COMPILE([
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif], [_POSIX_VDISABLE;],
+       AC_DEFINE(HAVE__POSIX_VDISABLE)    AC_MSG_RESULT(yes),[
+       AC_DEFINE(_POSIX_VDISABLE, ['\0']) AC_MSG_RESULT(no)
+       ])
+
 AC_MSG_CHECKING([for FD_SETSIZE])
 AC_TRY_COMPILE([
 #ifdef HAVE_SYS_TIME_H