[PATCH] score: Use flexible-array member for C99 and later

[Sebastian Huber]

This addresses compiler warnings like this:

warning: array subscript 0 is outside the bounds of an interior
zero-length array 'abc[0]' [-Wzero-length-bounds]
---
 cpukit/include/rtems/score/basedefs.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cpukit/include/rtems/score/basedefs.h b/cpukit/include/rtems/score/basedefs.h
index a934507d80..5a7e4e4f31 100644
--- a/cpukit/include/rtems/score/basedefs.h
+++ b/cpukit/include/rtems/score/basedefs.h
@@ -430,7 +430,11 @@
  * doesn't allow flexible array members.  Use the GNU extension which is also
  * supported by other compilers.
  */
-#define RTEMS_ZERO_LENGTH_ARRAY 0
+#if __STDC_VERSION__ >= 199409L
+  #define RTEMS_ZERO_LENGTH_ARRAY
+#else
+  #define RTEMS_ZERO_LENGTH_ARRAY 0
+#endif
 
 /**
  * @brief Returns a pointer to the container of a specified member pointer.
-- 
2.26.2