gcc: define mpd_sizeof_str_flex_array

This can save a few bytes here on newer gcc and there and will
hopefully make it more obvious what we're doing with
that last struct element

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gcc.h b/src/gcc.h
index 7492e6cad..6bd85663d 100644
--- a/src/gcc.h
+++ b/src/gcc.h
@@ -32,6 +32,10 @@
 #  define mpd_must_check	__attribute__ ((warn_unused_result))
 #  define mpd_noreturn		__attribute__ ((noreturn))
 #  define mpd_packed		__attribute__ ((packed))
+
+/* str_flex_array is always >= 1 because we always 0 terminate strings */
+#  define mpd_sizeof_str_flex_array	1
+
 /* these are very useful for type checking */
 #  define mpd_printf		__attribute__ ((format(printf,1,2)))
 #  define mpd_fprintf		__attribute__ ((format(printf,2,3)))
@@ -52,6 +56,7 @@
 #  define mpd_must_check
 #  define mpd_noreturn
 #  define mpd_packed
+#  define mpd_sizeof_str_flex_array	(sizeof(size_t))
 #  define mpd_printf
 #  define mpd_fprintf
 #  define mpd_fprintf_