FreeBSD: fix world build after 143476c

Do not redefine the fallthrough macro when building with libcpp. Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Martin Matuska <[email protected]> Closes openzfs#12880
nicman23 · Aug 22, 2022 · 4888893 · 4888893
1 parent 01e7570
commit 4888893
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/libspl/include/sys/feature_tests.h b/lib/libspl/include/sys/feature_tests.h
@@ -30,7 +30,7 @@
 #define	____cacheline_aligned
 #define	__NORETURN		__attribute__((__noreturn__))
 
-#if !defined(fallthrough)
+#if !defined(fallthrough) && !defined(_LIBCPP_VERSION)
 #if defined(HAVE_IMPLICIT_FALLTHROUGH)
 #define	fallthrough		__attribute__((__fallthrough__))
 #else