diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h
index 3d0161ce0f0b..5c5d2889e73e 100644
--- a/sys/sys/cdefs.h
+++ b/sys/sys/cdefs.h
@@ -117,14 +117,16 @@
 #define	__pure2
 #define	__unused
 #define	__packed
-#define	__aligned
+#define	__aligned(x)
+#define __section(x)
 #endif
 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
 #define	__dead2		__attribute__((__noreturn__))
 #define	__pure2		__attribute__((__const__))
 #define	__unused
-#define	__packed
-#define	__aligned
+#define	__packed	/* XXX find this out, if we care */
+#define	__aligned(x)	/* XXX find this out, if we care */
+#define __section(x)	/* XXX find this out, if we care */
 #endif
 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ == 3
 #define	__dead2		__attribute__((__noreturn__))
@@ -132,6 +134,7 @@
 #define	__unused	__attribute__((__unused__))
 #define	__packed	__attribute__((__packed__))
 #define	__aligned(x)	__attribute__((__aligned__(x)))
+#define	__section(x)	__attribute__((__section__(x)))
 #endif
 
 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */
diff --git a/sys/sys/linker_set.h b/sys/sys/linker_set.h
index ee60ffd4b1e2..f025e18db14d 100644
--- a/sys/sys/linker_set.h
+++ b/sys/sys/linker_set.h
@@ -42,7 +42,7 @@
 #ifdef __GNUC__
 #define __MAKE_SET(set, sym)						\
 	static void const * const __set_##set##_sym_##sym 		\
-	__attribute__((__section__("set_" #set),__unused__)) = &sym
+	__section("set_" #set) __unused = &sym
 #else /* !__GNUC__ */
 #ifndef lint
 #error "This file needs to be compiled by GCC or lint"