[core] define __attribute_unused__ if needed

2 years ago · d4c1855578
parent 4f8f83ea1d
commit d4c1855578
1 changed files with 9 additions and 0 deletions
--- a/src/first.h
+++ b/src/first.h
@ -189,5 +189,14 @@
 #endif
 #endif

+#ifndef __attribute_unused__
+#if __has_attribute(unused) \
+ || __GNUC_PREREQ(2,95)
+#define __attribute_unused__  __attribute__((__unused__))
+#else
+#define __attribute_unused__
+#endif
+#endif
+

 #endif