[PATCH] newlib: fix build with <gcc-5 versions

Mike Frysinger <[email protected]>
Newsgroups gmane.comp.lib.newlib
Message-ID <[email protected]>
__builtin_mul_overflow showed up with gcc-5, so stub it out for older
versions.
---
 newlib/libc/include/sys/cdefs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h
index da729092185c..9ab0fc1e16f4 100644
--- a/newlib/libc/include/sys/cdefs.h
+++ b/newlib/libc/include/sys/cdefs.h
@@ -416,6 +416,10 @@
 #define	__unreachable()	((void)0)
 #endif
 
+#if !__GNUC_PREREQ__(5, 0)
+#define __builtin_mul_overflow(a, b, size) 0
+#endif
+
 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */
 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
 #define	__func__	NULL
-- 
2.34.1
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.