From 9ba4744620f277188955f90055237d9e89b8e6f9 Mon Sep 17 00:00:00 2001 From: Corinna Vinschen Date: Tue, 8 Nov 2016 16:14:43 +0100 Subject: [PATCH] sys/cdefs.h: Define __hidden as empty on Cygwin Non-default visibility attributes are unsupported on PE/COFF, so don't use in __hidden definition for Cygwin. Add comment. Signed-off-by: Corinna Vinschen --- newlib/libc/include/sys/cdefs.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h index 2a55a92e9..f569fc4d0 100644 --- a/newlib/libc/include/sys/cdefs.h +++ b/newlib/libc/include/sys/cdefs.h @@ -466,8 +466,13 @@ #if __GNUC_PREREQ__(4, 0) #define __sentinel __attribute__((__sentinel__)) #define __exported __attribute__((__visibility__("default"))) +/* Only default visibility is supported on PE/COFF targets. */ +#ifndef __CYGWIN__ #define __hidden __attribute__((__visibility__("hidden"))) #else +#define __hidden +#endif +#else #define __sentinel #define __exported #define __hidden