[newlib-cygwin] RTEMS: Introduce <machine/_kernel_if.h>

[newlib-cygwin] RTEMS: Introduce <machine/_kernel_if.h>

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=764d748c9cc940cee08cdb22c19c2bc3a008750e

commit 764d748c9cc940cee08cdb22c19c2bc3a008750e
Author: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date:   Wed Aug 8 12:06:48 2018 +0200

    RTEMS: Introduce <machine/_kernel_if.h>
    
    This helps to avoid Newlib updates due to FreeBSD kernel space changes.
    
    Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

Diff:
---
 newlib/libc/sys/rtems/include/net/if.h | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/newlib/libc/sys/rtems/include/net/if.h b/newlib/libc/sys/rtems/include/net/if.h
index b2e2641..54bb909 100644
--- a/newlib/libc/sys/rtems/include/net/if.h
+++ b/newlib/libc/sys/rtems/include/net/if.h
@@ -579,13 +579,6 @@ struct ifrsshash {
 
 #endif /* __BSD_VISIBLE */
 
-#ifdef _KERNEL
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_IFADDR);
-MALLOC_DECLARE(M_IFMADDR);
-#endif
-#endif
-
 #ifndef _KERNEL
 struct if_nameindex {
 	unsigned int	if_index;	/* 1, 2, ... */
@@ -599,4 +592,8 @@ struct if_nameindex	*if_nameindex(void);
 unsigned int		 if_nametoindex(const char *);
 __END_DECLS
 #endif
+#ifdef _KERNEL
+/* Header file provided outside of Newlib */
+#include <machine/_kernel_if.h>
+#endif
 #endif /* !_NET_IF_H_ */