From: Jory A. Pratt <anarchy@gentoo.org>

Ensure we fortify properly, features.h is pulled in via fortification.

diff --git a/config/system-headers b/config/system-headers
--- a/config/system-headers
+++ b/config/system-headers
@@ -410,17 +410,16 @@ errno.h
 Errors.h
 Events.h
 exdisp.h
 ExDisp.h
 exe386.h
 execinfo.h
 extras.h
 fcntl.h
-features.h
 fibdef.h
 File.h
 filehdr.h
 files.h
 Files.h
 FindDirectory.h
 Finder.h
 FinderRegistry.h
diff --git a/media/webrtc/signaling/src/sdp/sipcc/sdp_os_defs.h b/media/webrtc/signaling/src/sdp/sipcc/sdp_os_defs.h
--- a/media/webrtc/signaling/src/sdp/sipcc/sdp_os_defs.h
+++ b/media/webrtc/signaling/src/sdp/sipcc/sdp_os_defs.h
@@ -15,13 +15,10 @@
 
 /* Use operating system malloc */
 #define SDP_MALLOC(x) calloc(1, (x))
 #define SDP_FREE free
 
 typedef uint8_t    tinybool;
 typedef unsigned short ushort;
 typedef unsigned long  ulong;
-#ifndef __GNUC_STDC_INLINE__
-#define inline
-#endif
 
 #endif /* _SDP_OS_DEFS_H_ */