svn commit: r363849 - head/share/mk

[John Baldwin]

Author: jhb
Date: Tue Aug  4 18:24:46 2020
New Revision: 363849
URL: https://svnweb.freebsd.org/changeset/base/363849

Log:
  Disable errors for -Wsystem-headers for GCC on aarch64.
  
  GCC's own arm_neon.h triggers multiple warnings on both GCC 6 and
  GCC 9.
  
  Differential Revision:	https://reviews.freebsd.org/D25729

Modified:
  head/share/mk/bsd.sys.mk

Modified: head/share/mk/bsd.sys.mk
==============================================================================
--- head/share/mk/bsd.sys.mk	Tue Aug  4 18:23:32 2020	(r363848)
+++ head/share/mk/bsd.sys.mk	Tue Aug  4 18:24:46 2020	(r363849)
@@ -184,6 +184,11 @@ CWARNFLAGS+=	-Wno-error=aggressive-loop-optimizations	
 		-Wno-error=sizeof-pointer-memaccess		\
 		-Wno-error=stringop-truncation
 .endif
+
+# GCC's own arm_neon.h triggers various warnings
+.if ${MACHINE_ARCH} == "aarch64"
+CWARNFLAGS+=	-Wno-system-headers
+.endif
 .endif	# gcc
 
 # How to handle FreeBSD custom printf format specifiers.