common/autoconf/hotspot-spec.gmk.in

rev 1735 : 8151841: Build needs additional flags to compile with GCC 6 [plus parts of 8149647 & 8032045]
Summary: C++ standard needs to be explicitly set and some optimisations turned off to build on GCC 6
Reviewed-by: erikj, dholmes, kbarrett

*** 1,7 ****
  #
! # Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
  # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  #
  # This code is free software; you can redistribute it and/or modify it
  # under the terms of the GNU General Public License version 2 only, as
  # published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  #
! # Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
  # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  #
  # This code is free software; you can redistribute it and/or modify it
  # under the terms of the GNU General Public License version 2 only, as
  # published by the Free Software Foundation.  Oracle designates this
*** 107,117 ****
  CXX:=@CCACHE@ @HOTSPOT_CXX@
  LD:=@HOTSPOT_LD@
  MT:=@HOTSPOT_MT@
  RC:=@HOTSPOT_RC@
  
! EXTRA_CFLAGS=@LEGACY_EXTRA_CFLAGS@
  EXTRA_CXXFLAGS=@LEGACY_EXTRA_CXXFLAGS@
  EXTRA_LDFLAGS=@LEGACY_EXTRA_LDFLAGS@
  
  USE_PRECOMPILED_HEADER=@USE_PRECOMPILED_HEADER@
  
--- 107,118 ----
  CXX:=@CCACHE@ @HOTSPOT_CXX@
  LD:=@HOTSPOT_LD@
  MT:=@HOTSPOT_MT@
  RC:=@HOTSPOT_RC@
  
! EXTRA_CFLAGS=@LEGACY_EXTRA_CFLAGS@ $(NO_DELETE_NULL_POINTER_CHECKS_CFLAG) \
!                                    $(NO_LIFETIME_DSE_CFLAG) $(CXXSTD_CXXFLAG)
  EXTRA_CXXFLAGS=@LEGACY_EXTRA_CXXFLAGS@
  EXTRA_LDFLAGS=@LEGACY_EXTRA_LDFLAGS@
  
  USE_PRECOMPILED_HEADER=@USE_PRECOMPILED_HEADER@