3748 zfs headers should be C++ compatible
Submitted by:   Justin Gibbs <justing@spectralogic.com>
Submitted by:   Will Andrews <willa@spectralogic.com>
Reviewed by:    Matthew Ahrens <mahrens@delphix.com>

*** 22,33 ****
  # Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  # Copyright (c) 2012 by Delphix. All rights reserved.
  #
  
  PROG= ztest
! OBJS= $(PROG).o
! SRCS= $(OBJS:%.o=../%.c)
  
  include ../../Makefile.cmd
  include ../../Makefile.ctf
  
  INCS += -I../../../lib/libzpool/common
--- 22,33 ----
  # Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  # Copyright (c) 2012 by Delphix. All rights reserved.
  #
  
  PROG= ztest
! OBJS= $(PROG).o ztest_util.o
! SRCS= $(OBJS:%.o=../%.c) ztest_util.cpp
  
  include ../../Makefile.cmd
  include ../../Makefile.ctf
  
  INCS += -I../../../lib/libzpool/common
*** 60,67 ****
--- 60,71 ----
  
  lint:   lint_SRCS
  
  include ../../Makefile.targ
  
+ %.o: ../%.cpp
+         $(COMPILE.cc) $<
+         $(POST_PROCESS_O)
+ 
  %.o: ../%.c
          $(COMPILE.c) $<
          $(POST_PROCESS_O)