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>

*** 35,44 ****
--- 35,46 ----
  
  STAT_COMMON_OBJS = timestamp.o
  STAT_COMMON_SRCS = $(STAT_COMMON_OBJS:%.o=$(STATCOMMONDIR)/%.c)
  SRCS += $(STAT_COMMON_SRCS)
  
+ OUTPUTS=$(OBJS) $(STAT_COMMON_OBJS) zpool_hdrck.cpp zpool_hdrck.o
+ 
  LDLIBS += -lzfs -lnvpair -ldevid -lefi -ldiskmgt -luutil -lumem
  
  INCS += -I../../common/zfs -I$(STATCOMMONDIR)
  
  CPPFLAGS += -D_LARGEFILE64_SOURCE=1 -D_REENTRANT $(INCS)
*** 56,69 ****
  
  .KEEP_STATE:
  
  all: $(PROG)
  
! $(PROG): $(OBJS) $(STAT_COMMON_OBJS)
          $(LINK.c) -o $@ $(OBJS) $(STAT_COMMON_OBJS) $(LDLIBS)
          $(POST_PROCESS)
  
  %.o:    $(STATCOMMONDIR)/%.c
          $(COMPILE.c) $<
          $(POST_PROCESS_O)
  
  install: all $(ROOTSBINPROG) $(ROOTUSRSBINLINKS)
--- 58,77 ----
  
  .KEEP_STATE:
  
  all: $(PROG)
  
! $(PROG): $(OUTPUTS)
          $(LINK.c) -o $@ $(OBJS) $(STAT_COMMON_OBJS) $(LDLIBS)
          $(POST_PROCESS)
  
+ zpool_hdrck.o: zpool_hdrck.cpp
+         $(COMPILE.cc) -o $@ $^
+ 
+ zpool_hdrck.cpp:
+         find . -name '*.[ch]' | xargs grep -h '^#include <' > $@
+ 
  %.o:    $(STATCOMMONDIR)/%.c
          $(COMPILE.c) $<
          $(POST_PROCESS_O)
  
  install: all $(ROOTSBINPROG) $(ROOTUSRSBINLINKS)
*** 71,81 ****
  $(POFILE): $(POFILES)
          $(RM) $@
          $(CAT) $(POFILES) > $@
  
  clean:
!         $(RM) $(OBJS) $(STAT_COMMON_OBJS)
  
  lint:   lint_SRCS
  
  # Links from /usr/sbin to /sbin
  $(ROOTUSRSBINLINKS):
--- 79,89 ----
  $(POFILE): $(POFILES)
          $(RM) $@
          $(CAT) $(POFILES) > $@
  
  clean:
!         $(RM) $(PROG) $(OUTPUTS)
  
  lint:   lint_SRCS
  
  # Links from /usr/sbin to /sbin
  $(ROOTUSRSBINLINKS):