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>

*** 77,92 ****
--- 77,100 ----
  
  .KEEP_STATE:
  
  all: $(LIBS)
  
+ $(LIBS): libzpool_hdrck.o
+ 
  lint: $(LINTLIB)
  
  include ../../Makefile.targ
  
  EXTPICS= $(DTRACE_OBJS:%=pics/%)
  
+ libzpool_hdrck.o: libzpool_hdrck.cpp
+         $(COMPILE.cc) -DB_FALSE=_B_FALSE -DB_TRUE=_B_TRUE -o $@ $^
+ 
+ libzpool_hdrck.cpp:
+         find .. -name '*.[ch]' | xargs grep -h '^#include <' > $@
+ 
  pics/%.o: ../../../uts/common/fs/zfs/%.c ../common/zfs.h
          $(COMPILE.c) -o $@ $<
          $(POST_PROCESS_O)
  
  pics/%.o: ../../../common/zfs/%.c ../common/zfs.h