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>

@@ -77,16 +77,24 @@
 
 .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