NEX-5204 silence lint and studio warnings that only occur with an adjunct proto
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>

*** 27,36 ****
--- 27,37 ----
  include $(SRC)/lib/policykit/Makefile.policykit
  
  CPPFLAGS =      $(POLICYKIT_DBUS_CPPFLAGS) $(POLICYKIT_GLIB_CPPFLAGS) $(CPPFLAGS.master)
  
  CERRWARN +=     -_gcc=-Wno-unused-variable
+ CERRWARN +=     -_cc=-errhdr=no%$(ADJUNCT_PROTO)/usr/include/glib-2.0
  
  CSTD =  $(CSTD_GNU99)
  
  ROOTLIBPCDIR =  $(ROOT)/usr/lib/pkgconfig
  ROOTLIBPC =     $(LIBPCSRC:%=$(ROOTLIBPCDIR)/%)