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

@@ -46,10 +46,12 @@
 CERRWARN +=     -_gcc=-Wno-uninitialized
 CERRWARN +=     -_gcc=-Wno-unused-variable
 CERRWARN +=     -_gcc=-Wno-parentheses
 CERRWARN +=     -_gcc=-Wno-unused-function
 
+CERRWARN +=     -_cc=-errhdr=no%$(ADJUNCT_PROTO)/usr/include/glib-2.0
+
 ROOTCMDDIR =            $(ROOTLIB)
 ROOTMANIFESTDIR =       $(ROOTSVCSYSTEMFILESYSTEM)
 $(ROOTMANIFEST) :=      FILEMODE = 444
 $(ROOTLIBSVCMETHOD)/svc-rmvolmgr:= FILEMODE = 555