Bug 418032 - Don't build an interface to a disabled crashreporter, r=ted, a=schrep

xpcom/system/Makefile.in

@@ -49,7 +49,10 @@ XPIDLSRCS = \
         nsIXULAppInfo.idl \
         nsIGConfService.idl \
         nsIGnomeVFSService.idl \
-        nsICrashReporter.idl \
         $(NULL)
 
+ifdef MOZ_CRASHREPORTER
+XPIDLSRCS += nsICrashReporter.idl
+endif
+
 include $(topsrcdir)/config/rules.mk