Add buildinfo files to the bindist

rules/build-package.mk

@@ -150,7 +150,7 @@ endif # package-data.mk exists
 
 # Don't put bootstrapping packages in the bindist
 ifneq "$3" "0"
-BINDIST_EXTRAS += $1/*.cabal $1/$2/setup-config $1/LICENSE
+BINDIST_EXTRAS += $1/*.cabal $1/*.buildinfo $1/$2/setup-config $1/LICENSE
 BINDIST_EXTRAS += $$($1_$2_INSTALL_INCLUDES_SRCS)
 endif