Index: flatpak-1.12.2/subprojects/variant-schema-compiler/variant-schema-compiler
===================================================================
--- flatpak-1.12.2.orig/subprojects/variant-schema-compiler/variant-schema-compiler
+++ flatpak-1.12.2/subprojects/variant-schema-compiler/variant-schema-compiler
@@ -4,6 +4,7 @@ import argparse
 import sys
 import os
 from pyparsing import *
+pyparsing_version = tuple(int(x) for x in __version__.split('.'))
 
 typename_prefix = ""
 funcname_prefix = ""
@@ -1741,6 +1742,8 @@ def handleNameableType(toks):
     return type
 
 nameableType = (Optional((Suppress("'") + ident).leaveWhitespace()) + (arrayType ^ maybeType ^ dictType ^ structType)).setParseAction(handleNameableType)
+if pyparsing_version >= (3, 0, 4):
+    nameableType = (Optional((Suppress("'") + ident)) + (arrayType ^ maybeType ^ dictType ^ structType)).setParseAction(handleNameableType)
 
 typeSpec <<= basicType  ^ variantType ^ namedType ^ nameableType