gnulib-tool.py: Follow gnulib-tool changes, part 52. Follow gnulib-tool change 2021-12-15 Bruno Haible <bruno@clisp.org> automake-subdir support: Look for 'subdir-objects' also in configure.ac. * pygnulib/GLImport.py (GLImport.__init__): Check for 'subdir-objects' in the AM_INIT_AUTOMAKE macro of configure.ac.