Thanks Reuben. line 5737 of automake.in would become:
. "\t\@if test ! -f \$@ && test \$(srcdir) != \$(builddir) && test -n \"\$\$(find -L \$(srcdir)/$vala_file) -prune \! -newer \$(srcdir)/$c_file\"; then cp -p \$(srcdir)/$c_file $built_c_file; fi\n" Bruno, can you plausibly make that change locally and retry? Looks like it is also line 5737 of automake (so you could just edit your locally-installed automake and not bother with the development sources, if you're not already using them). By the way, I don't think that find command (or the cp -p for that matter) is excessively portable. But I guess we don't much care about crufty systems for vala support. --thanks, karl.