Hi Ben, regarding this line in Makefile.am
https://git.savannah.gnu.org/cgit/pspp.git/tree/Makefile.am#n155 that you changed in your commit https://git.savannah.gnu.org/cgit/pspp.git/commit/?id=75c0aef55a6135a0398d520519e79df2b3a21e0e . I removed that line alltogether and I could not find a difference. That line is not sufficient to build the gnulib headers before compiling the c files as the dependency is too late in the dependency list. When I remove it and touch the headers, then a rebuild is still started. I tried to understand the purpose but I could not find one. Fritz