This reverts commit 2d4da30fde. This Gnulib update was causing failures related to timezones in stime.c. I tried to fix it by adopting the time_rz module from gnulib but that then caused other failures. We can try again later.
2d4da30fde
* lib/Makefile.am: * lib/pipe.c: * m4/gnulib-cache.m4: * m4/gnulib-comp.m4: * m4/pipe.m4: Add pipe-posix module.