+2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
+
+ gnulib, autoconf: update.
+ * README-hacking (Updating a submodule): Give advice on how to
+ determine the versions of gnulib and autoconf to which we should
+ update.
+ (Release Procedure): Note that submodules should be updated.
+ * bootstrap.conf (gnulib_modules): Rename pipe to spawn-pipe as
+ suggested in updated gnulib NEWS.
+ * gnulib: Choose a stable snapshot according to advice in Bison's
+ README-hacking.
+ * po/POTFILES.in (lib/pipe.c): Rename to...
+ (lib/spawn-pipe.c): ... this.
+ * src/output.c: Update to include spawn-pipe.h.
+ * submodules/autoconf: Update to latest for improvement in m4.m4
+ that excludes M4 with buggy strstr. The only other changes to
+ files that we use are copyright updates.
+