Add strftime.c, since we now compile it on all hosts.
makepath.c mbswidth.c md5.c memcasecmp.c memcoll.c modechange.c \
path-concat.c physmem.c \
quote.c quotearg.c readtokens.c safe-read.c same.c save-cwd.c \
- savedir.c sha.c stripslash.c unicodeio.c userspec.c version-etc.c xgetcwd.c \
+ savedir.c sha.c strftime.c stripslash.c \
+ unicodeio.c userspec.c version-etc.c xgetcwd.c \
xgethostname.c xmalloc.c xstrdup.c xstrtod.c xstrtol.c xstrtoul.c \
xstrtoumax.c yesno.c