(EXTRA_DIST): Remove posixtm.y and getdate.y.

(fu_SOURCES): Put them here instead.
Remove rules for building getdate.c and posixtm.c;  now automake
generates those rules.

lib/Makefile.am

@@ -2,15 +2,14 @@
 noinst_LIBRARIES = fu
 
 EXTRA_DIST = basename.c euidaccess.c \
-getdate.y group-member.c memcpy.c memset.c \
-mkdir.c posixtm.y \
+group-member.c memcpy.c memset.c mkdir.c \
 rename.c rmdir.c rpmatch.c \
 stpcpy.c strcasecmp.c strdup.c strndup.c strstr.c strtol.c strtoul.c
 
 INCLUDES = -I.. -I$(srcdir)
 INCLUDES = -I.. -I$(srcdir) -I../intl
 
-fu_SOURCES = getdate.c getopt.c getopt1.c posixtm.c \
+fu_SOURCES = getdate.y posixtm.y getopt.c getopt1.c \
 argmatch.c backupfile.c dirname.c filemode.c \
 full-write.c getversion.c idcache.c \
 isdir.c long-options.c makepath.c modechange.c path-concat.c \
@@ -26,21 +25,3 @@ mountlist.h path-concat.h pathmax.h \
 save-cwd.h xstrtol.h xstrtoul.h
 
 BUILT_SOURCES = getdate.c posixtm.c
-
-# Since this directory contains two parsers, we have to be careful to avoid
-# running two $(YACC)s during parallel makes.  See below.
-getdate.c: @MAINT@getdate.y
-	@echo expect 10 shift/reduce conflicts
-	$(YACC) $(srcdir)/getdate.y
-	mv y.tab.c getdate.c
-
-# Make the rename atomic, in case sed is interrupted and later rerun.
-# The artificial dependency on getdate.c keeps the two parsers from being
-# built in parallel.  Enforcing this little bit of sequentiality lets
-# everyone (even those without bison) still run mostly parallel builds.
-posixtm.c: @MAINT@posixtm.y getdate.c
-	$(YACC) $(srcdir)/posixtm.y
-	mv y.tab.c posixtm.tab.c
-	sed -e 's/yy/zz/g' posixtm.tab.c > tposixtm.c
-	mv tposixtm.c posixtm.c
-	rm -f posixtm.tab.c