X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=regen.mk.in;h=bdb1b2714d7411bfa45056abd42dab40049acd89;hp=11e8a32f8e725547f58d6c183839320f53f04d03;hb=20e5ccd063565c2207066d4ed3b48be49143194b;hpb=a4d9f732b93f499b96e3a52459c5f7d2366da14a

diff --git a/regen.mk.in b/regen.mk.in
index 11e8a32..bdb1b27 100644
--- a/regen.mk.in
+++ b/regen.mk.in
@@ -13,9 +13,15 @@
 #
 # If you add includes to configure.ac, add them to CONFIGURE_ACS.
 #
+# Makefiles updated by config.status and passed to SUBDIRMK_MAKEFILES
+# in configure.ac are automatically handled too.  If you have other
+# files updated by config.status (eg, the output of autoheader) you
+# need to put them in CONFIG_STATUS_OUTPUTS (before your inclusion
+# of regen.mk).
+#
 # Also provides a `realclean::' target at the toplevel which deletes
-# the autoconf output.  This may be made into a recursive target
-# by mentioning &TARGETS_realclean in appropriate .sd.mk.
+# the autoconf output.  (This is suitable for being part of a recursive
+# target creaed by setting &TARGETS_realclean in appropriate .sd.mk.)
 
 CONFIGURE	?= configure
 CONFIGURE_AC	?= $(CONFIGURE).ac
@@ -49,14 +55,16 @@ main.mk $(SUBDIRMK_MAKEFILES) $(CONFIG_STATUS_OUTPUTS): .makefiles.stamp
 # This filtering arranges that we can often run config.status to
 # generate only particular output files.  We look for *inputs* that
 # have changed.  If the only inputs that have changed are ones that we
-# know affect only one output (Subdir.sd.mk and *.mk.in), we pass
-# config.status the corresponding output file names.  Otherwise we
-# pass nothing and config.status does them all.  We need to mention
-# Subdir.sd.mk twice because if $(top_srcdir) is `.', make elides the
-# directory part from $?.
+# know affect only one output (Subdir.sd.mk, Final.sd.mk and *.mk.in),
+# we pass config.status the corresponding output file names.
+# Otherwise we pass nothing and config.status does them all.  We need
+# to mention Subdir.sd.mk twice because if $(top_srcdir) is `.', make
+# elides the directory part from $?.  Similarly but not identically
+# Final.sd.mk.
 	$(SUBDIRMK_REGEN_NDEBUG): REGEN STAMP WANTS DEPS=$?
 	./$(CONFIG_STATUS) $(if					\
 		$(filter-out Subdir.sd.mk %/Subdir.sd.mk	\
+			     Final.sd.mk $(top_srcdir)/Final.sd.mk \
 			     %.mk.in				\
 			, $?),,					\
 		$(patsubst $(top_srcdir)/%,%, $(sort		\