[PATCH] Makefile.in: clean up match.pd-related dependencies

[Alexander Monakov <amonakov@ispras.ru>]

Clean up confusing changes from the recent refactoring for
parallel match.pd build.

gimple-match-head.o is not built. Remove related flags adjustment.

Autogenerated gimple-match-N.o files do not depend on
gimple-match-exports.cc.

{gimple,generic)-match-auto.h only depend on the prerequisites of the
corresponding s-{gimple,generic}-match stamp file, not any .cc file.

gcc/ChangeLog:

	* Makefile.in: (gimple-match-head.o-warn): Remove.
	(GIMPLE_MATCH_PD_SEQ_SRC): Do not depend on
	gimple-match-exports.cc.
	(gimple-match-auto.h): Only depend on s-gimple-match.
	(generic-match-auto.h): Likewise.
---

Tamar, do I understand correctly that you do not have more plans for match.pd
and I won't collide with you if I attempt more cleanups in this area? Thanks!

 gcc/Makefile.in | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 7e7ac078c5..0cc13c37d0 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -230,7 +230,6 @@ gengtype-lex.o-warn = -Wno-error
 libgcov-util.o-warn = -Wno-error
 libgcov-driver-tool.o-warn = -Wno-error
 libgcov-merge-tool.o-warn = -Wno-error
-gimple-match-head.o-warn = -Wno-unused
 gimple-match-exports.o-warn = -Wno-unused
 dfp.o-warn = -Wno-strict-aliasing
 
@@ -2674,12 +2673,10 @@ s-tm-texi: build/genhooks$(build_exeext) $(srcdir)/doc/tm.texi.in
 	  false; \
 	fi
 
-$(GIMPLE_MATCH_PD_SEQ_SRC): s-gimple-match gimple-match-head.cc \
-		    gimple-match-exports.cc; @true
-gimple-match-auto.h: s-gimple-match gimple-match-head.cc \
-		    gimple-match-exports.cc; @true
+$(GIMPLE_MATCH_PD_SEQ_SRC): s-gimple-match gimple-match-head.cc; @true
+gimple-match-auto.h: s-gimple-match; @true
 $(GENERIC_MATCH_PD_SEQ_SRC): s-generic-match generic-match-head.cc; @true
-generic-match-auto.h: s-generic-match generic-match-head.cc; @true
+generic-match-auto.h: s-generic-match; @true
 
 s-gimple-match: build/genmatch$(build_exeext) \
 	    $(srcdir)/match.pd cfn-operators.pd
-- 
2.39.2