Simplified shardman implementation

Author: knizhnik

Makefile

@@ -1,30 +1,25 @@
+# contrib/pg_shardman/Makefile
+
 # the extension name
 EXTENSION = pg_shardman
-EXTVERSION = 0.0.1
 # This file will be executed by CREATE EXTENSION, so let pgxs install it.
-DATA_built = $(EXTENSION)--$(EXTVERSION).sql
-
+DATA = pg_shardman--1.0.sql
 
 MODULE_big = pg_shardman
-OBJS = src/pg_shardman.o src/udf.o src/shard.o src/copypart.o src/timeutils.o \
-       src/shardman_hooks.o
+OBJS = src/pg_shardman.o
+PGFILEDESC = "pg_shardman - sharding for Postgres"
 
-PG_CPPFLAGS += -Isrc/include
+PG_CPPFLAGS = -I$(libpq_srcdir)
+SHLIB_LINK = $(libpq)
 
-# You can specify path to pg_config in PG_CONFIG var
-ifndef PG_CONFIG
-	PG_CONFIG := pg_config
-endif
+ifdef USE_PGXS
+PG_CONFIG = pg_config
 PGXS := $(shell $(PG_CONFIG) --pgxs)
-
-INCLUDEDIR := $(shell $(PG_CONFIG) --includedir)
-PG_CPPFLAGS += -I$(INCLUDEDIR) # add server's include directory for libpq-fe.h
-SHLIB_LINK += -lpq # add libpq
-
-EXTRA_CLEAN = $(EXTENSION)--$(EXTVERSION).sql
-
 include $(PGXS)
-
-# Build big sql file from pieces
-$(EXTENSION)--$(EXTVERSION).sql: init.sql membership.sql shard.sql
-	cat $^ > $@
+else
+SHLIB_PREREQS = submake-libpq
+subdir = contrib/pg_shardman
+top_builddir = ../..
+include $(top_builddir)/src/Makefile.global
+include $(top_srcdir)/contrib/contrib-global.mk
+endif