In 'make installcheck' for contrib/, insert 'sleep 1' between subdirectory

checks, to ensure the previous test backend has time to quit out of the
regression database.  Also, allow all the checks to be run even if one
of them fails.  Per suggestions from Andrew Dunstan to improve the
usefulness of buildfarm testing.

contrib/Makefile

@@ -1,4 +1,4 @@
-# $PostgreSQL: pgsql/contrib/Makefile,v 1.52 2004/11/04 06:09:17 neilc Exp $
+# $PostgreSQL: pgsql/contrib/Makefile,v 1.53 2004/12/14 22:50:23 tgl Exp $
 
 subdir = contrib
 top_builddir = ..
@@ -57,7 +57,17 @@ WANTED_DIRS = \
 #		xml2		\ (non-standard makefile)
 
 
-all install installdirs uninstall clean distclean maintainer-clean check installcheck:
+all install installdirs uninstall clean distclean maintainer-clean:
 	@for dir in $(WANTED_DIRS); do \
 		$(MAKE) -C $$dir $@ || exit; \
 	done
+
+# We'd like check operations to run all the subtests before failing;
+# also insert a sleep to ensure the previous test backend exited before
+# we try to drop the regression database.
+check installcheck:
+	@CHECKERR=0; for dir in $(WANTED_DIRS); do \
+		sleep 1; \
+		$(MAKE) -C $$dir $@ || CHECKERR=$$?; \
+	done; \
+	exit $$CHECKERR