Fix sample_conf.c generation from tests/Makefile.inc

tests/Makefile.inc

@@ -57,4 +57,4 @@ EXTRA_DIST = tests/data tests/TESTS
 dist_check_SCRIPTS = tests/resource.sh
 
 tests/sample_conf.c: tests/data/sample_conf
-	$(abs_top_srcdir)/tests/resource.sh tests/data/sample_conf >$@
+	$(abs_top_srcdir)/tests/resource.sh $(abs_top_srcdir)/tests/data/sample_conf >$@

tests/sample_conf.h

-extern const unsigned sample_conf_rc_size;
-extern const char sample_conf_rc[];