+
+# Force creation of Clang Tools' lit.site.cfg.
+clang-tools-site-cfg: FORCE
+ $(MAKE) -C $(PROJ_OBJ_DIR)/../tools/clang/tools/extra/test lit.site.cfg
+extra-site-cfgs:: clang-tools-site-cfg
+endif
+
+ifeq ($(shell test -f $(PROJ_OBJ_DIR)/../tools/lld/Makefile && echo OK), OK)
+LIT_ALL_TESTSUITES += $(PROJ_OBJ_DIR)/../tools/lld/test
+
+# Force creation of lld's lit.site.cfg.
+lld-site-cfg: FORCE
+ $(MAKE) -C $(PROJ_OBJ_DIR)/../tools/lld/test lit.site.cfg Unit/lit.site.cfg
+extra-site-cfgs:: lld-site-cfg
+endif
+
+ifeq ($(shell test -f $(PROJ_OBJ_DIR)/../tools/polly/Makefile && echo OK), OK)
+LIT_ALL_TESTSUITES += $(PROJ_OBJ_DIR)/../tools/polly/test
+
+# Force creation of Polly's lit.site.cfg.
+polly-tools-site-cfg: FORCE
+ $(MAKE) -C $(PROJ_OBJ_DIR)/../tools/polly/test lit.site.cfg
+extra-site-cfgs:: polly-tools-site-cfg