+# Check what to run for -all.
+LIT_ALL_TESTSUITES := $(LIT_TESTSUITE)
+
+extra-site-cfgs::
+.PHONY: extra-site-cfgs
+
+ifneq ($(strip $(filter check-local-all,$(MAKECMDGOALS))),)
+ifndef TESTSUITE
+ifeq ($(shell test -f $(PROJ_OBJ_DIR)/../tools/clang/Makefile && echo OK), OK)
+LIT_ALL_TESTSUITES += $(PROJ_OBJ_DIR)/../tools/clang/test
+
+# Force creation of Clang's lit.site.cfg.
+clang-site-cfg: FORCE
+ $(MAKE) -C $(PROJ_OBJ_DIR)/../tools/clang/test lit.site.cfg Unit/lit.site.cfg
+extra-site-cfgs:: clang-site-cfg
+endif
+
+ifeq ($(shell test -f $(PROJ_OBJ_DIR)/../tools/clang/tools/extra/Makefile && echo OK), OK)
+LIT_ALL_TESTSUITES += $(PROJ_OBJ_DIR)/../tools/clang/tools/extra/test
+
+# 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 $(PROJ_OBJ_DIR)/../tools/polly/test lit.site.cfg
+extra-site-cfgs:: polly-tools-site-cfg
+endif
+endif
+endif
+
+# ulimits like these are redundantly enforced by the buildbots, so
+# just removing them here won't work.
+# Both AuroraUX & Solaris do not have the -m flag for ulimit
+ifeq ($(HOST_OS),SunOS)
+ULIMIT=ulimit -t 600 ; ulimit -d 512000 ; ulimit -v 512000 ;
+else # !SunOS
+ifeq ($(HOST_OS),AuroraUX)
+ULIMIT=ulimit -t 600 ; ulimit -d 512000 ; ulimit -v 512000 ;
+else # !AuroraUX
+# Newer versions of python try to allocate an insane amount of address space for
+# its thread-local storage, don't set a limit here.
+# When -v is not used, then -s has to be used to limit the stack size.
+# FIXME: Those limits should be enforced by lit instead of globally.
+ULIMIT=ulimit -t 600 ; ulimit -d 512000 ; ulimit -m 512000 ; ulimit -s 8192 ;
+endif # AuroraUX
+endif # SunOS
+
+check-local:: lit.site.cfg Unit/lit.site.cfg
+ ( $(ULIMIT) \
+ $(PYTHON) $(LLVM_SRC_ROOT)/utils/lit/lit.py $(LIT_ARGS) $(LIT_TESTSUITE) )
+
+# This is a legacy alias dating from when both DejaGNU and lit were in use.
+check-local-lit:: check-local
+
+check-local-all:: lit.site.cfg Unit/lit.site.cfg extra-site-cfgs
+ ( $(ULIMIT) \
+ $(PYTHON) $(LLVM_SRC_ROOT)/utils/lit/lit.py $(LIT_ARGS) $(LIT_ALL_TESTSUITES) )