Reduce work done for directory traversal in srcdir==objdir builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29300 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.rules b/Makefile.rules
index 779e0a6..eee01ee 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -487,6 +487,8 @@
SubDirs :=
ifdef DIRS
SubDirs += $(DIRS)
+
+ifneq ($(PROJ_SRC_ROOT),$(PROJ_OBJ_ROOT))
$(RecursiveTargets)::
$(Verb) for dir in $(DIRS); do \
if [ ! -f $$dir/Makefile ]; then \
@@ -495,6 +497,13 @@
fi; \
($(MAKE) -C $$dir $@ ) || exit 1; \
done
+else
+$(RecursiveTargets)::
+ $(Verb) for dir in $(DIRS); do \
+ ($(MAKE) -C $$dir $@ ) || exit 1; \
+ done
+endif
+
endif
#---------------------------------------------------------
@@ -545,6 +554,7 @@
SubDirs += $(OPTIONAL_DIRS)
+ifneq ($(PROJ_SRC_ROOT),$(PROJ_OBJ_ROOT))
$(RecursiveTargets)::
$(Verb) for dir in $(OPTIONAL_DIRS); do \
if [ -d $(PROJ_SRC_DIR)/$$dir ]; then\
@@ -555,6 +565,12 @@
($(MAKE) -C$$dir $@ ) || exit 1; \
fi \
done
+else
+$(RecursiveTargets)::
+ $(Verb) for dir in $(OPTIONAL_DIRS); do \
+ ($(MAKE) -C$$dir $@ ) || exit 1; \
+ done
+endif
endif
#---------------------------------------------------------