+ DIRS := lib/Support utils lib/VMCore lib tools/llvm-shlib \
+ tools/llvm-config tools runtime docs unittests
+ OPTIONAL_DIRS := projects bindings
+endif
+
+ifeq ($(BUILD_EXAMPLES),1)
+ OPTIONAL_DIRS += examples
+endif
+
+EXTRA_DIST := test unittests llvm.spec include win32 Xcode
+
+include $(LEVEL)/Makefile.config
+
+ifneq ($(ENABLE_SHARED),1)
+ DIRS := $(filter-out tools/llvm-shlib, $(DIRS))
+endif
+
+ifneq ($(ENABLE_DOCS),1)
+ DIRS := $(filter-out docs, $(DIRS))
+endif
+
+ifeq ($(MAKECMDGOALS),libs-only)
+ DIRS := $(filter-out tools runtime docs, $(DIRS))
+ OPTIONAL_DIRS :=
+endif
+
+ifeq ($(MAKECMDGOALS),install-libs)
+ DIRS := $(filter-out tools runtime docs, $(DIRS))
+ OPTIONAL_DIRS := $(filter bindings, $(OPTIONAL_DIRS))
+endif
+
+ifeq ($(MAKECMDGOALS),tools-only)
+ DIRS := $(filter-out runtime docs, $(DIRS))
+ OPTIONAL_DIRS :=
+endif
+
+ifeq ($(MAKECMDGOALS),install-clang)
+ DIRS := tools/clang/tools/driver tools/clang/lib/Headers \
+ tools/clang/runtime tools/clang/docs \
+ tools/lto
+ OPTIONAL_DIRS :=
+ NO_INSTALL = 1
+endif
+
+ifeq ($(MAKECMDGOALS),install-clang-c)
+ DIRS := tools/clang/tools/driver tools/clang/lib/Headers \
+ tools/clang/tools/libclang tools/clang/tools/c-index-test \
+ tools/clang/include/clang-c
+ OPTIONAL_DIRS :=
+ NO_INSTALL = 1
+endif
+
+ifeq ($(MAKECMDGOALS),clang-only)
+ DIRS := $(filter-out tools runtime docs unittests, $(DIRS)) \
+ tools/clang tools/lto
+ OPTIONAL_DIRS :=
+endif
+
+ifeq ($(MAKECMDGOALS),unittests)
+ DIRS := $(filter-out tools runtime docs, $(DIRS)) utils unittests
+ OPTIONAL_DIRS :=
+endif
+
+# Use NO_INSTALL define of the Makefile of each directory for deciding
+# if the directory is installed or not
+ifeq ($(MAKECMDGOALS),install)
+ OPTIONAL_DIRS := $(filter bindings, $(OPTIONAL_DIRS))
+endif
+
+# Don't build unittests when ONLY_TOOLS is set.
+ifneq ($(ONLY_TOOLS),)
+ DIRS := $(filter-out unittests, $(DIRS))
+endif