# building.
###########################################################################
+# Ensure people re-run configure when it gets updated
+all::$(LLVM_OBJ_ROOT)/include/Config/config.h
+
ifdef SHARED_LIBRARY
# if SHARED_LIBRARY is specified, the default is to build the dynamic lib
all:: dynamic
$(BUILD_OBJ_DIR)/Depend/%.d: %.c $(BUILD_OBJ_DIR)/Depend/.dir
$(VERB) $(DependC) -o $@ $< | $(SED) 's|\.o|\.lo|' | $(SED) 's|$*\.lo *|$(BUILD_OBJ_DIR)/Release/& $(BUILD_OBJ_DIR)/Profile/& $(BUILD_OBJ_DIR)/Debug/& $(BUILD_OBJ_DIR)/Depend/$(@F)|g' > $@
+#
+# Autoconf Dependencies.
+#
+$(LLVM_OBJ_ROOT)/include/Config/config.h:: $(LLVM_SRC_ROOT)/configure
+ @${ECHO} "You need to re-run $(LLVM_SRC_ROOT)/configure"
+ @${ECHO} "inside the directory $(LLVM_OBJ_ROOT)"
+ $(VERB) exit 1
+
#
# Include dependencies generated from C/C++ source files, but not if we
# are cleaning (this example taken from the GNU Make Manual).