From bbebc106eed298827ed397639ada33a2050c60f5 Mon Sep 17 00:00:00 2001
From: John Criswell <criswell@uiuc.edu>
Date: Tue, 7 Oct 2003 14:16:44 +0000
Subject: [PATCH] Added targets that force users to re-run autoconf when the
 script has been updated.

llvm-svn: 8921
---
 Makefile.rules | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Makefile.rules b/Makefile.rules
index 9152f8edc60..33205b2e0af 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -58,6 +58,9 @@ VPATH=$(SourceDir)
 #	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
@@ -774,6 +777,14 @@ $(BUILD_OBJ_DIR)/Depend/%.d: %.cpp $(BUILD_OBJ_DIR)/Depend/.dir
 $(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).