build/Make: Fix some missing dependencies on the llvm-build generation step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144197 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.rules b/Makefile.rules
index 6dbc976..e82549d 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -86,12 +86,18 @@
#
# Note that this target gets its real dependencies generated for us by
# llvm-build.
-$(LLVMBuildMakeFrag):
+#
+# We include a dependency on this Makefile to ensure that changes to the
+# generation command get picked up.
+$(LLVMBuildMakeFrag): $(PROJ_SRC_ROOT)/Makefile.rules
$(Echo) Constructing LLVMBuild project information.
$(Verb) $(LLVMBuildTool) \
--write-library-table $(LLVMConfigLibraryDependenciesInc) \
--write-make-fragment $(LLVMBuildMakeFrag)
+# For completeness, let Make know how the extra files are generated.
+$(LLVMConfigLibraryDependenciesInc): $(LLVMBuildMakeFrag)
+
# Include the generated Makefile fragment.
#
# We currently only include the dependencies for the fragment itself if we are