Initial import of compiler-rt.
-
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/make/util.mk b/make/util.mk
new file mode 100644
index 0000000..4c08fe4
--- /dev/null
+++ b/make/util.mk
@@ -0,0 +1,29 @@
+# Makefile utilities
+
+###
+# Utility functions
+
+# Function: Set variable value
+#
+# Set the given make variable to the given value.
+Set = $(eval $(1) := $(2))
+
+# Function: Append variable value
+#
+# Append the given value to the given make variable.
+Append = $(eval $(1) += $(2))
+
+###
+# Clean up make behavior
+
+# Cancel all suffix rules. We don't want no stinking suffix rules.
+.SUFFIXES:
+
+###
+# Debugging
+
+# General debugging rule, use 'make print-XXX' to print the
+# definition, value and origin of XXX.
+print-%:
+ $(error PRINT: $(value $*) = "$($*)" (from $(origin $*)))
+