Move stuff to top-level

This makes it easier to use with "git subtree".

1 files changed, 53 insertions, 0 deletions

diff --git a/install.mk b/install.mk
new file mode 100644
index 000000000000..c5eb8eb37743
--- /dev/null
+++ b/install.mk
@@ -0,0 +1,53 @@
+# Add a rule for creating $(1) as a directory.  This template may be
+# called multiple times for the same directory.
+define create-dir =
+  ifndef $(1)_SEEN
+    $(1)_SEEN = 1
+    $(1):
+	$(QUIET) install -d $(1)
+  endif
+endef
+
+
+# Add a rule for installing file $(1) as file $(2) with mode $(3).
+# The directory containing $(2) will be created automatically.
+define install-file-as =
+
+  install: $(2)
+
+  $$(eval $$(call create-dir,$$(dir $(2))))
+
+  $(2): $(1) | $$(dir $(2))
+	$(QUIET) install -m $(3) $(1) $(2)
+
+endef
+
+
+# Add a rule for installing file $(1) in directory $(2) with mode
+# $(3).  The directory will be created automatically.
+define install-file-in =
+  $$(eval $$(call install-file-as,$(1),$(2)/$$(notdir $(1)),$(3)))
+endef
+
+
+define install-program-in =
+  $$(eval $$(call install-file-in,$(1),$(2),0755))
+endef
+
+
+define install-data-in =
+  $$(eval $$(call install-file-in,$(1),$(2),0644))
+endef
+
+
+# Install a symlink from $(2) to $(1).  Note that $(1) need not exist.
+define install-symlink =
+
+  install: $(2)
+
+  $$(eval $$(call create-dir,$$(dir $(2))))
+
+  $(2): | $$(dir $(2))
+	$(QUIET) ln -sfn $(1) $(2)
+
+endef