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-rw-r--r--build-aux/Makefile.once.head/20-var.mk7
1 files changed, 7 insertions, 0 deletions
diff --git a/build-aux/Makefile.once.head/20-var.mk b/build-aux/Makefile.once.head/20-var.mk
new file mode 100644
index 0000000..5f97ef7
--- /dev/null
+++ b/build-aux/Makefile.once.head/20-var.mk
@@ -0,0 +1,7 @@
+# Copyright 2015-2016 Luke Shumaker <lukeshu@sbcglobal.net>.
+
+var = $(patsubst ./%,%,$(topoutdir)/.var.)
+
+$(var)%: FORCE
+ @printf '%s' '$(subst ','\'',$($*))' | sed 's|^|#|' | $(WRITE_IFCHANGED) $@
+-include $(wildcard $(var)*)