diff options
Diffstat (limited to 'build-aux/Makefile.once.head/00-var.mk')
| -rw-r--r-- | build-aux/Makefile.once.head/00-var.mk | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/build-aux/Makefile.once.head/00-var.mk b/build-aux/Makefile.once.head/00-var.mk index 1f50f21..7c9e6ff 100644 --- a/build-aux/Makefile.once.head/00-var.mk +++ b/build-aux/Makefile.once.head/00-var.mk @@ -1,4 +1,4 @@ -# Copyright (C) 2016 Luke Shumaker +# Copyright (C) 2016-2017 Luke Shumaker # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by @@ -20,14 +20,17 @@ define mod.var.doc # Outputs: # Target : `$(outdir)/.var.%` # Directory variable: `at.targets` +# Directory variable: `var.` # # It's a well-known secret that many files generated by a Makefile vary with # the values of particular variables, but that GNU Make can't track these # dependencies. Well, with some cleverness, it actually can! # # With this module, to depend on the value of a variable, depend on -# `$(outdir)/.var.VARNAME`. +# `$(outdir)/.var.VARNAME`, or `$(var.)VARNAME` for short. endef mod.var.doc := $(value mod.var.doc) +var. = $(patsubst ./%,%,$(outdir)/.var.) + .PHONY: _var.FORCE |