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-rw-r--r--Makefile6
1 files changed, 3 insertions, 3 deletions
diff --git a/Makefile b/Makefile
index f864fbe..a205427 100644
--- a/Makefile
+++ b/Makefile
@@ -4,14 +4,14 @@
#
# Available under the terms of Creative Commons Zero v1.0 Universal.
-GUIX := guix
+GUIX ?= guix
# Almost all commands in this Makefilo are run through `guix time-machine` with
# Guix revision fixed to the one from the commit below. This ensures that the
# same working environment is always used.
-GUIX_COMMIT := a86979b41a49a8fcdaa887970ba594dbba701226
+GUIX_COMMIT ?= a86979b41a49a8fcdaa887970ba594dbba701226
-GUIX_TM = $(GUIX) time-machine --commit=$(GUIX_COMMIT) --
+GUIX_TM ?= $(GUIX) time-machine --commit=$(GUIX_COMMIT) --
GUIX_DEVSHELL = $(GUIX_TM) shell -Df guix.scm --