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-rw-r--r--Makefile3
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 6e09559b6..aa5d5d8ca 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,9 @@ system ?= $(HOSTNAME)
$(if $(system),,$(error unbound variable: system))
nixos-config ?= $(stockholm)/$(LOGNAME)/1systems/$(system).nix
+ifneq ($(words $(wildcard $(nixos-config))),1)
+$(error bad nixos-config: $(nixos-config))
+endif
# target = [target_user@]target_host[:target_port][/target_path]
ifdef target