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-rw-r--r--Make.rules2
1 files changed, 1 insertions, 1 deletions
diff --git a/Make.rules b/Make.rules
index c864064..81881a7 100644
--- a/Make.rules
+++ b/Make.rules
@@ -47,7 +47,7 @@ export srctree objtree
##
# Consult SCM for better version string.
-GIT_REV := $(shell git describe || echo exported)
+GIT_REV := $(shell test -d .git && git describe || echo exported)
ifneq ($(GIT_REV), exported)
FULL_VERSION := $(patsubst $(PACKAGE)-%,%,$(GIT_REV))
FULL_VERSION := $(patsubst v%,%,$(FULL_VERSION))