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-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 51a17aa98..36c8e0034 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ HIDE := $(if $(VERBOSE),,@)
install-coqprime clean-coqprime coqprime \
specific non-specific
-SORT_COQPROJECT = sed 's,[^/]*/,~&,g' | env LC_COLLATE=C sort | sed 's,~,,g'
+SORT_COQPROJECT = sed 's,[^/]*/,~&,g' | env LC_COLLATE=C sort | sed 's,~,,g' | uniq
FAST_TARGETS += archclean clean cleanall clean-coqprime printenv clean-old update-_CoqProject Makefile.coq
SUPER_FAST_TARGETS += update-_CoqProject Makefile.coq