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-rw-r--r--Makefile4
1 files changed, 3 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 3dec8b83e2..04f7d78718 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,9 @@
# 1461501637330902918203684832716283019655932542976 hashes do not give you
# enough guarantees about no collisions between objects ever hapenning.
#
-# -DNSEC if you want git to care about sub-second file mtimes and ctimes.
+# -DUSE_NSEC if you want git to care about sub-second file mtimes and ctimes.
+# -DUSE_STDEV if you want git to care about st_dev changing
+#
# Note that you need some new glibc (at least >2.2.4) for this, and it will
# BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely randomly
# break unless your underlying filesystem supports those sub-second times