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-rw-r--r--nix/libstore/optimise-store.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/nix/libstore/optimise-store.cc b/nix/libstore/optimise-store.cc
index d8f8d2394b..eb303ab4c3 100644
--- a/nix/libstore/optimise-store.cc
+++ b/nix/libstore/optimise-store.cc
@@ -215,9 +215,10 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path, InodeHa
/* Atomically replace the old file with the new hard link. */
if (rename(tempLink.c_str(), path.c_str()) == -1) {
+ int renameErrno = errno;
if (unlink(tempLink.c_str()) == -1)
printMsg(lvlError, format("unable to unlink `%1%'") % tempLink);
- if (errno == EMLINK) {
+ if (renameErrno == EMLINK) {
/* Some filesystems generate too many links on the rename,
rather than on the original link. (Probably it
temporarily increases the st_nlink field before