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-rw-r--r--src/libstore/build.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 1d611ffba..47a905c81 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -1458,7 +1458,7 @@ void replaceValidPath(const Path & storePath, const Path tmpPath)
tmpPath (the replacement), so we have to move it out of the
way first. We'd better not be interrupted here, because if
we're repairing (say) Glibc, we end up with a broken system. */
- Path oldPath = (format("%1%.old-%2%-%3%") % storePath % getpid() % rand()).str();
+ Path oldPath = (format("%1%.old-%2%-%3%") % storePath % getpid() % random()).str();
if (pathExists(storePath))
rename(storePath.c_str(), oldPath.c_str());
if (rename(tmpPath.c_str(), storePath.c_str()) == -1)