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-rw-r--r--src/libstore/globals.hh6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index f650cd1b79b5..a97aa6d8b5ec 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -35,6 +35,12 @@ extern string nixLibexecDir;
 /* nixBinDir is the directory where the main programs are stored. */
 extern string nixBinDir;
 
+/* nixChrootsDir is the directory where we create chroot environments
+   (when chroot builds are enabled).  We don't put these under /tmp to
+   prevent "rm -rf /tmp" from recursing into /nix/store via the bind
+   mounts in the chroots. */
+extern string nixChrootsDir;
+
 
 /* Misc. global flags. */