Don't unset CCACHE_DIR when bisecting

diff --git a/scripts/bisect b/scripts/bisect
index 346633b68e1a9686c127716764006fdfb9046c03..00b82a32994a8419ce509161ddbbad4a975cd9ea 100755 (executable)
--- a/scripts/bisect
+++ b/scripts/bisect
@@ -27,7 +27,7 @@ cat > $runscript <<'EOF'
 
 build_fs () (
   set -e
-  unset CC CXX CPPFLAGS CFLAGS CXXFLAGS LDFLAGS CCACHE_DIR V VERBOSE
+  unset CC CXX CPPFLAGS CFLAGS CXXFLAGS LDFLAGS V VERBOSE
   export V=1 VERBOSE=1
   git clean -fdx
   git reset --hard HEAD