python-any-r1.eclass: Use reverse iter instead of reversing impls array

diff --git a/eclass/python-any-r1.eclass b/eclass/python-any-r1.eclass
index 99aac739b30288599925be7c868026611d03bf78..c6dfc9c7aecb9b60753a08754390cb2cffc1103d 100644 (file)
--- a/eclass/python-any-r1.eclass
+++ b/eclass/python-any-r1.eclass
@@ -313,13 +313,9 @@ python_setup() {
        done
 
        # fallback to best installed impl.
-       local rev_impls=()
-       for i in "${_PYTHON_SUPPORTED_IMPLS[@]}"; do
-               rev_impls=( "${i}" "${rev_impls[@]}" )
-       done
-
-       for i in "${rev_impls[@]}"; do
-               python_export "${i}" EPYTHON PYTHON
+       # (reverse iteration over _PYTHON_SUPPORTED_IMPLS)
+       for (( i = ${#_PYTHON_SUPPORTED_IMPLS[@]} - 1; i >= 0; i-- )); do
+               python_export "${_PYTHON_SUPPORTED_IMPLS[i]}" EPYTHON PYTHON
                if _python_EPYTHON_supported "${EPYTHON}"; then
                        python_wrapper_setup
                        return