The memory leak cleanup has introduced a testsuite failure on AIX:
/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/abi/pr42230.cc: In function 'int main()': /nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/abi/pr42230.cc:15: error: 'free' is not a member of 'std' compiler exited with status 1
