L: fix for earlier build Tcl break on Ubuntu 11.04 which broke the build on older compilers.
L: fix for earlier build Tcl break on Ubuntu 11.04 which broke
the build on older compilers.

bk: 4df117c3lBwDqwUfez66jbt2eDjilg
bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper