tcl crashes when LC_CTYPE is set to one of
the zh_CN.GB* locales (e.g., zh_CN.GB2312).
I encountered this problem with tcl 8.3.3 in both
redhat-7.2 and redhat-7.3 distributions and I had to
removed the file gb2312.enc in order to run tcl
scripts (I don't need Chinese characters with tcl anyway).