* hgaravel
| Recently, we had to upgrade the Tcl/Tk/Tix binaries included in our
| CADP tools (http://www.inrialpes.fr/vasy/cadp) from TclTk8.2/Tix4.1
| to TclTk 8.4.
--<snip-snip>--
| I hope that sharing this information can be helpful to others Tix
| users and developers.

Thanks very much for that summary. I have one small comment to add:

| I have no clear idea of how to correct Makefile.in/configure
| (probably setting CC = gcc in all cases, since link edit already
| requires gcc), but I have two workarounds that solve the problem:

Usually you do this by setting CC in the environment when calling
configure:

env CC=gcc ./configure ...

Dito goes for CFLAGS, LDFLAGS et al if the configure script supports
it. Usually there is a section at the end where the variables are
substituted in the generated files.

Again, thanks for the summary. It will at least save some of _my_
time in the near future ;-)

R'