How might I determine where the Tcl library files are installed for a 
particular custom-compiled interpreter at run-time?  What I think I 
need to determine is the TCL_LIBRARY value that would have been valid 
at compile-time for a particular installed libtcl*.[so|a]*.  I'm having 
difficulty locating that value so succinctly on the C side of api.  Is 
there a means to get that information without invoking the interpreter 
and asking for the auto_path?  Is that even the direction I should be 
looking?

We include our own modified version of tclsh and wish in our software 
distribution for various reasons (preloads our command-set, for 
example).  I've recently added configuration checks that attempt to use 
the existing system Tcl library so that we don't have to build Tcl 
ourselves if a suitable one is found.

What basically seems to be happening is that while we can link with the 
Tcl library just fine, the auto_path it ends up searching does not 
include the system-installed tcl scripts, i.e. /usr/lib/tcl8.4 or 
/usr/local/lib/tcl8.4 on many systems.  The same holds true for incrTcl 
which we also link against.  I don't really want to hardcode either/any 
directory just because it exists either.  How might I be able to get my 
build of tclsh to know (in C code) that it needs to search 
/usr/lib/tcl8.4 for scripts when it successfully links against 
-ltcl8.4?  Thank you in advance for any advice.

Cheers!
Sean Morrison
BRL-CAD Open Source



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