Tcl

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I still recommend the workaround in the first post below: disable stack
checking! That is, compile with -DTCL_NO_STACK_CHECK=1.

What your numbers mean: whenever outerVarPtr<stackBound Tcl thinks you
blew the stack (because stackGrowsDown=1, otherwise it'de be >)

What the result probably means is: AIX is not satisfying the assumptions
for that code, so that either
(a) the whole approach fails
(b) stackBound and/or stackGrowsDown are not set properly to begin with

The whole stack checking will be eliminated before 8.6.1: it is ugly,
hacky, not-really-portable as you're finding out. It cannot be done both
correct and portable. And it will not be as necessary due to other changes
that will be coming in.

We've been seeing the same failure on various AIXes, most recently on a
machine where "ulimit -s" reported "hard" which allegedly means a full 4GB
stack. Tcl worked after *decreasing* the stack size with "ulimit -s
32768".

To debug this I've added some "fprintf"'s to
GetStackSize and TclpGetCStackParams which log the return values. The
following failure happens on AIX 5.1 with Tcl 8.5.3, built using xlC_r:

[cnassau] bluebull(AIX[5.1.0.0]):unix/$ make install
Installing libtcl8.5.so to /space/cnassau/tcl/lib/
Installing libtcl8.5.exp to /space/cnassau/tcl/lib/
Installing tclsh as /space/cnassau/tcl/bin/tclsh8.5
Installing tclConfig.sh to /space/cnassau/tcl/lib/
Installing libtclstub8.5.a to /space/cnassau/tcl/lib/
Installing time zone data
GetStackSize: stacksize = 7fff7ffe, rawStacksize = 7ffffffe
TclpGetCStackParams: outerVarPtr = 2ff22410, stackBound = aff2a412,
stackGrowsDown =1
application-specific initialization failed: out of stack space (infinite
loop?)
out of stack space (infinite loop?)
while executing
"proc copyDir { d1 d2 } {

puts [format {%*sCreating %s} [expr { 4 * [info level] }] {} \
[file tail $d2]]

file delete -force -- $d2
..."
(file "/home/cnassau/src/tcl8.5.3/unix/../tools/installData.tcl" line
23)
make: *** [install-tzdata] Error 1

I'm not sure if I'm reading this correctly but it seems the allowable
stack region consists of [0, 2ff22410] and [aff2a412, ffffffff]. Could this
be a problem for the stack check?

192kB stack? That is very low, Please try to increase the stack size.

Logged In: NO

I have the same problem on my AIX 5.3 and the "workaround" does give the
same error.
There is however an Warning message during ./configure and that message
is:
Warning: Can't figure out how to do dynamic loading or shared libraries on
this system

Only ./configure (without --enable-threads --disable-load --disable-shared
--disable-langinfo works)
The error refers to the file /mqm/tcl8.5.1/unix/../tests/all.tcl and line
15
line 15 says: package require Tcl 8.5

does this mean that tcl 8.5.1 is an upgrade installation and not an
initial installation ?

Logged In: NO

Default stack on PowerPC seems to be very low, just 192kB see:
https://computing.llnl.gov/tutorials/pthreads/

Logged In: NO

This might be helpful?
https://computing.llnl.gov/mpi/aix_stack.html

WORKAROUND
define CFLAGS="-DTCL_NO_STACK_CHECK=1" at configure time, or edit the
makefile to add that definition.

FIX
I'll appreciate contact info, and please log in to sourceforge so that we
can communicate via this bug ticket. I do not have AIX anyqhere near me, so
I'll need your collaboration to fix this.